Monitor Conditions
- When Monitored: Continuously with the ignition on and engine running.
Set Conditions
- Set Condition: This DTC will set if the monitored TPS voltage drops below.078 of a volt for the period of 0.48 of a second.
Possible Causes
| Possible Causes |
|---|
| RELATED TPS ENGINE DTCS PRESENT |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: Continuously with the ignition on and engine running.
- Set Condition: This DTC will set if the monitored TPS voltage rises above 4.94 volts for the period of 0.48 of a second.
| Possible Causes |
|---|
| RELATED TPS ENGINE DTCS PRESENT |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: Continuously with the ignition on and engine running.
- Set Condition: This DTC will set if the monitored TPS throttle angle is between 6° and 120° and the value changes by more than 5° in a period of 7.0 ms or less.
| Possible Causes |
|---|
| RELATED TPS ENGINE DTCS PRESENT |
| THROTTLE POSITION SENSOR (TPS) |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: Whenever the engine is running.
- Set Condition: Immediately when an Overheat shift schedule is activated when the Transmission Oil Temperature reaches 115° C (240° F).
| Possible Causes |
|---|
| ENGINE COOLING SYSTEM OPERATION |
| TRANSMISSION OIL COOLER PLUGGED |
| OPERATING IN LIMP-HOME MODE |
| TORQUE CONVERTER CLUTCH NOT ENGAGING PROPERLY |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: With the engine running and the PCM has commanded the TIPM to energize the Transmission Control Output.
- Set Condition: If the battery voltage of the Transmission Control Output Sense circuit(s) to the PCM is less than 10.0 volts for the period of 15 seconds. Note: P0562 generally indicates a gradually falling battery voltage or a resistive connection(s) to the PCM. The DTC will also set if the battery voltage sensed at the PCM is less than 6.5 volts for 200 msec or when Transmission Control Output circuits are less than 7.2 volts for 200 msec.
| Possible Causes |
|---|
| RELATED CHARGING SYSTEM DTCS |
| (Z902) GROUND CIRCUIT OPEN OR HIGH RESISTANCE |
| (T16) TRANSMISSION CONTROL OUTPUT TO TCM OPEN OR HIGH RESISTANCE |
| TOTALLY INTEGRATED POWER MODULE (TIPM) |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 473
Scheme 474
- CHECK FOR RELATED CHARGING SYSTEM DTCS With the scan tool, read the Engine DTCs. Are there any Charging System related DTCs present? Yes Refer to «CHARGING - SERVICE INFORMATION»(ref-352871) and repair any Charging System DTCs before proceeding. After repairing the Charging System DTCs, perform the Transmission Verification test to verify the transmission and or controller was not damaged. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 2
- CHECK FOR TIPM DTCS NOTE: Generator, battery, and charging system must be fully functional before performing this test. With the scan tool, read TIPM DTCs. Are there any TIPM TCM Power Control Circuit DTCs present also? Yes Refer to DTC Based Diagnostics and perform the appropriate diagnostic procedure. No Go to step 3
- CONDITION P0562 PRESENT With the scan tool, read Transmission DTCs. With the scan tool, Check the Starts Since Set counter for P0562. NOTE: This counter only applies to the last DTC set. Is the Starts Since Set counter set at 0? Yes Go to step 4 No Go to step 6
- CHECK THE (Z902) GROUND CIRCUITS FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. NOTE: Check connectors - Clean/repair as necessary. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis. Using a 12-volt test light connected to 12-volts, check the (Z902) ground circuits in the appropriate terminals of Miller tool #8815. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly for all the Ground circuits? Yes Go to step 5 No Repair the (Z902) ground circuits for an open circuit or high resistance. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- CHECK THE (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/pressure Switch Assembly harness connector. Disconnect the Line Pressure Sensor/Variable Force Solenoid Assembly harness connector (if equipped). Ignition on, engine not running. With the scan tool under TIPM, actuate the Transmission. Using a 12-volt test light connected to ground, check all (T16) Transmission Control Output circuits. NOTE: The (T16) Transmission Control Output circuit branches off to both Transmission Solenoid/Pressure Switch Assembly, PCM and (if equipped) the Line Pressure Sensor/Variable Force Solenoid Assembly. Does the test light illuminate brightly while cycling on and off on all (T16) Transmission Control Output circuits? Yes Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform Quick Learn. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Repair the (T16) Transmission Control Relay Output circuit(s) for an open or high resistance. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wiring and connectors while checking for shorts and open circuits. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: Check for generic software is made at power-up.
- Set Condition: If generic software is found, the MIL will light immediately. This DTC is designed to signal the technician that the controller still has generic software installed.
| Possible Causes |
|---|
| PCM - PROGRAMMING ERROR |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: One time after the ignition switch is turned to the run position.
- Set Condition: The read value does not match the written value in any RAM location.
| Possible Causes |
|---|
| PCM - INTERNAL ERROR |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: One time after the ignition switch is turned to the run position.
- Set Condition: If the ROM checksum does not match a known constant.
| Possible Causes |
|---|
| POWERTRAIN CONTROL MODULE - INTERNAL ERROR |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: After the ignition switch is turned to the run position and 60 seconds thereafter.
- Set Condition: Either of the following conditions occur 3 times in less than 590 milliseconds: The watchdog line remains high after the watchdog test or the transmission relay coil is energized and remains on after the watchdog delay expires.
| Possible Causes |
|---|
| POWERTRAIN CONTROL MODULE - INTERNAL ERROR |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Continuously with the ignition on in the run position.
- Set Condition: The DTC will set if an invalid PRNDL code exists for more than 100 milliseconds within one second of power-up or if the PRNDL code error does not correct itself when (or before) the shift lever is moved to a different position (P, R, N, or OD), or if the PCM sees the PRNDL code rapidly (within 7 ms) jump across more than three shift lever detent positions.
| Possible Causes |
|---|
| SHIFT LEVER CABLE OUT OF ADJUSTMENT |
| METAL DEBRIS ON TRS CODE PLATE |
| TRS SENSE CIRCUIT OPEN |
| TRS SENSE CIRCUIT SHORT TO GROUND |
| TRS SENSE CIRCUIT SHORT TO VOLTAGE |
| TRANSMISSION RANGE SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
| SLP | T41 (C1) | T42 (C2) | T3 (C3) | T1 (C4) |
|---|---|---|---|---|
| P | CLOSED | CLOSED | CLOSED | OPEN |
| R | OPEN | CLOSED | OPEN | OPEN |
| N | CLOSED | CLOSED | OPEN | CLOSED |
| OD | OPEN | OPEN | OPEN | CLOSED |
| 3 | OPEN | OPEN | CLOSED | OPEN |
| L | OPEN | CLOSED | CLOSED | CLOSED |
TRS SWITCH STATES
- When Monitored: Continuously with the ignition on and engine running.
- Set Condition: DTC will set when the transmission temperature does not reach a normal operating temperature within a given time frame. Time is variable due to ambient temperature. Approximate DTC set time is 10 to 35 minutes. The following are starting temperature to warm up times to set this DTC: starting temperature -40° C (-40° F) warm up time 35 minutes, starting temperature -28° C ( -20° F) 25 minutes, starting temperature -6.6° C (20° F) 20 minutes, starting temperature 15.5° C (60° F) 10 minutes. When the fault is set, calculated temperature is substituted for measured temperature, however the DTC is stored only after three consecutive occurrences.
| Possible Causes |
|---|
| RELATED TRANSMISSION TEMPERATURE DTCS PRESENT |
| TRANSMISSION TEMPERATURE SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: Continuously with the ignition on and engine running.
- Set Condition: The DTC will set when the monitored Temperature Sensor voltage drops below 0.078 of a volt for the period of 1.45 seconds. When the fault is set, calculated temperature is substituted for measured temperature, however the fault code is stored only after three consecutive occurrences of the fault.
| Possible Causes |
|---|
| RELATED DTCS PRESENT |
| (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| TRANSMISSION TEMPERATURE SENSOR (IN TRS ASSEMBLY) |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
Scheme 475
- DETERMINE IF RELATED DTCS ARE PRESENT With the scan tool, check Transmission DTCs. Are there any Speed Sensor DTCs present? Yes See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(ref-353649-S23019684002010011200000) and perform the appropriate diagnostic procedure. No Go to step 2
- CHECK IF THE DTC IS ACTIVE With the scan tool, view DTCs. Is the status Active or is the Starts Since Set counter 2 or less for this DTC? Yes Go to step 3 No Go to step 5
- CHECK THE PCM AND WIRING WITH THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid Relay from the TIPM. CAUTION: Removal of the Starter Solenoid Relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid Relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. NOTE: Check connectors - Clean/repair as necessary. Ignition on, engine not running. With the Transmission Simulator, turn the Input/Output switch to OFF. With the scan tool, monitor the TRANS TEMP VOLTS while turning the Thermistor Voltage switch to all three positions on the Transmission Simulator. Compare the scan tool readings with the numbers listed on the Transmission Simulator. Do the readings on the Transmission Simulator match the scan tool readings ± 0.2 of a volt? Yes Replace the Transmission Temperature Sensor (in the TRS Assembly) in accordance with the Service Information. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 4
- CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the TRS harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis. Measure the resistance between ground and the (T54) Transmission Temperature Sensor Signal circuit. Is the resistance below 5.0 Ohms? Yes Repair the (T54) Transmission Temperature Sensor Signal circuit for a short to ground. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set. Check for any Service Information Tune-ups or Service Bulletins for any possible causes that may apply. Were there any problems found? Yes Repair as necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Test Complete.
- When Monitored: Continuously with the ignition on and engine running.
- Set Condition: The DTC will set when the monitored Temperature voltage rises above 4.94 volts for the period of 1.45 seconds. When the fault is set, calculated temperature is substituted for measured temperature, however the fault code is stored only after three consecutive occurrences of the fault.
| Possible Causes |
|---|
| (T900) SENSOR GROUND OPEN |
| (T54) TRANSMISSION TEMPERATURE SIGNAL CIRCUIT OPEN |
| (T54) TRANSMISSION TEMPERATURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| TRANSMISSION TEMPERATURE SENSOR (IN TRS ASSEMBLY) |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
Scheme 476
Scheme 477
Scheme 478
- CHECK TO SEE IF DTC IS CURRENT With the scan tool, view DTCs. Is the status Active for this DTC or is Starts Since Set counter 2 or less? Yes Go to step 2 No Go to step 6
- CHECK THE PCM AND WIRING WITH THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the Transmission Simulator, turn the Input/Output switch to OFF. With the scan tool, monitor the TRANS TEMP VOLTS while turning the Thermistor Voltage switch to all three positions on the Transmission Simulator. Compare the scan tool readings with the numbers listed on the Transmission Simulator. Do the readings on the Transmission Simulator match the scan tool readings ± 0.2 volts? Yes Replace the Transmission Temperature Sensor (in the TRS Assembly) in accordance with the Service Information. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 3
- CHECK THE (T54) TRANSMISSION TEMPERATURE SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T54) Transmission Temperature Signal circuit between the appropriate terminal of the PCM Pinout Box 8815 and the Transmission Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 Ohms? Yes Repair the (T54) Transmission Temperature Signal circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 4
- CHECK THE (K900) SENSOR GROUND CIRCUIT FOR AN OPEN Disconnect the PCM C2 harness connector. Measure the resistance of the (K900) Sensor Ground circuit between the appropriate terminal of the PCM Pinout Box 8815 and the Transmission Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 Ohms? Yes Repair the (K900) Sensor Ground circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 5
- CHECK THE (T54) TRANSMISSION TEMPERATURE SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T54) Transmission Temperature Signal circuit in the appropriate terminal of the PCM Pinout Box 8815. Is the voltage above 0.5 of a volt? Yes Repair the (T54) Transmission Temperature Sensor Signal circuit for a short to voltage. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set. Check for any Service Information Tune-ups or Service Bulletins for any possible causes that may apply. Were there any problems found? Yes Repair as necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Test Complete.
- When Monitored: Continuously with the ignition on and engine running.
- Set Condition: The DTC will set when the monitored Temperature Sensor voltage fluctuates or changes abruptly within a predetermined period of time.
| Possible Causes |
|---|
| TRANSMISSION TEMPERATURE SENSOR (IN TRS ASSEMBLY) |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: The transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If there is an excessive change in the Input RPM in any valid gear (R, 1st, 2nd, 3rd, or 4th).
| Possible Causes |
|---|
| (T52) INPUT SPEED SIGNAL CIRCUIT OPEN |
| (T13) SPEED SENSOR GROUND CIRCUIT OPEN |
| (T52) INPUT SPEED SIGNAL CIRCUIT SHORT TO GROUND |
| (T52) INPUT SPEED SIGNAL CIRCUIT SHORT TO VOLTAGE |
| (T13) SPEED SENSOR GROUND CIRCUIT SHORT TO VOLTAGE |
| INPUT SPEED SENSOR |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 479
Scheme 480
Scheme 481
Scheme 482
Scheme 483
- CHECK TO SEE IF DTC P0716 IS CURRENT Start the engine. Place the shift lever in park. With the scan tool, read the Input Speed Sensor RPM. Is the Input Speed Sensor reading below 400 RPM? Yes Go to step 2 No Go to step 8
- CHECK THE PCM AND WIRING WITH THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the Transmission Simulator, set the "Input/Output Speed" switch to "ON" and the rotary switch to the "3000/1250" position. With the scan tool, read the Input and Output RPM. Does the Input speed read 3000 RPM and the Output speed read 1250 RPM ± 50 RPM? Yes Replace the Input Speed Sensor per the Service Information. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 3
- CHECK THE (T52) INPUT SPEED SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Input Speed Sensor harness connector. NOTE: Check connectors - Clean/repair as necessary. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T52) Input Speed Signal circuit between the appropriate terminal of Miller tool #8815 and the Input Speed Sensor harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T52) Input Speed Signal circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 4
- CHECK THE (T13) SPEED SENSOR GROUND CIRCUIT FOR AN OPEN Measure the resistance of the (T13) Speed Sensor Ground circuit between the appropriate terminal of Miller tool #8815 and the Input Speed Sensor harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T13) Speed Sensor Ground circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 5
- CHECK THE (T52) INPUT SPEED SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T52) Input Speed Signal circuit. Is the resistance Below 5.0 ohms? Yes Repair the (T52) Input Speed Signal circuit for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 6
- CHECK THE (T52) INPUT SPEED SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Disconnect the Output Speed Sensor harness connector. Ignition on, engine not running. With the scan tool in the TIPM, actuate the Transmission. Measure the voltage of the (T52) Input Speed Signal circuit. Is the voltage above 0.5 volt? Yes Repair the (T52) Input Speed Signal circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 7
- CHECK THE (T13) SPEED SENSOR GROUND CIRCUIT FOR A SHORT TO VOLTAGE NOTE: The jumper wire must still be connected. Measure the voltage of the (T13) Speed Sensor Ground circuit. Is the voltage above 0.5 volts? Yes Repair the (T13) Speed Sensor Ground circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wiring and connectors while checking for shorted and open circuits. With the scan tool , check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: The transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If there is an excessive change in the Output RPM in any gear.
| Possible Causes |
|---|
| (T14) OUTPUT SPEED SIGNAL CIRCUIT OPEN |
| (T13) SPEED SENSOR GROUND CIRCUIT OPEN |
| (T14) OUTPUT SPEED SIGNAL CIRCUIT SHORT TO GROUND |
| (T14) OUTPUT SPEED SIGNAL CIRCUIT SHORT TO VOLTAGE |
| (T13) SPEED SENSOR GROUND CIRCUIT SHORT TO VOLTAGE |
| OUTPUT SPEED SENSOR |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 484
Scheme 485
Scheme 486
Scheme 487
- CHECK IF THE DTC IS CURRENT Start the engine in park. Raise the drive wheels off of the ground. WARNING: Properly support the vehicle. Firmly apply the brakes and place the transmission selector in drive. WARNING: Be sure to keep hands and feet clear of rotating wheels. Release the brakes and allow the drive wheels to spin freely. NOTE: The drive wheels must be turning at this point. With the scan tool, read the Output RPM. Is the Output RPM below 100? Yes Go to step 2 No Go to step 8
- CHECK THE PCM AND WIRING USING THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the Transmission Simulator, set the "Input/Output Speed" switch to "ON" and the rotary switch to the "3000/1250" position. With the scan tool, read the Input and Output RPM. Does the Input RPM read 3000 and the Output RPM read 1250 (within 50 RPM)? Yes Replace the Output Speed Sensor per the Service Information. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 3
- CHECK THE (T14) OUTPUT SPEED SENSOR SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Output Speed harness connector. NOTE: Check connectors - Clean/repair as necessary. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T14) Output Speed Signal circuit between the appropriate terminal of Miller tool #8815 and the Output Speed Sensor harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T14) Output Speed Signal circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 4
- CHECK THE (T13) SPEED SENSOR GROUND CIRCUIT FOR AN OPEN Measure the resistance of the Speed Sensor Ground circuit between the appropriate terminal of Miller tool #8815 and the Output Speed Sensor harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T13) Speed Sensor Ground circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 5
- CHECK THE (T14) OUTPUT SPEED SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T14) Output Speed Signal circuit. Is the resistance below 5.0 ohms? Yes Repair the (T14) Output Speed Signal circuit for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 6
- CHECK THE (T14) OUTPUT SPEED SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T14) Output Speed Signal circuit. Is the voltage above 0.5 volt? Yes Repair the (T14) Output Speed Signal circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 7
- CHECK THE (T13) SPEED SENSOR GROUND CIRCUIT FOR A SHORT TO VOLTAGE NOTE: The jumper wire must still be connected. Measure the voltage of the (T13) Speed Sensor Ground circuit. Is the voltage above 0.5 volts? Yes Repair the (T13) Speed Sensor Ground circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wiring and connectors while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: Whenever the engine is running.
- Set Condition: The Engine RPM is less than 390 or greater than 8000 for more than 2 seconds while the engine is running.
| Possible Causes |
|---|
| ENGINE DTCS PRESENT |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: The Transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If the ratio of the Input RPM to the Output RPM does not match the current gear ratio when compared to the known gear ratio.
| Possible Causes |
|---|
| RELATED TRANSMISSION DTCS PRESENT |
| INTERMITTENT GEAR RATIO ERRORS |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| INTERNAL TRANSMISSION |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: The Transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If the ratio of the Input RPM to the Output RPM does not match the current gear ratio when compared to the known gear ratio.
| Possible Causes |
|---|
| RELATED TRANSMISSION DTCS PRESENT |
| INTERMITTENT GEAR RATIO ERRORS |
| INTERNAL TRANSMISSION |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: The Transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If the ratio of the Input RPM to the Output RPM does not match the current gear ratio when compared to the known gear ratio.
| Possible Causes |
|---|
| RELATED TRANSMISSION DTCS PRESENT |
| TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY |
| INTERMITTENT GEAR RATIO ERRORS |
| INTERNAL TRANSMISSION |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: The Transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If the ratio of the Input RPM to the Output RPM does not match the current gear ratio when compared to the known gear ratio.
| Possible Causes |
|---|
| RELATED TRANSMISSION DTCS PRESENT |
| INTERMITTENT GEAR RATIO ERRORS |
| TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY |
| INTERNAL TRANSMISSION |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: The Transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If the ratio of the Input RPM to the Output RPM does not match the current gear ratio when compared to the known gear ratio.
| Possible Causes |
|---|
| RELATED TRANSMISSION DTCS PRESENT |
| INTERMITTENT GEAR RATIO ERRORS |
| TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY |
| INTERNAL TRANSMISSION |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: The Transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If the ratio of the Input RPM to the Output RPM does not match the current gear ratio when compared to the known gear ratio.
| Possible Causes |
|---|
| RELATED TRANSMISSION DTCS PRESENT |
| INTERMITTENT GEAR RATIO ERRORS |
| TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY |
| INTERNAL TRANSMISSION |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: The Transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If the ratio of the Input RPM to the Output RPM does not match the current gear ratio when compared to the known gear ratio.
| Possible Causes |
|---|
| RELATED TRANSMISSION DTCS PRESENT |
| INTERMITTENT GEAR RATIO ERRORS |
| INTERNAL TRANSMISSION |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: The Torque Converter Clutch (TCC) is in FEMCC or PEMCC, Transmission temperature is hot, Engine temperature is greater than 38° C or 100° F, Transmission Input Speed greater than engine speed, TPS less than 30°, and brake not applied.
- Set Condition: The TCC is modulated by controlling the duty cycle of the L/R Solenoid until the difference between the Engine RPM and the Transmission Input Speed RPM or duty cycle is within a desired range. The DTC is set after the period of 10 seconds and three occurrences of either: FEMCC - with slip greater than 100 RPM or PEMCC - duty cycle greater than 85%.
| Possible Causes |
|---|
| RELATED L/R SOLENOID OR PRESSURE SWITCH DTCS PRESENT |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: Initially at ignition on, then every 10 seconds thereafter. The solenoids will also be tested immediately after a gear ratio error or pressure switch error is detected.
- Set Condition: Three consecutive solenoid continuity test failures, or one failure if test is run in response to a gear ratio or pressure switch error.
| Possible Causes |
|---|
| RELATED TIPM TRANSMISSION DTCS PRESENT |
| (T20) L/R SOLENOID CONTROL CIRCUIT OPEN |
| (T20) L/R SOLENOID CONTROL CIRCUIT SHORT TO GROUND |
| (T20) L/R SOLENOID CONTROL CIRCUIT SHORT TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 488
Scheme 489
Scheme 490
- CHECK IF TIPM TCM DTCS ARE PRESENT With the scan tool, read DTCs Are there any Transmission Control Relay DTCs present also? Yes Refer to «TRANSMISSION CONTROL MODULE (TCM) - ELECTRICAL DIAGNOSTICS»(ref-352898) and perform the appropriate diagnostic procedure. No Go to step 2
- CHECK IF THE DTC IS CURRENT With the scan tool, view DTCs. Is the status Active or is STARTS SINCE SET counter set at 0 for this DTC? Yes Go to step 3 No Go to step 8
- CHECK THE PCM AND WIRING USING THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the scan tool, actuate the L/R Solenoid. Monitor the L/R Solenoid LED on the Transmission Simulator. Did the L/R Solenoid LED on the Transmission Simulator blink on and off during actuation? Yes Go to step 4 No Go to step 5
- CHECK WIRING USING THE TRANSMISSION SIMULATOR With the scan tool, continue to actuate the L/R Solenoid. While monitoring the L/R Solenoid LED on the Transmission Simulator, wiggle the related wiring harness and connectors. Did the L/R Solenoid LED on the Transmission Simulator continue to blink on and off during the wiggle test? Yes Replace the Transmission Solenoid/TRS Assembly per the Service Information. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Repair wiring or connectors as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- CHECK THE (T20) L/R SOLENOID CONTROL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T20) L/R Solenoid Control circuit between the appropriate terminal of Miller tool #8815 and the Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T20) L/R Solenoid Control circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 6
- CHECK THE (T20) L/R SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T20) L/R Solenoid Control circuit. Is the resistance below 5.0 ohms? Yes Repair the (T20) L/R Solenoid Control circuit for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 7
- CHECK THE (T20) L/R SOLENOID CONTROL CIRCUIT FOR A SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T20) L/R Solenoid Control circuit. Is the voltage above 0.5 volts? Yes Repair the (T20) L/R Solenoid Control circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: Initially at ignition on, then every 10 seconds thereafter. The solenoids will also be tested immediately after a gear ratio error or pressure switch error is detected.
- Set Condition: Three consecutive solenoid continuity test failures, or one failure if test is run in response to a gear ratio or pressure switch error.
| Possible Causes |
|---|
| RELATED TIPM TRANSMISSION DTCS PRESENT |
| (T19) 2/4 SOLENOID CONTROL CIRCUIT OPEN |
| (T19) 2/4 SOLENOID CONTROL CIRCUIT SHORTED TO GROUND |
| (T19) 2/4 SOLENOID CONTROL CIRCUIT SHORTED TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
Scheme 491
Scheme 492
Scheme 493
- CHECK IF RELATED TIPM TCM DTCS ARE PRESENT With the scan tool, read DTCs Are there any Transmission Control Relay DTCs present also? Yes See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(ref-353649-S23019684002010011200000) and perform the appropriate diagnostic procedure. No Go to step 2
- CHECK TO SEE IF THE DTC IS CURRENT With the scan tool, view DTCs. Is the status Active or is the Starts Since Set counter set at 0 for this DTC? Yes Go to step 3 No Go to step 8
- CHECK THE PCM AND WIRING USING THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the scan tool, actuate the 2/4 Solenoid. Monitor the 2/4 Solenoid LED on the Transmission Simulator. Did the 2/4 Solenoid LED on the Transmission Simulator blink on and off during actuation? Yes Go to step 4 No Go to step 5
- CHECK WIRING USING THE TRANSMISSION SIMULATOR With the scan tool, continue to actuate the 2/4 Solenoid. While monitoring the 2/4 Solenoid LED on the Transmission Simulator, wiggle the related wiring harness and connectors. Did the 2/4 Solenoid LED on the Transmission Simulator continue to blink on and off during the wiggle test? Yes Replace the Transmission Solenoid/TRS Assembly in accordance with the Service Information. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Repair wiring or connectors as necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE (T19) 2/4 SOLENOID CONTROL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T19) 2/4 Solenoid Control circuit between the appropriate terminal of the PCM Pinout Box 8815 and the Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 Ohms? Yes Repair the (T19) 2/4 Solenoid Control circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 6
- CHECK THE (T19) 2/4 SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T19) 2/4 Solenoid Control circuit. Is the resistance below 5.0 Ohms? Yes Repair the (T19) 2/4 Solenoid Control circuit for a short to ground. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 7
- CHECK THE (T19) 2/4 SOLENOID CONTROL CIRCUIT FOR A SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T19) 2/4 Solenoid Control circuit. Is the voltage above 0.5 of a volt? Yes Repair the (T19) 2/4 Solenoid Control circuit for a short to voltage. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. Were there any problems found? Yes Repair as necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Test Complete.
- When Monitored: Initially at ignition on, then every 10 seconds thereafter. The solenoids will also be tested immediately after a gear ratio error or pressure switch error is detected.
- Set Condition: Three consecutive solenoid continuity test failures, or one failure if test is run in response to a gear ratio or pressure switch error.
| Possible Causes |
|---|
| RELATED TIPM TRANSMISSION DTCS PRESENT |
| (T80) LC SOLENOID CONTROL CIRCUIT OPEN |
| (T80) LC SOLENOID CONTROL CIRCUIT SHORT TO GROUND |
| (T80) LC SOLENOID CONTROL CIRCUIT SHORT TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 494
Scheme 495
Scheme 496
- CHECK IF TIPM TCM DTCS ARE PRESENT With the scan tool, read DTCs Are there any Transmission Control Relay DTCs present also? Yes Refer to «TRANSMISSION CONTROL MODULE (TCM) - ELECTRICAL DIAGNOSTICS»(ref-352898) and perform the appropriate diagnostic procedure. No Go to step 2
- CHECK IF THE DTC IS CURRENT With the scan tool, view DTCs. Is the status Active or is STARTS SINCE SET counter set at 0 for this DTC? Yes Go to step 3 No Go to step 8
- CHECK THE PCM AND WIRING USING THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the scan tool, actuate the LC Solenoid. Monitor the LC Solenoid LED on the Transmission Simulator. Did the LC Solenoid LED on the Transmission Simulator blink on and off during actuation? Yes Go to step 4 No Go to step 5
- CHECK WIRING USING THE TRANSMISSION SIMULATOR With the scan tool, continue to actuate the LC Solenoid. While monitoring the LC Solenoid LED on the Transmission Simulator, wiggle the related wiring harness and connectors. Did the LC Solenoid LED on the Transmission Simulator continue to blink on and off during the wiggle test? Yes Replace the Transmission Solenoid/TRS Assembly per the Service Information. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Repair wiring or connectors as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- CHECK THE (T80) LC SOLENOID CONTROL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T80) LC Solenoid Control circuit between the appropriate terminal of Miller tool #8815 and the Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T80) LC Solenoid Control circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 6
- CHECK THE (T80) LC SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T80) LC Solenoid Control circuit. Is the resistance below 5.0 ohms? Yes Repair the (T80) LC Solenoid Control circuit for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 7
- CHECK THE (T80) LC SOLENOID CONTROL CIRCUIT FOR A SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T80) LC Solenoid Control circuit. Is the voltage above 0.5 volts? Yes Repair the (T80) LC Solenoid Control circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: Initially at ignition on, then every 10 seconds thereafter. The solenoids will also be tested immediately after a gear ratio error or pressure switch error is detected.
- Set Condition: Three consecutive solenoid continuity test failures, or one failure if test is run in response to a gear ratio or pressure switch error.
| Possible Causes |
|---|
| RELATED TCM POWER INPUT DTCS PRESENT |
| (T60) OD SOLENOID CONTROL CIRCUIT OPEN |
| (T60) OD SOLENOID CONTROL CIRCUIT SHORT TO GROUND |
| (T60) OD SOLENOID CONTROL CIRCUIT SHORT TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 497
Scheme 498
Scheme 499
- CHECK IF RELATED TCM DTCS ARE PRESENT With the scan tool, read DTCs Are there any TCM Power Input DTCs present also? Yes Refer to «TRANSMISSION CONTROL MODULE (TCM) - ELECTRICAL DIAGNOSTICS»(ref-352898) and perform the appropriate diagnostic procedure(s). No Go to step 2
- CHECK IF DTC IS CURRENT With the scan tool, view DTCs. Is the status Active or is the STARTS SINCE SET counter set at 0 for this DTC? Yes Go to step 3 No Go to step 8
- CHECK THE PCM AND WIRING USING THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the scan tool, actuate the OD Solenoid. Monitor the OD Solenoid LED on the Transmission Simulator. Did the OD Solenoid LED on the Transmission Simulator blink on and off during actuation? Yes Go to step 4 No Go to step 5
- CHECK WIRING USING THE TRANSMISSION SIMULATOR With the scan tool, continue to actuate the OD Solenoid. While monitoring the OD Solenoid LED on the Transmission Simulator, wiggle the related wiring harness and connectors. Did the OD Solenoid LED on the Transmission Simulator continue to blink on and off during the wiggle test? Yes Replace the Transmission Solenoid/TRS Assembly per the Service Information. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Repair wiring or connectors as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- CHECK THE (T60) OD SOLENOID CONTROL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T60) OD Solenoid Control circuit between the appropriate terminal of Miller tool #8815 and the Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T60) OD Solenoid Control circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 6
- CHECK THE (T60) OD SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T60) OD Solenoid Control circuit. Is the resistance below 5.0 ohms? Yes Repair the (T60) OD Solenoid Control circuit for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 7
- CHECK THE (T60) OD SOLENOID CONTROL CIRCUIT FOR A SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the voltage of the (T60) OD Solenoid Control circuit. Is the voltage above 0.5 volts? Yes Repair the (T60) OD Solenoid Control circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: Initially at ignition on, then every 10 seconds thereafter. The solenoids will also be tested immediately after a gear ratio error or pressure switch error is detected.
- Set Condition: Three consecutive solenoid continuity test failures, or one failure if test is run in response to a gear ratio or pressure switch error.
| Possible Causes |
|---|
| RELATED TCM POWER INPUT DTCS PRESENT |
| (T59) UD SOLENOID CONTROL CIRCUIT OPEN |
| (T59) UD SOLENOID CONTROL CIRCUIT SHORT TO GROUND |
| (T59) UD SOLENOID CONTROL CIRCUIT SHORT TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 500
Scheme 501
Scheme 502
- CHECK IF RELATED TCM DTCS ARE PRESENT With the scan tool, read DTCs Are there any TCM Power Input DTCs present also? Yes Refer to «TRANSMISSION CONTROL MODULE (TCM) - ELECTRICAL DIAGNOSTICS»(ref-352898) and perform the appropriate diagnostic procedure(s). No Go to step 2
- CHECK IF THE DTC IS CURRENT With the scan tool, read DTCs. Is the status Active or is the STARTS SINCE SET counter set at 0 for this DTC? Yes Go to step 3 No Go to step 8
- CHECK THE PCM AND WIRING USING THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the scan tool, actuate the UD Solenoid. Monitor the UD Solenoid LED on the Transmission Simulator. Did the UD Solenoid LED on the Transmission Simulator blink on and off during actuation? Yes Go to step 4 No Go to step 5
- CHECK WIRING USING THE TRANSMISSION SIMULATOR With the scan tool, continue to actuate the UD Solenoid. While monitoring the UD Solenoid LED on the Transmission Simulator, wiggle the related wiring harness and connectors. Did the UD Solenoid LED on the Transmission Simulator continue to blink on and off during the wiggle test? Yes Replace the Transmission Solenoid/TRS Assembly per the Service Information. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Repair wiring or connectors as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- CHECK THE (T59) UD SOLENOID CONTROL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T59) UD Solenoid Control circuit between the appropriate terminal of Miller special tool #8815 and the Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T59) UD Solenoid Control circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 6
- CHECK THE (T59) UD SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T59) UD Solenoid Control circuit. Is the resistance below 5.0 ohms? Yes Repair the (T59) UD Solenoid Control circuit for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 7
- CHECK THE (T59) UD SOLENOID CONTROL CIRCUIT FOR A SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T59) UD Solenoid Control circuit. Is the voltage above 0.5 volts? Yes Repair the (T59) UD Solenoid Control circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: Initially at ignition on, then every 10 seconds thereafter. The solenoids will also be tested immediately after a gear ratio error or pressure switch error is detected.
- Set Condition: Three consecutive solenoid continuity test failures, or one failure if test is run in response to a gear ratio or pressure switch error.
| Possible Causes |
|---|
| RELATED TIPM TRANSMISSION DTCS PRESENT |
| (T82) DC SOLENOID CONTROL CIRCUIT OPEN |
| (T82) DC SOLENOID CONTROL CIRCUIT SHORT TO GROUND |
| (T82) DC SOLENOID CONTROL CIRCUIT SHORT TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 503
Scheme 504
Scheme 505
- CHECK IF RELATED DTCS ARE PRESENT With the scan tool, read DTCs Are there any Transmission Control Relay or TIPM Power Control DTCs present also? Yes Refer to «TRANSMISSION CONTROL MODULE (TCM) - ELECTRICAL DIAGNOSTICS»(ref-352898) and perform the appropriate diagnostic procedure. No Go to step 2
- CHECK IF THE DTC IS CURRENT With the scan tool, read DTCs. Is the status Active or is STARTS SINCE SET counter set at 0 for this DTC? Yes Go to step 3 No Go to step 8
- CHECK THE PCM AND WIRING USING THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the scan tool, actuate the DC Solenoid. Monitor the DC Solenoid LED on the Transmission Simulator. Did the DC Solenoid LED on the Transmission Simulator blink on and off during actuation? Yes Go to step 4 No Go to step 5
- CHECK WIRING USING THE TRANSMISSION SIMULATOR With the scan tool, continue to actuate the DC Solenoid. While monitoring the DC Solenoid LED on the Transmission Simulator, wiggle the related wiring harness and connectors. Did the DC Solenoid LED on the Transmission Simulator continue to blink on and off during the wiggle test? Yes Replace the Transmission Solenoid/TRS Assembly per the Service Information. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Repair wiring or connectors as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- CHECK THE (T82) DC SOLENOID CONTROL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T82) DC Solenoid Control circuit between the appropriate terminal of Miller tool #8815 and the Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T82) DC Solenoid Control circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 6
- CHECK THE (T82) DC SOLENOID CONTROL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T82) DC Solenoid Control circuit. Is the resistance below 5.0 ohms? Yes Repair the (T82) DC Solenoid Control circuit for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 7
- CHECK THE (T82) DC SOLENOID CONTROL CIRCUIT FOR A SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool under TIPM, actuate the TCM output. Measure the voltage of the (T82) DC Solenoid Control circuit. Is the voltage above 0.5 volts? Yes Repair the (T82) DC Solenoid Control circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: The transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If there is an excessive change in the Transfer RPM in any gear.
| Possible Causes |
|---|
| (T85) TRANSFER SPEED SIGNAL CIRCUIT OPEN |
| (T13) SPEED SENSOR GROUND CIRCUIT OPEN |
| (T85) TRANSFER SPEED SIGNAL CIRCUIT SHORT TO GROUND |
| (T85) TRANSFER SPEED SIGNAL CIRCUIT SHORT TO VOLTAGE |
| (T13) SPEED SENSOR GROUND CIRCUIT SHORT TO VOLTAGE |
| TRANSFER SPEED SENSOR |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 506
Scheme 507
Scheme 508
Scheme 509
Scheme 510
- CHECK IF THE DTC IS CURRENT Start the engine in park. Raise the drive wheels off of the ground. WARNING: Properly support the vehicle. Firmly apply the brakes and place the transmission selector in drive. WARNING: Be sure to keep hands and feet clear of rotating wheels. Release the brakes and allow the drive wheels to spin freely. NOTE: The drive wheels must be turning at this point. With the scan tool, read the Transfer RPM Is the Transfer RPM below 100? Yes Go to step 2 No Go to step 8
- CHECK THE PCM AND WIRING USING THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the Transmission Simulator, set the "Input/Output Speed" switch to "ON" and the rotary switch to the "3000/1250" position. With the scan tool , read the Input and Transfer RPM. Does the Input RPM read 3000 and the Transfer RPM read 1250 (within 50 RPM)? Yes Replace the Transfer Speed Sensor per the Service Information. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 3
- CHECK THE (T85) TRANSFER SPEED SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transfer Speed Sensor harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T85) Transfer Speed Signal circuit between the appropriate terminal of Miller tool #8815 and the Transfer Speed Sensor harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T85) Transfer Speed Signal circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 4
- CHECK THE (T13) SPEED SENSOR GROUND CIRCUIT FOR AN OPEN Measure the resistance of the Speed Sensor Ground circuit between the appropriate terminal of Miller tool #8815 and the Transfer Speed Sensor harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T13) Speed Sensor Ground circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 5
- CHECK THE (T85) TRANSFER SPEED SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T85) Transfer Speed Signal circuit. Is the resistance below 5.0 ohms? Yes Repair the (T85) Transfer Speed Signal circuit for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 6
- CHECK THE (T85) TRANSFER SPEED SENSOR SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T85) Transfer Speed Signal circuit. Is the voltage above 0.5 volt? Yes Repair the (T85) Transfer Speed Signal circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 7
- CHECK THE (T13) SPEED SENSOR GROUND CIRCUIT FOR A SHORT TO VOLTAGE NOTE: Continue to actuate the TCM output. Measure the voltage of the (T13) Speed Sensor Ground circuit. Is the voltage above 0.5 volts? Yes Repair the (T13) Speed Sensor Ground circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wiring and connectors while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: The transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If there is an excessive change in the Output RPM in any gear.
| Possible Causes |
|---|
| RELATED TRANSMISSION DTCS PRESENT |
| INTERMITTENT GEAR RATIO ERRORS |
| INTERNAL TRANSMISSION |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: In any forward gear with engine speed above 1000 RPM, shortly after a shift and every minute thereafter.
- Set Condition: After a shift into a forward gear, with engine speed greater than 1000 RPM, the PCM momentarily turns on element pressure to the clutch circuits that don't have pressure to verify that the correct pressure switch closes. If the pressure switch does not close 2 times the DTC will set.
| Possible Causes |
|---|
| LOSS OF PRIME P0944 PRESENT |
| (T16) TIPM TRANSMISSION CONTROL OUTPUT CIRCUIT OPEN |
| (T81) LC PRESSURE SIGNAL CIRCUIT OPEN |
| (T81) LC PRESSURE SIGNAL CIRCUIT SHORT TO GROUND |
| (T81) LC PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| INTERNAL TRANSMISSION |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 511
Scheme 512
Scheme 513
- CHECKING FOR LOSS OF PRIME DTC With the scan tool, check for other DTCs. Is the DTC P0944 present also? Yes Refer to «TRANSMISSION CONTROL MODULE (TCM) - ELECTRICAL DIAGNOSTICS»(ref-352898) and perform the appropriate diagnostic procedure. No Go to step 2
- CHECK FOR RELATED TRANSMISSION DTCS With the scan tool, check for other DTCs. Are any of the DTCs P0731, P0733, P0734 and/or P083B present also? Yes Replace the Transmission Solenoid/TRS Assembly per the Service Information. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 3
- CHECK TO SEE IF DTC P083A IS CURRENT With the scan tool, read DTCs. Is the status Active for this DTC or is the STARTS SINCE SET counter 2 or less? Yes Go to step 4 No Go to step 9
- PCM AND WIRING Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit. NOTE: Check connectors - Clean/repair as necessary. Ignition on, engine not running. With the Transmission Simulator, turn the Pressure Switch selector switch to LC. With the scan tool, monitor the LC Pressure Switch state while pressing the Pressure Switch Test button on the Transmission Simulator. Wiggle the wires leading to the PCM while pressing and holding the Pressure Switch Test button. Did the LC Pressure Switch state change to closed and remain closed while wiggling the wires? Yes Disassemble and inspect the Valve Body per the Service Information and repair or replace as necessary. If no problems are found in «BODY»(ref-352850) , replace the Transmission Solenoid/TRS Assembly. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 5
- (T81) LC PRESSURE SIGNAL CIRCUIT OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T81) LC Pressure Switch Sense circuit from the appropriate terminal of Miller tool #8815 to the Transmission Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T81) LC Pressure Switch Sense circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 6
- (T81) LC PRESSURE SIGNAL CIRCUIT SHORT TO GROUND Measure the resistance between ground and the (T81) LC Pressure Switch Sense circuit. Is the resistance below 5.0 ohms? Yes Repair the (T81) LC Pressure Switch Sense circuit for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 7
- (T81) LC PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T81) LC Pressure Switch Sense circuit. Is the voltage above 0.5 volts? Yes Repair the (T81) LC Pressure Switch Sense circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 8
- (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT OPEN While still actuating the TCM output in the TIPM and using a 12-volt test light connected to ground, check (T16) Transmission Control Output circuit in the Transmission Solenoid/TRS Assembly harness connector. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Repair the (T16) Transmission Control Output circuit for an open or high resistance. If the fuse is open make sure to check for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: Whenever the engine is running.
- Set Condition: The DTC is set if one of the pressure switches are open or closed at the wrong time in a given gear. If the problem is identified for three successive key starts, the transmission will go into Limp-in mode and the MIL will turn on after 10 seconds of vehicle operation.
| Possible Causes |
|---|
| RELATED TCM POWER INPUT DTCS PRESENT |
| LOSS OF PRIME DTC PRESENT |
| (T81) LC PRESSURE SIGNAL CIRCUIT OPEN |
| (T81) LC PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND |
| (T81) LC PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
| GEAR | L/R | 2/4 | OD | LC | DC |
|---|---|---|---|---|---|
| R | OPEN | OPEN | OPEN | OPEN | OPEN |
| P/N | CLOSED | OPEN | OPEN | OPEN | OPEN |
| 1st | CLOSED | OPEN | OPEN | OPEN | OPEN |
| 2nd | CLOSED | OPEN | OPEN | OPEN | CLOSED |
| 3rd | OPEN | CLOSED | OPEN | CLOSED | OPEN |
| 4th Prime | OPEN | CLOSED | OPEN | OPEN | CLOSED |
| 4th | OPEN | OPEN | CLOSED | CLOSED | OPEN |
| D | OPEN | OPEN | CLOSED | OPEN | CLOSED |
| OD | OPEN | CLOSED | CLOSED | OPEN | CLOSED |
PRESSURE SWITCH STATES
- When Monitored: Whenever the engine is running.
- Set Condition: The DTC is set if the L/R pressure switch is open or closed at the wrong time in a given gear. If the problem is identified for three successive key starts, the transmission will go into Limp-in mode and the MIL will turn on after 10 seconds of vehicle operation.
| Possible Causes |
|---|
| RELATED TCM POWER INPUT DTCS PRESENT |
| LOSS OF PRIME DTC PRESENT |
| (T50) L/R PRESSURE SIGNAL CIRCUIT OPEN |
| (T50) L/R PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND |
| (T50) L/R PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
| GEAR | L/R | 2/4 | OD | LC | DC |
|---|---|---|---|---|---|
| R | OPEN | OPEN | OPEN | OPEN | OPEN |
| P/N | CLOSED | OPEN | OPEN | OPEN | OPEN |
| 1st | CLOSED | OPEN | OPEN | OPEN | OPEN |
| 2nd | CLOSED | OPEN | OPEN | OPEN | CLOSED |
| 3rd | OPEN | CLOSED | OPEN | CLOSED | OPEN |
| 4th Prime | OPEN | CLOSED | OPEN | OPEN | CLOSED |
| 4th | OPEN | OPEN | CLOSED | CLOSED | OPEN |
| D | OPEN | OPEN | CLOSED | OPEN | CLOSED |
| OD | OPEN | CLOSED | CLOSED | OPEN | CLOSED |
PRESSURE SWITCH STATES
Scheme 514
Scheme 515
Scheme 516
- CHECK IF RELATED TCM DTCS ARE PRESENT With the scan tool, read DTCs Are there any TCM Power Input DTCs present also? Yes See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(ref-353649-S23019684002010011200000) and perform the appropriate transmission diagnostic procedure. No Go to step 2
- CHECK FOR LOSS OF PRIME DTC With the scan tool, check for other DTCs. Is the DTC P0944 present also? Yes See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(ref-353649-S23019684002010011200000) and perform the appropriate transmission diagnostic procedure. No Go to step 3
- CHECK TO SEE IF P0841 IS CURRENT With the scan tool, view DTCs. Is the status active for this DTC or is the Starts Since Set counter 2 or less? Yes Go to step 4 No Go to step 8
- PCM AND WIRING Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. NOTE: Check connectors - Clean/repair as necessary. Ignition on, engine not running. With the Transmission Simulator, turn the Pressure Switch selector to L/R. With the scan tool, monitor the L/R Pressure Switch state while pressing the Pressure Switch Test button on the Transmission Simulator. Did the L/R Pressure Switch state change? Yes Replace the Transmission Solenoid/TRS Assembly in accordance with the Service Information. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 5
- (T50) L/R PRESSURE SIGNAL CIRCUIT OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T50) L/R Pressure Signal circuit from the appropriate terminal of the PCM Pinout Box 8815 and the Transmission Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 Ohms? Yes Repair the (T50) L/R Pressure Signal circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 6
- (T50) L/R PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (T50) L/R Pressure Signal circuit. Is the resistance below 5.0 Ohms? Yes Repair the (T50) L/R Pressure Signal circuit for a short to ground. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 7
- (T50) L/R PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE Remove the Transmission Control Relay. Connect a jumper wire between the (A104) B (+) circuit and (T16) Transmission Control Relay Output circuit. Ignition on, engine not running. Measure the voltage of the (T50) L/R Pressure Signal circuit. Is the voltage above 0.5 of a volt? Yes Repair the (T50) L/R Pressure Signal circuit for a short to voltage. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. With the scan tool perform Quick Learn. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set. Were there any problems found? Yes Repair as necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Test Complete.
- When Monitored: In any forward gear with engine speed above 1000 RPM, shortly after a shift and every minute thereafter.
- Set Condition: After a shift into a forward gear, with engine speed greater than 1000 RPM, the PCM momentarily turns on element pressure to the clutch circuits that don't have pressure to verify that the correct pressure switch closes. If the pressure switch does not close two times the DTC wil set.
| Possible Causes |
|---|
| LOSS OF PRIME P0944 PRESENT |
| (T16) TIPM TRANSMISSION CONTROL OUTPUT CIRCUIT OPEN |
| (T47) 2/4 PRESSURE SIGNAL CIRCUIT OPEN |
| (T47) 2/4 PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND |
| (T47) 2/4 PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS SWITCH ASSEMBLY |
| CONTAMINATED FLUID (TYPICALLY WATER CONTAMINATION) |
| VALVE BODY INTERNAL LEAKAGE |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
Scheme 517
Scheme 518
Scheme 519
- CHECKING FOR LOSS OF PRIME DTC With the scan tool, read DTCs. Is the DTC P0944 present also? Yes See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(ref-353649-S23019684002010011200000) and perform the appropriate diagnostic procedure. No Go to step 2
- CHECK FOR RELATED TRANSMISSION DTCS With the scan tool, read DTCs. Are any of the DTCs P0732, P0734 and/or P0846 present also? Yes Replace the Transmission Solenoid/TRS Assembly in accordance with the Service Information. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 3
- CHECK FOR CONTAMINATED FLUID Check the transmission fluid for water or other contamination. Is the transmission fluid contaminated? Yes Repair the cause of the transmission fluid contamination in accordance with the Service Information. No Go to step 4
- CHECK IF DTC P0845 IS CURRENT With the scan tool, read DTCs. Is the status Active or is the Starts Since Set counter 2 or less for this DTC? Yes Go to step 5 No Go to step 10
- PCM AND WIRING Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. NOTE: Check connectors - Clean/repair as necessary. Ignition on, engine not running. With the Transmission Simulator, turn the Pressure Switch selector switch to 2/4. With the scan tool, monitor the 2/4 Pressure Switch state while pressing the Pressure Switch Test button on the Transmission Simulator. Wiggle the wires leading to the PCM while pressing and holding the Pressure Switch Test button. Did the 2/4 Pressure Switch state change from open to closed when the test button was pressed, and remain closed while wiggling the wires? Yes Disassemble and inspect «BODY»(ref-352850) in accordance with the Service Information. If no problems are found in «BODY»(ref-352850) , replace the Transmission Solenoid/TRS Assembly. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 6
- (T47) 2/4 PRESSURE SIGNAL CIRCUIT OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T47) 2/4 Pressure Signal circuit between the appropriate terminal of the PCM Pinout Box 8815 and the Transmission Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 Ohms? Yes Repair the (T47) 2/4 Pressure Signal circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 7
- (T47) 2/4 PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (T47) 2/4 Pressure Signal circuit. Is the resistance below 5.0 Ohms? Yes Repair the (T47) 2/4 Pressure Signal circuit for a short to ground. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 8
- (T47) 2/4 PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T47) 2/4 Pressure Signal circuit. Is the voltage above 0.5 of a volt? Yes Repair the (T47) 2/4 Pressure Signal circuit for a short to voltage. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 9
- TRANSMISSION CONTROL OUTPUT CIRCUIT OPEN While still actuating the TCM output in the TIPM and using a 12-volt test light connected to ground, check (T16) Transmission Control Output circuit in the Transmission Solenoid/TRS Assembly harness connector. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes Replace and program the Powertrain Control Module in accordance with the Service Information. With the scan tool perform Quick Learn. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Repair the Transmission Control Output circuit for an open or high resistance. If the fuse is open make sure to check for a short to ground. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set. Were there any problems found? Yes Repair as necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Test Complete.
- When Monitored: Whenever the engine is running.
- Set Condition: The DTC is set if the 2/4 pressure switch is open or closed at the wrong time in a given gear. If the problem is identified for three successive ignition starts, the transmission will go into Limp-in mode and the MIL will turn on after 10 seconds of vehicle operation.
| Possible Causes |
|---|
| RELATED TCM POWER INPUT DTCS PRESENT |
| LOSS OF PRIME DTC PRESENT |
| (T47) 2/4 PRESSURE SIGNAL CIRCUIT OPEN |
| (T47) 2/4 PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND |
| (T47) 2/4 PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
| GEAR | L/R | 2/4 | OD | LC | DC |
|---|---|---|---|---|---|
| R | OPEN | OPEN | OPEN | OPEN | OPEN |
| P/N | CLOSED | OPEN | OPEN | OPEN | OPEN |
| 1st | CLOSED | OPEN | OPEN | OPEN | OPEN |
| 2nd | CLOSED | OPEN | OPEN | OPEN | CLOSED |
| 3rd | OPEN | CLOSED | OPEN | CLOSED | OPEN |
| 4th Prime | OPEN | CLOSED | OPEN | OPEN | CLOSED |
| 4th | OPEN | OPEN | CLOSED | CLOSED | OPEN |
| D | OPEN | OPEN | CLOSED | OPEN | CLOSED |
| OD | OPEN | CLOSED | CLOSED | OPEN | CLOSED |
PRESSURE SWITCH STATES
- When Monitored: In any forward gear with engine speed above 1000 RPM, shortly after a shift and every minute thereafter.
- Set Condition: After a shift into a forward gear, with engine speed greater than 1000 RPM, the PCM momentarily turns on element pressure to the clutch circuits that don't have pressure to verify that the correct pressure switch closes. If the pressure switch does not close 2 times the DTC sets
| Possible Causes |
|---|
| LOSS OF PRIME P0944 PRESENT |
| (T16) TIPM TRANSMISSION CONTROL OUTPUT CIRCUIT OPEN |
| (T83) DC PRESSURE SIGNAL CIRCUIT OPEN |
| (T83) DC PRESSURE SIGNAL CIRCUIT SHORT TO GROUND |
| (T83) DC PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS SWITCH ASSEMBLY |
| INTERNAL TRANSMISSION |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 520
Scheme 521
Scheme 522
- CHECKING FOR LOSS OF PRIME DTC With the scan tool, read DTCs. Is the DTC P0944 present also? Yes Refer to «TRANSMISSION CONTROL MODULE (TCM) - ELECTRICAL DIAGNOSTICS»(ref-352898) and perform the appropriate diagnostic procedure. No Go to step 2
- CHECK FOR RELATED TRANSMISSION DTCS With the scan tool, read DTCs. Are any of the DTCs P0732, P0734 and/or P084B present also? Yes Replace the Transmission Solenoid/TRS Assembly per the Service Information. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 3
- CHECK IF DTC P084A IS CURRENT With the scan tool, read DTCs. Is the status Active for this DTC or is the STARTS SINCE SET counter 2 or less? Yes Go to step 4 No Go to step 9
- PCM AND WIRING Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the Transmission Simulator, turn the Pressure Switch selector switch to DC. With the scan tool, monitor the DC Pressure Switch state while pressing the Pressure Switch Test button on the Transmission Simulator. Wiggle the wires leading to the PCM while pressing and holding the Pressure Switch Test button. Did the DC Pressure Switch state change to closed and remain closed while wiggling the wires? Yes Disassemble and inspect «BODY»(ref-352850) per the Service Information and repair or replace as necessary. If no problems are found in «BODY»(ref-352850) , replace the Transmission Solenoid/TRS Assembly. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 5
- (T83) DC PRESSURE SIGNAL CIRCUIT OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T83) DC Pressure Switch Sense circuit from the appropriate terminal of the Miller tool #8815 to the Transmission Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T83) DC Pressure Switch Sense circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 6
- (T83) DC PRESSURE SIGNAL CIRCUIT SHORT TO GROUND Measure the resistance between ground and the (T83) DC Pressure Switch Sense circuit. Is the resistance below 5.0 ohms? Yes Repair the (T83) DC Pressure Switch Sense circuit for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 7
- (T83) DC PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T83) DC Pressure Switch Sense circuit. Is the voltage above 0.5 volts? Yes Repair the (T83) DC Pressure Switch Sense circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 8
- TRANSMISSION CONTROL OUTPUT CIRCUIT OPEN While still actuating the TCM output in the TIPM and using a 12-volt test light connected to ground, check (T16) Transmission Control Output circuit in the Transmission Solenoid/TRS Assembly harness connector. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes Replace and program the Powertrain Control Module per the Service Information. With the scan tool perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Repair the Transmission Control Output circuit for an open or high resistance. If the fuse is open make sure to check for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: Whenever the engine is running.
- Set Condition: The DTC is set if one of the pressure switches are open or closed at the wrong time in a given gear. If the problem is identified for three successive key starts, the transmission will go into Limp-in mode and the MIL will turn on after 10 seconds of vehicle operation.
| Possible Causes |
|---|
| RELATED TCM POWER INPUT DTCS PRESENT |
| LOSS OF PRIME DTC PRESENT |
| (T83) DC PRESSURE SIGNAL CIRCUIT OPEN |
| (T83) DC PRESSURE SIGNAL CIRCUIT SHORT TO GROUND |
| (T83) DC PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
| GEAR | L/R | 2/4 | OD | LC | DC |
|---|---|---|---|---|---|
| R | OPEN | OPEN | OPEN | OPEN | OPEN |
| P/N | CLOSED | OPEN | OPEN | OPEN | OPEN |
| 1st | CLOSED | OPEN | OPEN | OPEN | OPEN |
| 2nd | CLOSED | OPEN | OPEN | OPEN | CLOSED |
| 3rd | OPEN | CLOSED | OPEN | CLOSED | OPEN |
| 4th Prime | OPEN | CLOSED | OPEN | OPEN | CLOSED |
| 4th | OPEN | OPEN | CLOSED | CLOSED | OPEN |
| D | OPEN | OPEN | CLOSED | OPEN | CLOSED |
| OD | OPEN | CLOSED | CLOSED | OPEN | CLOSED |
PRESSURE SWITCH STATES
- When Monitored: Continuously while driving in a forward gear.
- Set Condition: The Powertrain Control Module (PCM) continuously monitors Actual Line Pressure and compares it to Desired Line Pressure. If the Actual Line Pressure is more than 5 psi below Desired Line Pressure while the PCS duty cycle is at or near its minimum value, this DTC will set.
| Possible Causes |
|---|
| CHECK FOR RELATED DTCS |
| LOW FLUID LEVEL |
| (F856) 5-VOLT SUPPLY CIRCUIT OPEN |
| (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND |
| (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE |
| (T118) LP VFS CONTROL CIRCUIT SHORTED TO ANOTHER CIRCUIT |
| INTERNAL TRANSMISSION |
| LINE PRESSURE SENSOR |
| CRACKED, PLUGGED, OR MIS-INSTALLED PRIMARY OIL FILTER |
| STUCK OR STICKING MAIN REGULATOR VALVE |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
Scheme 523
Scheme 524
Scheme 525
Scheme 526
- CHECK FOR RELATED DTCS With the scan tool, read DTCs. Is the DTC P0932 present also? Yes See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(ref-353649-S23019684002010011200000) and perform the appropriate diagnostic procedure. No Go to step 2
- CHECK IF THE DTC IS CURRENT With the scan tool, check the Starts Since Set counter for P0868. NOTE: This counter only applies to the last DTC set. Is the Starts Since Set COUNTER 2 or less? Yes Go to step 3 No Go to step 10
- CHECK THE PCM AND WIRING Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. On the Transmission Simulator select the "OFF" position of the "Input/Output Speed" switch. Ignition on, engine not running. With the scan tool, monitor the Line Pressure during the following steps. Using the Transmission Simulator, set the rotary knob to each of the three line pressure positions. NOTE: All three scan tool Line Pressure readings should be steady and ± 14 kPa or 2.0 psi (0.2 of a volt) of the reading specified on the Transmission Simulator. Did the Line Pressure read within ± 14 kPa or 2.0 psi (0.2 of a volt) in all three positions? Yes Go to step 4 No Go to step 6
- CHECK THE LINE PRESSURE SENSOR Turn the ignition off to the lock position. Disconnect the Transmission Simulator 8333A and reconnect all previously disconnected connectors. Install a Pressure Gauge, 0 to 2000 kPa or 0 to 300 psi to the Line Pressure test port. Start the engine in park. Monitor the line pressure readings of both the scan tool and the pressure gauge and compare the two readings. Is the line pressure gauge reading within 34 kPa or 5 psi of the scan tool reading? Yes Go to step 5 No Replace the Transmission Solenoid/TRS Assembly in accordance with the Service Information. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK FOR A PLUGGED TRANSMISSION OIL FILTER Turn the ignition off to the lock position. Remove and inspect the Transmission Oil Pan for excessive debris in accordance with the Service Information. Remove and inspect the Transmission Oil Filter in accordance with the Service Information. Does the Oil Pan contain excessive debris and/or is the Transmission Oil Filter plugged? Yes Repair as necessary. If the Transmission Oil Filter is plugged or there is excessive debris, refer to the Service Information for the proper Hydraulic repair procedure. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Repair internal transmission and inspect the Transmission Oil Pump in accordance with the Service Information and replace if necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the PCM C1 harness connector and connect the PCM Pinout Box 8815. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis. Disconnect the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. Measure the voltage of the (F856) 5-volt Supply circuit. Is the voltage above 5.5 volts? Yes Repair the (F856) 5-volt Supply circuit for a short to voltage. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 7
- CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Measure the resistance of the (F856) 5-volt Supply circuit between the Transmission Solenoid/TRS Assembly harness connector and the appropriate terminal of the PCM Pinout Box 8815. Is the resistance above 5.0 Ohms? Yes Repair the (F856) 5-volt Supply circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 8
- CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (F856) 5-volt Supply circuit. Is the resistance below 5.0 Ohms? Yes Repair the (F856) 5-volt Supply circuit for a short to ground. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 9
- CHECK THE (T118) LP VFS CONTROL CIRCUIT FOR A SHORT TO ANOTHER CIRCUIT Turn the ignition off to the lock position. Disconnect all PCM harness connectors. Measure the resistance between the (T118) Pressure Control Line Pressure circuit and all other circuits in the Transmission Solenoid/TRS Assembly harness connector. Is the resistance below 5.0 Ohms between the (T118) Pressure Control Line Pressure circuit and any other circuit(s) in the Line Pressure Sensor/Variable Force Solenoid Assembly harness connector? Yes Repair the (T118) Pressure Control Line Pressure circuit for a short to another circuit(s). Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set. Where there any problems found? Yes Repair as necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: Continuously while driving in a forward gear.
- Set Condition: The Powertrain Control Module (PCM) continuously monitors Actual Line Pressure. If the Actual Line Pressure reading is greater than the highest Desired Line Pressure ever used in the current gear, while the Pressure Control Solenoid duty cycle is at or near its maximum value (which should result in minimum line pressure), the DTC will set.
| Possible Causes |
|---|
| (F856) 5-VOLT SUPPLY CIRCUIT OPEN |
| LINE PRESSURE SENSOR CONNECTION |
| (T118) LP VFS CONTROL CIRCUIT OPEN |
| (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND |
| (T118) LP VFS CONTROL CIRCUIT SHORTED TO GROUND |
| TRANSMISSION CONTROL RELAY OUTPUT CIRCUIT |
| LINE PRESSURE SENSOR |
| STUCK OR STICKING MAIN REGULATOR VALVE |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
Scheme 527
Scheme 528
- CHECK FOR RELATED DTCS With the scan tool, check for other DTCs. Are there any line pressure sensor or transmission relay output DTCs present also? Yes See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(ref-353649-S23019684002010011200000) and perform the appropriate diagnostic procedure. No Go to step 2
- CHECK IF THE DTC IS CURRENT With the scan tool, check the Starts Since Set counter for P0869. Is the Starts Since Set COUNTER 2 or less? Yes Go to step 3 No Go to step 9
- CHECK THE PCM AND WIRING Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. With the Transmission Simulator select the "OFF" position on the "Input/Output Speed" switch. Ignition on, engine not running. With the scan tool, monitor the Line Pressure during the following step. Using the Transmission Simulator, set the rotary switch to each of the three line pressure positions. NOTE: All three scan tool Line Pressure readings should be steady and ± 14 kPa or 2.0 psi (0.2 of a volt) of the reading specified on the Transmission Simulator. Did the Line Pressure read within ± 14 kPa or 2.0 psi (0.2 of a volt) in all three positions? Yes Go to step 4 No Go to step 5
- CHECK THE LINE PRESSURE SENSOR CALIBRATION Turn the ignition off to the lock position. Disconnect the Transmission Simulator 8333A and the Electronic Transmission Adapter kit and reconnect all previously disconnected connectors. Install the Line Pressure Gauge C-3293, 0 to 2000 kPa or 0 to 300 psi in the Line Pressure test port. Start the engine in park. Monitor the Line Pressure readings on the scan tool and the pressure gauge. Compare the Line Pressure readings between the scan tool and the pressure gauge. Is the pressure gauge reading within 34 kPa or 5 psi of the scan tool reading? Yes Repair the internal transmission and inspect the Transmission Oil Pump in accordance with the Service Information and replace if necessary. If no problem is found, replace the Pressure Control Solenoid. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Replace the Line Pressure Sensor in accordance with the service information. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE (T118) PRESSURE CONTROL LINE PRESSURE CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the Transmission Simulator 8333A. Disconnect the Powertrain Control Module C4 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T118) Pressure Control Solenoid Control circuit between the Transmission Solenoid/TRS Assembly harness connector and the appropriate terminal of the PCM Pinout Box 8815. Is the resistance above 5.0 Ohms? Yes Repair the (T118) LP VFS Control circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 6
- CHECK THE (T118) LP VFS CONTROL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T118) LP VFS Control circuit. Is the resistance below 5.0 Ohms? Yes Repair the (T118) LP VFS Control circuit for a short to ground. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 7
- CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C1 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (F856) 5-volt Supply circuit between the Transmission Solenoid/TRS Assembly harness connector to the appropriate terminal of the PCM Pinout Box 8815. Is the resistance above 5.0 Ohms? Yes Repair the (F856) 5-volt Supply circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 8
- CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (F856) 5-volt Supply circuit. Is the resistance below 5.0 Ohms? Yes Repair the (F856) 5-volt Supply circuit for a short to ground. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set. Where there any problems found? Yes Repair as necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Test Complete.
- When Monitored: In any forward gear with engine speed above 1000 RPM, shortly after a shift and every minute thereafter.
- Set Condition: After a shift into a forward gear, with engine speed greater than 1000 RPM, the Powertrain Control Module (PCM) momentarily turns on element pressure to the clutch circuits that don't have pressure to identify the correct pressure switch closes. If the pressure switch does not close two times the DTC sets.
| Possible Causes |
|---|
| LOSS OF PRIME P0944 PRESENT |
| RELATED TCM POWER INPUT DTCS PRESENT |
| (T9) OD PRESSURE SIGNAL CIRCUIT OPEN |
| (T9) OD PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND |
| (T9) OD PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| TRANSMISSION SOLENOID/PRESSURE SWITCH ASSEMBLY |
| CONTAMINATED FLUID (TYPICALLY WATER CONTAMINATION) |
| VALVE BODY INTERNAL LEAKAGE |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
Scheme 529
Scheme 530
Scheme 531
- CHECKING FOR LOSS OF PRIME DTC With the scan tool, read DTCs. Is the DTC P0944 present also? Yes See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(ref-353649-S23019684002010011200000) and perform the appropriate diagnostic procedure. No Go to step 2
- CHECK FOR RELATED TRANSMISSION DTCS With the scan tool, read DTCs. Are any of the DTCs P0732, P0734 and/or P0846 present also? Yes Replace the Transmission Solenoid/TRS Assembly in accordance with the Service Information. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 3
- CHECK IF DTC P0870 IS CURRENT With the scan tool, read DTCs. Is the status Active or is the Starts Since Set counter 2 or less for this DTC? Yes Go to step 4 No Go to step 9
- CHECK THE PCM AND WIRING WITH THE TRANSMISSION SIMULATOR Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the Transmission Simulator, turn the Pressure Switch selector switch to OD. With the scan tool, monitor the OD Pressure Switch state while pressing the Pressure Switch Test button on the Transmission Simulator. Wiggle the wires leading to the PCM while pressing and holding the Pressure Switch Test button. Did the OD Pressure Switch state change from open to closed and remain closed while wiggling the wires? Yes Disassemble and inspect «BODY»(ref-352850) in accordance with the Service Information and repair or replace as necessary. If no problems are found in «BODY»(ref-352850) , replace the Transmission Solenoid/TRS Assembly. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 5
- CHECK THE (T9) OD PRESSURE SIGNAL CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector. Disconnect the Transmission Solenoid/TRS Assembly harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (T9) OD Pressure Signal circuit between the appropriate terminal of the PCM Pinout Box 8815 and the Transmission Solenoid/TRS Assembly harness connector. Is the resistance above 5.0 Ohms? Yes Repair the (T9) OD Pressure Signal circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 6
- CHECK THE (T9) OD PRESSURE SIGNAL CIRCUIT FOR A SHORT TO GROUND Measure the resistance between ground and the (T9) OD Pressure Signal circuit. Is the resistance below 5.0 Ohms? Yes Repair the (T9) OD Pressure Signal circuit for a short to ground. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 7
- CHECK THE (T9) OD PRESSURE SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T9) OD Pressure Signal circuit. Is the voltage above 0.5 of a volt? Yes Repair the (T9) OD Pressure Signal circuit for a short to voltage. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 8
- CHECK THE (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT OR AN OPEN While still actuating the TCM output in the TIPM with the scan tool, and using a 12-volt test light connected to ground, check (T16) Transmission Control Relay Output circuit in the Transmission Solenoid/TRS Assembly harness connector. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Repair the (T16) Transmission Control Output circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set. Were there any problems found? Yes Repair as necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Test Complete.
- When Monitored: Whenever the engine is running.
- Set Condition: The DTC is set if the OD pressure switch is open or closed at the wrong time in a given gear. If the P0706 fault condition is also present, the transmission will go into Limp-in mode and the MIL will turn on.
| Possible Causes |
|---|
| RELATED TCM POWER INPUT DTCS PRESENT |
| LOSS OF PRIME DTC PRESENT |
| (T9) OD PRESSURE SIGNAL CIRCUIT OPEN |
| (T9) OD PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND |
| (T9) OD PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
| GEAR | L/R | 2/4 | OD | LC | DC |
|---|---|---|---|---|---|
| R | OPEN | OPEN | OPEN | OPEN | OPEN |
| P/N | CLOSED | OPEN | OPEN | OPEN | OPEN |
| 1st | CLOSED | OPEN | OPEN | OPEN | OPEN |
| 2nd | CLOSED | OPEN | OPEN | OPEN | CLOSED |
| 3rd | OPEN | CLOSED | OPEN | CLOSED | OPEN |
| 4th Prime | OPEN | CLOSED | OPEN | OPEN | CLOSED |
| 4th | OPEN | OPEN | CLOSED | CLOSED | OPEN |
| D | OPEN | OPEN | CLOSED | OPEN | CLOSED |
| OD | OPEN | CLOSED | CLOSED | OPEN | CLOSED |
PRESSURE SWITCH STATES
- When Monitored: When the ignition is turned from "OFF" position to "RUN" position and/or the ignition is turned from "START" position to "RUN" position.
- Set Condition: This DTC is set when there is less than 3.0 volts present at the transmission control output circuits located in the Powertrain Control Module (PCM) when the Transmission Control System request the power up of those circuits. Note: Due to the integration of the Transmission Control Module and the Powertrain Control Module, both systems have their own power and ground circuits. .
| Possible Causes |
|---|
| RELATED TIPM DTCS |
| (T15) TRANSMISSION CONTROL CIRCUIT SHORT TO GROUND |
| (T15) TRANSMISSION CONTROL CIRCUIT OPEN |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 532
Scheme 533
- CHECK IF THE DTC P0882 IS CURRENT With the scan tool, Check the STARTS SINCE SET counter for P0882. NOTE: This counter only applies to the last DTC set. Is the STARTS SINCE SET counter equal to 0? Yes Go to step 2 No Go to step 5
- CHECK FOR TIPM RELATED DTCS With the scan tool, check TIPM DTCs. Are there any TCM TIPM DTCs present? Yes Refer to «TRANSMISSION CONTROL MODULE (TCM) - ELECTRICAL DIAGNOSTICS»(ref-352898) and perform the appropriate diagnostic procedure(s). No Go to step 3
- CHECK THE (T15) TRANSMISSION CONTROL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector and connect Miller tool #8815. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis. Disconnect the TIPM C1 harness connector. Measure the resistance between ground and the (T15) Transmission Control circuit. Is the resistance below 5.0 ohms? Yes Repair the (T15) Transmission Control circuit for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 4
- CHECK THE (T15) TRANSMISSION CONTROL CIRCUIT FOR AN OPEN Measure the resistance of the (T15) Transmission Control circuit between the TIPM C1 harness connector and the appropriate terminal of Miller tool #8815. Is the resistance above 5.0 ohms? Yes Repair the (T15) Transmission Control circuit for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- CHECK THE WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Where there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: When the ignition is turned from "OFF" position to "RUN" position and/or the ignition is turned from "START" position to "RUN" position.
- Set Condition: This DTC is set if the Powertrain Control Module senses greater than 3.0 volts on the Transmission Control Relay Output circuits prior to a request from the PCM to TIPM to energize the Transmission Output circuits.
| Possible Causes |
|---|
| TIPM DTCS PRESENT |
| (T15) TRANSMISSION CONTROL CIRCUIT SHORT TO VOLTAGE |
| (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT SHORT VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 534
Scheme 535
- CHECK FOR TCM TIPM DTCS With the scan tool under TIPM, check for TCM Power Control DTCs. Are there any TIPM TCM Power Control DTCS present? Yes Refer to «TRANSMISSION CONTROL MODULE (TCM) - ELECTRICAL DIAGNOSTICS»(ref-352898) and perform the appropriate diagnostic procedure(s). No Go to step 2
- CHECK IF DTC P0883 IS CURRENT With the scan tool, check the STARTS SINCE SET counter. NOTE: This counter only applies to the last DTC set. Is the STARTS SINCE SET counter set to 0? Yes Go to step 3 No Go to step 6
- CHECK THE (T16) TRANSMISSION OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector and connect Miller tool #8815. Disconnect the TIPM C2 harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis. Ignition on, engine not running. Measure the voltage of the (T16) Transmission Control Output circuits in the Miller tool #8815. Is the voltage above 0.5 volts on any (T16) Transmission Control Output circuit? Yes Go to step 4 No Go to step 5
- CHECK THE TRANSMISSION SOLENOID/TRS ASSEMBLY Turn the ignition off to the lock position. Disconnect the Transmission Solenoid/TRS Assembly harness connector. Ignition on, engine not running. Measure the voltage of the (T16) Transmission Control Output circuits in the Miller tool #8815. Is the voltage above 0.5 volts? Yes Repair the (T16) Transmission Control Output circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Replace the Transmission Solenoid/TRS Assembly per the Service Information. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- CHECK THE (T15) TRANSMISSION CONTROL CIRCUIT FOR A SHORT TO VOLTAGE Measure the voltage of the (T15) Transmission Control circuit. Is the voltage above 0.5 volts? Yes Repair the (T15) Transmission Control circuit for a short to voltage. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- CHECK WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Where there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: One time after each controller reset. Note: the Transmission Control Module is integrated with Powertrain Control Module. The Transmission Control Module has separate powers and grounds specifically to its portion of the PCM.
- Set Condition: This DTC will set if the PCM powers up and senses the vehicle in a valid forward gear (no PRNDL DTCs) with an output speed above 800 RPM, approximately 32 Km/h or 20 mph.
| Possible Causes |
|---|
| INTERMITTENT POWER AND GROUND CIRCUITS |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: When the ignition is turned from "OFF" position to "RUN" position and/or the ignition is turned from "START" position to "RUN" position.
- Set Condition: This DTC is set when there is less than 3.0 volts present at the transmission control output circuits located in the Powertrain Control Module (PCM) when the Transmission Control System request the power up of those circuits. Note: Due to the integration of the Transmission Control Module and the Powertrain Control Module, both systems have their own power and ground circuits. .
| Possible Causes |
|---|
| RELATED TIPM DTCS |
| (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT OPEN |
| (T15) TRANSMISSION CONTROL CIRCUIT SHORT TO GROUND |
| (T15) TRANSMISSION CONTROL CIRCUIT OPEN |
| TRANSMISSION CONTROL RELAY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: One time after a reset (ignition key turned to the RUN position or after cranking engine).
- Set Condition: A fault is set if voltage greater than 4.5 volts is detected for 7 msec on any of the pressure switch circuits before the relay is energized. The transmission is placed in Limp-In. The MIL is on after 10 seconds of vehicle operation.
| Possible Causes |
|---|
| (T47) 2/4 PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE |
| (T50) L/R PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE |
| (T9) OD PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE |
| (T83) DC PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE |
| (T81) LC PRESSURE SIGNAL CIRCUIT SHORT TO VOLTAGE |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: When the ignition is turned from "OFF" position to "RUN" position and/or the ignition is turned from "START" position to "RUN" position.
- Set Condition: This DTC is set if the Powertrain Control Module senses greater than 3.0 volts on the Transmission Control Relay Output circuits prior to a request from the PCM to TIPM to energize the Transmission Output circuits.
| Possible Causes |
|---|
| TIPM DTCS PRESENT |
| (T15) TRANSMISSION CONTROL CIRCUIT SHORT TO VOLTAGE |
| (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT SHORT VOLTAGE |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Each transition from full EMCC to partial EMCC for A/C bump prevention.
- Set Condition: DTC set if 20 occurrences of a turbine acceleration sum. Fault Set Time: 20 transitions from full EMCC to partial EMCC. Transmission will not use partial EMCC. Established for A/C bump prevention.
| Possible Causes |
|---|
| WORN OUT/ BURNT TRANSAXLE FLUID |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Continuously with the ignition on, engine running, with the transmission in gear.
- Set Condition: The PCM continuously monitors Actual Line Pressure and compares it to Desired Line Pressure. If the Actual Line Pressure reading is more than 172.4 kPa (25 psi) higher than the Desired Line Pressure, but is less than the highest Line Pressure ever used in the current gear, the DTC sets.
| Possible Causes |
|---|
| RELATED DTCS PRESENT |
| LINE PRESSURE CONNECTOR AND WIRING |
| LINE PRESSURE SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: Continuously with the ignition on and engine running.
- Set Condition: This DTC will set when the monitored Line Pressure Sensor voltage is less than or equal to 0.35 of a volt for 0.18 of a second.
| Possible Causes |
|---|
| (F856) 5-VOLT SUPPLY CIRCUIT OPEN |
| (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND |
| (T38) LINE PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND |
| LINE PRESSURE SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
Scheme 536
- CHECK IF DTC IS CURRENT With the scan tool, check the Starts Since Set counter for P0934. NOTE: This counter only applies to the last DTC set. Is the Starts Since Set counter 2 or less? Yes Go to step 2 No Go to step 6
- CHECK THE PCM AND WIRING Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the scan tool, under Transmission Sensors, monitor the Line Pressure. Using the Transmission Simulator, set the rotary switch to each of the three line pressure positions. NOTE: All three scan tool Line Pressure readings should be steady and ± 14 kPa or 2.0 psi of the reading specified on the Transmission Simulator. Did the Line Pressure read within ± 14 kPa or 2.0 psi in all three positions? Yes Replace the Line Pressure Sensor in accordance with the Service Information. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 3
- CHECK THE (T38) LINE PRESSURE SIGNAL CIRCUIT FOR A SHORT TO GROUND Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector and connect the PCM Pinout Box 8815. Disconnect the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis. Measure the resistance between ground and the (T38) Line Pressure Sensor Signal circuit. Is the resistance below 5.0 Ohms? Yes Repair the (T38) Line Pressure Sensor Signal circuit for a short to ground. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 4
- CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR AN OPEN Disconnect the PCM C1 harness connector and connect the PCM Pinout Box 8815. Measure the resistance of the (F856) 5-volt Supply circuit between Transmission Solenoid/TRS Assembly harness connector and the appropriate terminal of the PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 5 No Repair the (F856) 5-volt Supply circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE (F856) 5-VOLT SUPPLY CIRCUIT FOR A SHORT TO GROUND Disconnect the PCM C1 harness connector and connect the PCM Pinout Box 8815. Measure the resistance between ground and the (F856) 5-volt Supply circuit. Is the resistance below 5.0 Ohms? Yes Repair the (F856) 5-volt Supply circuit for a short to ground. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK THE WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set. Where there any problems found? Yes Repair as necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Test Complete.
- When Monitored: Continuously with ignition on and engine running.
- Set Condition: This DTC will set if the monitored Line Pressure Sensor voltage is greater than or equal to 4.75 volts for the period of 0.18 of a second.
| Possible Causes |
|---|
| (T38) LINE PRESSURE SIGNAL CIRCUIT OPEN |
| (K900) SENSOR GROUND CIRCUIT OPEN |
| (T38) LINE PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| LINE PRESSURE SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
Scheme 537
Scheme 538
- CHECK TO SEE IF DTC IS CURRENT With the scan tool, Check the Starts Since Set counter for P0935. NOTE: This counter only applies to the last DTC set. Is the Starts Since Set counter 2 or less? Yes Go to step 2 No Go to step 6
- CHECK THE PCM AND WIRING Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. Install the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the scan tool, monitor the Line Pressure. Using the Transmission Simulator, set the rotary switch to each of the three line pressure positions. NOTE: All three scan tool Line Pressure readings should be steady and ± 14 kPa or 2.0 psi of the reading specified on the Transmission Simulator. Did the Line Pressure read within ± 14 kPa or 2.0 psi in all three positions? Yes Replace the Line Pressure Sensor in accordance with the Service Information. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 3
- CHECK THE (K900) SENSOR GROUND CIRCUIT FOR AN OPEN Turn the ignition off to the lock position. Disconnect the Transmission Simulator 8333A and the Electronic Transmission Adapter kit. Disconnect the PCM C2 harness connector and connect the PCM Pinout Box 8815. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install the PCM Pinout Box 8815 to perform diagnosis. Measure the resistance of the (K900) Sensor Ground circuit from the Transmission Solenoid/TRS Assembly harness connector to the appropriate terminal of the PCM Pinout Box 8815. Is the resistance above 5.0 Ohms? Yes Repair the (K900) Sensor Ground circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 4
- CHECK THE (T38) LINE PRESSURE SIGNAL CIRCUIT FOR AN OPEN Disconnect the PCM C4 harness connector and connect the PCM Pinout Box 8815. Measure the resistance of the (T38) Line Pressure Signal circuit from the Transmission Solenoid/TRS Assembly harness connector to the appropriate terminal of the PCM Pinout Box 8815. Is the resistance above 5.0 Ohms? Yes Repair the (T38) Line Pressure Signal circuit for an open. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Go to step 5
- CHECK THE (T38) LINE PRESSURE SIGNAL CIRCUIT FOR A SHORT TO VOLTAGE Ignition on, engine not running. With the scan tool in the TIPM, actuate the TCM output. Measure the voltage of the (T38) Line Pressure Sensor Signal circuit. Is the voltage above 5.5 volts? Yes Repair the (T38) Line Pressure Signal circuit for a short to voltage. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace and program the PCM in accordance with the Service Information. With the scan tool, perform Quick Learn. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) .
- CHECK WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the Event Data to help identify the conditions in which the DTC was set. Where there any problems found? Yes Repair as necessary. Perform the 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) . No Test Complete.
- When Monitored: Every 350 msec
- Set Condition: If the transmission begins to slip in any forward gear, and the pressure switch or switches that should be closed for a given gear are open, a loss of prime test begins. All available elements (in 1st gear LR, 2/4 and OD, in 2nd, 3rd, and 4th gear 2/4 and OD) are turned on by the Powertrain Control Module (PCM) to see if pump prime exists. The code is set if none of the pressure switches respond. The PCM will continue to run the loss of prime test until pump pressure returns. The vehicle will not move or the transmission will slip. Normal operation will continue if pump prime returns.
| Possible Causes |
|---|
| LOW TRANSMISSION FLUID LEVEL |
| SHIFT LEVER POSITION |
| CRACKED, BROKEN, OR PLUGGED TRANSMISSION FILTER |
| STUCK REGULATOR VALVE |
| TRANSMISSION OIL PUMP |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: Whenever the engine is running.
- Set Condition: The transmission is not in the AutoStick® position and the upshift or downshift is reporting closed - below 0.71 of a volt or if both switches are reported closed at the same time.
| Possible Causes |
|---|
| AUTOSTICK® SWITCH |
| (T44) AUTOSTICK® DOWNSHIFT SIGNAL CIRCUIT SHORTED TO GROUND |
| (T5) AUTOSTICK® UPSHIFT SIGNAL CIRCUIT SHORTED TO GROUND |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: In any forward gear with engine speed above 1000 RPM, shortly after a shift and every minute thereafter.
- Set Condition: After a shift into a forward gear, with engine speed greater than 1000 RPM, the Powertrain Control Module (PCM) momentarily turns on element pressure to the clutch circuits that do not have pressure to identify that the correct pressure switch closes. If the pressure switch does not close two times the DTC sets.
| Possible Causes |
|---|
| CONDITION P0992 PRESENT |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: After a reset (ignition turned to the RUN position).
- Set Condition: The checksum of the battery backed RAM does not match the stored checksum. Set Time: Less than 7 msec.
| Possible Causes |
|---|
| BATTERY WAS DISCONNECTED |
| PCM WAS REPLACED OR DISCONNECTED |
| QUICK LEARN WAS PERFORMED |
| (A931) FUSED B(+) CIRCUIT TO PCM OPEN |
| (Z902) GROUND CIRCUIT OPEN |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 539
Scheme 540
- BATTERY WAS DISCONNECTED Has the battery been disconnected, lost it's charge, or been replaced recently? Yes Disconnecting or replacing the battery will set this DTC. Erase the DTC. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 2
- WAS QUICK LEARN PERFORMED Has a Quick Learn procedure been performed? Yes Performing Quick Learn will set this DTC. Erase the DTC. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 3
- PCM REPLACED OR DISCONNECTED Has the PCM been replaced or disconnected? Yes Replacing or disconnecting the PCM will set this DTC. Erase the DTC. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Go to step 4
- CHECK THE (A931) FUSED B(+) CIRCUIT Turn the ignition off to the lock position. Disconnect the PCM C1 harness connector. NOTE: Check connectors - Clean/repair as necessary. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special tool #8815 to perform diagnosis. Using a 12-volt test light connected to ground, check the (A931) Fused B(+) circuit. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly? Yes Go to step 5 No Repair the (A931) Fused B(+) circuit for an open. If the fuse is open make sure to check for a short to ground. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- (Z902) GROUND CIRCUITS Turn the ignition off to the lock position. Disconnect the PCM C4 harness connector and connect Miller tool #8815. Using a 12-volt test light connected to 12-volts, check the (Z902) Ground circuits in the appropriate terminals of Miller tool #8815. NOTE: The test light must illuminate brightly. Compare the brightness to that of a direct connection to the battery. Does the test light illuminate brightly for all of the ground circuits? Yes Go to step 6 No Repair the Ground circuits for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: Ignition on, engine running with the gear shift selector in a valid forward gear.
- Set Condition: This DTC sets whenever Transmission control system detects the manual valve is in the T2 range when it should be in OD. This is mainly an informational DTC.
| Possible Causes |
|---|
| RELATED TRANSMISSION DTCS PRESENT |
| CUSTOMER DRIVING HABITS |
| MIS-ADJUSTED SHIFTER CABLE |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: The Transmission gear ratio is monitored continuously while the transmission is in gear.
- Set Condition: If the ratio of the Input RPM to the Output RPM does not match the current gear ratio when compared to the known gear ratio.
| Possible Causes |
|---|
| RELATED TRANSMISSION DTCS PRESENT |
| INTERMITTENT GEAR RATIO ERRORS |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| INTERNAL TRANSMISSION |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Continuously with ignition on.
- Set Condition: If the transmission has been operating in an open-loop line pressure control for 3220 kilometers (2000 miles) or 1000 2-3 upshifts.
| Possible Causes |
|---|
| LINE PRESSURE DTCS PRESENT |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Whenever the engine is running. The LR Clutch Volume Index (CVI) is updated during a 3-1 or 2-1 manual downshift with throttle angle below 5 degrees. Transmission temperature must be at least 43° C (110° F).
- Set Condition: When the LR Clutch Volume Index (CVI) falls below a calibrated value.
| Possible Causes |
|---|
| HYDRAULIC LEAK IN THE VALVE BODY |
| BROKEN L/R CLUTCH PISTON RETURN SPRING OR SPRING RETAINERS |
| BROKEN L/R ACCUMULATOR SPRING(S) |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Whenever the engine is running. The 2/4 Clutch Volume Index (CVI) is updated during a 3-1 or 2-1 manual downshift with throttle angle below 5 degrees. Transmission temperature must be at least 43° C (110° F).
- Set Condition: When the 2/4 Clutch Volume Index (CVI) falls below a calibrated value.
| Possible Causes |
|---|
| HYDRAULIC LEAK IN THE VALVE BODY |
| BROKEN 2/4 CLUTCH PISTON RETURN SPRING OR SPRING RETAINERS |
| BROKEN 2/4 ACCUMULATOR SPRING(S) |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Whenever the engine is running. The OD Clutch Volume Index (CVI) is updated during a 2-3 upshift with throttle angle between 10 and 54 degrees. Transmission temperature must be at least 43° C (110° F).
- Set Condition: When the OD CVI falls below a calibrated value.
| Possible Causes |
|---|
| HYDRAULIC LEAK IN THE VALVE BODY |
| BROKEN OD ACCUMULATOR SPRING |
| BROKEN OD/REV PISTON BELLEVILLE SPRING OR DISLODGED SNAP RING |
| INTERNAL LEAKAGE IN PUMP ASSEMBLY |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Prior to a shift into 1st gear.
- Set Condition: Transmission temperature must be hot. DTC is set after six unsuccessful attempts to shift into 1st gear.
| Possible Causes |
|---|
| RELATED DTC P0841 PRESENT |
| (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT OPEN |
| (T50) L/R PRESSURE SIGNAL CIRCUIT OPEN |
| (T50) L/R PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND |
| (T50) L/R PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| STUCK SOLENOID SWITCH VALVE OR PLUGS |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: Every 7 ms when doing PEMCC or FEMCC.
- Set Condition: Must be in partial or full EMCC. The DTC is set if L/R pressure is detected high for the fourth time.
| Possible Causes |
|---|
| RELATED DTC P0841 PRESENT |
| EVENT DATA SHOWS TRS CODE TR2 - SHIFT LEVER OR MANUAL CONTROL VALVE IN T2 TRANSITION ZONE |
| SHIFTER CABLE OUT OF ADJUSTMENT |
| SOLENOID SWITCH VALVE STICKING IN ITS BORE |
| (T16) TRANSMISSION CONTROL OUTPUT CIRCUIT OPEN |
| (T50) L/R PRESSURE SIGNAL CIRCUIT OPEN |
| (T50) L/R PRESSURE SIGNAL CIRCUIT SHORTED TO GROUND |
| (T50) L/R PRESSURE SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| VALVE BODY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .
- When Monitored: After a Gear Ratio Error code is stored.
- Set Condition: After a Gear Ratio Error DTC has already been set. The DTC is set if the fault happened within 1.3 seconds of a shift. The DTC set time will vary from 1.214 seconds to 15 seconds.
| Possible Causes |
|---|
| FAULT AFTER SHIFT |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Every 7ms after a controller reset with transmission in neutral.
- Set Condition: After a PCM reset in neutral and Input and Output sensor ratio equals 2.50 to 1.0 ± 50.0 RPM.
| Possible Causes |
|---|
| SPEED SENSOR GROUND CIRCUIT OPEN |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
Scheme 541
- PCM AND WIRING Turn the ignition off to the lock position. Remove the Starter Solenoid relay from the TIPM. CAUTION: Removal of the Starter Solenoid relay from the TIPM will prevent the vehicle from being started in gear. WARNING: The Starter Solenoid relay must be removed from the TIPM. Failure to do so can result in possible serious or fatal injury. NOTE: Check connectors - Clean/repair as necessary. Install the Transmission Simulator, Miller tool #8333A and the Electronic Transmission Adapter kit. Ignition on, engine not running. With the Transmission Simulator, set the "Input/Output Speed" switch to "ON" and the rotary switch to the "3000/1250" position. With the scan tool, monitor the Input, Transfer and Output Speed Sensor readings. NOTE: Due to that the Transmission Simulator only has two speed sensor connectors, the Output and Transfer speed sensors need to share the same connector. You will be required to perform this test twice to validate both speed sensors wiring. Does the Input Speed read 3000 RPM and the Output Speed read 1250 RPM, ± 50 RPM? Yes Go to step 2 No Go to step 3
- (T13) SPEED SENSOR GROUND CIRCUIT OPEN Turn the ignition off to the lock position. Disconnect the Input, Transfer and Output Speed Sensor harness connectors. Disconnect the PCM C4 harness connector and install Miller tool #8815. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage the PCM terminals resulting in poor terminal to pin connection. Install Miller Special tool #8815 to perform diagnosis. Measure the resistance of the (T13) Speed Sensor Ground circuits between the appropriate terminals of Miller tool #8815 and the Input, Transfer, and Output Speed Sensor harness connectors. Is the resistance above 5.0 ohms on either circuit? Yes Repair the (T13) Speed Sensor Ground circuit(s) for an open. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Using the schematics as a guide, check the Powertrain Control Module (PCM) terminals for corrosion, damage, or terminal push out. Pay particular attention to all power and ground circuits. Check for Service Information Tune-ups or Service Bulletins for any possible causes that may apply. If no problems are found, replace and program the PCM per the Service Information. With the scan tool, perform QUICK LEARN. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000)
- INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set the DTC are not present at this time. Using the schematics as a guide, inspect the wiring and connectors specific to this circuit. Wiggle the wires while checking for shorted and open circuits. With the scan tool, check the DTC EVENT DATA to help identify the conditions in which the DTC was set. Were there any problems found? Yes Repair as necessary. Perform 62TE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-353649-S26532389092010011200000) No Test Complete.
- When Monitored: Continuously with engine running.
- Set Condition: If the Engine Temperature exceeds 123° C (255° F) or the Transmission Temperature exceeds 135° C (275° F) while in AutoStick® mode. Note: Aggressive driving or driving in low for extended periods of time will set this DTC.
| Possible Causes |
|---|
| MANUAL SHIFT OVERHEAT |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Whenever the engine is running. The LC Clutch Volume Index (CVI) is updated during a 3-1 or 2-1 manual downshift with throttle angle below 5 degrees. Transmission temperature must be at least 43° C (110° F).
- Set Condition: When the LC CVI falls below a calibrated value.
| Possible Causes |
|---|
| HYDRAULIC LEAK IN THE VALVE BODY |
| BROKEN LC CLUTCH PISTON RETURN SPRING OR SPRING RETAINERS |
| BROKEN LC ACCUMULATOR SPRING(S) |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Whenever the engine is running. The DC LC Clutch Volume Index (CVI) is updated during a 3-1 or 2-1 manual downshift with throttle angle below 5 degrees. Transmission temperature must be at least 43° C (110° F).
- Set Condition: When the DC CVI falls below a calibrated value.
| Possible Causes |
|---|
| HYDRAULIC LEAK IN THE VALVE BODY |
| BROKEN DC CLUTCH PISTON RETURN SPRING OR SPRING RETAINERS |
| BROKEN DC ACCUMULATOR SPRING(S) |
| TRANSMISSION SOLENOID/TRS ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
When Monitored
- Battery voltage is greater than 7.0 volts.
- TCC duty cycle is greater than 42%.
- Torque converter is in Lock Up or Partial Lock Up.
Set Condition
- The PCM detects the EMCC VFS voltage is above a calibrated threshold for 1.785 seconds.
| Possible Causes |
|---|
| (T84) EMCC VFS CONTROL CIRCUIT OPEN |
| (T84) EMCC VFS CONTROL CIRCUIT SHORT TO VOLTAGE |
| (T84) EMCC VFS CONTROL CIRCUIT SHORT TO GROUND |
| (T84) EMCC VFS CONTROL CIRCUIT SHORT TO ANOTHER CIRCUIT |
| EMCC VFS CONTROL SOLENOID |
| TRANSMISSION CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
When Monitored
- Battery voltage is greater than 7.0 volts.
- TCC duty cycle is less than 8%.
- Torque converter is not in Lock Up or Partial Lock Up.
Set Condition
- The PCM detects the EMCC VFS voltage is below a calibrated threshold for 357 ms.
| Possible Causes |
|---|
| (T84) EMCC VFS CONTROL CIRCUIT OPEN |
| (T84) EMCC VFS CONTROL CIRCUIT SHORT TO VOLTAGE |
| (T84) EMCC VFS CONTROL CIRCUIT SHORT TO GROUND |
| (T84) EMCC VFS CONTROL CIRCUIT SHORT TO ANOTHER CIRCUIT |
| EMCC VFS CONTROL SOLENOID |
| TRANSMISSION CONTROL MODULE |
Always perform the 62TE Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure
- When Monitored: Every 7 msec with: 1) Engine speed greater than 500 RPM. 2) Battery voltage between 10 and 16 volts.
- Set Condition: CAN C bus messages are not received for 10 seconds.
- When Monitored: Every 7 msec with: 1) Engine speed greater than 500 RPM. 2) Battery voltage between 10 and 16 volts.
- Set Condition: CAN C bus messages are not received for 10 seconds.
- When Monitored: Every 7 msec with: 1) Engine speed greater than 500 RPM. 2) Battery voltage between 10 and 16 volts.
- Set Condition: CAN C bus messages are not received for 10 seconds.
- When Monitored: Every 7 msec with: 1) Engine speed greater than 500 RPM. 2) Battery voltage between 10 and 16 volts.
- Set Condition: CAN C bus messages are not received for 10 seconds.