Ngc Engine - Dtcs P2167 to U110C: Other Dodge Dakota III рестайлинг

Monitor Conditions

1. When Monitored: Ignition on. During in plant mode the APP Sensors need to be checked to make sure that idle and full pedal travel can be reached on both sensors.

Set Conditions

1. Set Condition: APPS No. 2 has failed to achieve the required maximum value during In Plant testing. One trip fault and the code will set within 5 seconds. Engine will only idle. ETC light is illuminated.

Possible Causes

1. When Monitored: Ignition on and engine running with no MAP Sensor DTCs.

1. Set Condition: A large vacuum leak has been detected or both of the TP Sensors have failed based on their position being 2.5 volts and the calculated MAP value is less than the actual MAP minus an Offset value. One trip fault and the code will set within 5 seconds. ETC light will flash.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 412

Scheme 413

Scheme 414

Scheme 415

Scheme 416

Scheme 417

Scheme 418

Scheme 419

Scheme 420

Scheme 421

Scheme 422

Scheme 423

Scheme 424

Scheme 425

Scheme 426

1. ACTIVE DTC NOTE: The most likely cause of this DTC is a vacuum leak. NOTE: This fault code could be present if any Cam/Crank DTCs are set. No repair is necessary for P2172 if any Cam or Crank DTCs are set. NOTE: Diagnose any 5-Volt Supply, TP Sensor, Fuel System Lean or Rich, or MAP Sensor DTCs before continuing. NOTE: The throttle plate should be free from binding and carbon build up. Start the engine. Allow the engine to idle. NOTE: It may be necessary to drive the vehicle for the fault to become Active. With a scan tool, select View DTCs. Is the DTC Active at this time? Yes Go to step 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
2. VACUUM LEAK NOTE: This code is enabled on engines with a plastic intake manifold and is intended to limit the maximum engine speed if a large crack occurs. NOTE: A large vacuum leak is most likely the cause of this DTC. Inspect the Intake Manifold and Throttle body for leaks and cracks. Inspect the Power Brake Booster for any vacuum leaks. Inspect the PCV system for proper operation or any vacuum leaks. Inspect the MAP Sensor for proper installation. Were any vacuum leaks found? Yes Repair the vacuum leak as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 3
3. MAP SENSOR OPERATION Start the engine. With a scan tool, monitor the MAP Sensor voltage. Snap the Accelerator pedal. Does the MAP Sensor voltage vary from below 2.0 volts at idle to above 3.5 volts at Wide Open Throttle? Yes Go to step 4 No Go to step 13
4. TP SENSOR OPERATION Ignition on, engine not running. With a scan tool, perform the Throttle Follower Test. TP Sensor No. 1 should start at approximately 0.7 of a volt and increase to 4.3 volts. TP Sensor No. 2 should start at approximately 4.3 volts and decrease to 0.7 of a volt. Is the voltage transition smooth between the appropriate values? Yes Perform the INTERMITTENT CONDITION diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 5
5. RESISTANCE IN THE (F855) 5-VOLT SUPPLY CIRCUIT Turn the ignition off. Disconnect the Throttle Body harness connector. Disconnect the C2 PCM 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 (F855) 5-volt Supply circuit from the Throttle Body harness connector to the appropriate terminal of PCM Pinout Box 8815. Is the resistance above 100 Ohms? Yes Go to step 6 No Repair the excessive resistance in the (F855) 5-volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
6. (F855) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND Measure the resistance between ground and (F855) 5-volt Supply circuit at the Throttle Body harness connector. Is the resistance above 100 Ohms? Yes Go to step 7 No Repair the short to ground in the (F855) 5-volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
7. TP SENSOR Connect the C2 PCM harness connector. Ignition on, engine not running. With a scan tool, monitor the TP Sensor voltage. Connect a jumper wire between the (K22) TP Sensor No. 1 Signal circuit and the (K922) Sensor Return circuit in the Throttle Body harness connector. TP Sensor No. 1 voltage should start at approximately 4.8 volts and decrease to 0.2 of a volt. Connect a jumper wire between the (K122) TP Sensor No. 2 Signal circuit and the (F855) 5-volt Supply circuit in the Throttle Body harness connector. TP Sensor No. 2 voltage should start at approximately 0 volts and increase to 4.8 to 5.02 volts. Does the TP Sensor voltage change to the appropriate voltage with the jumper wire installed? Yes Verify that there is good pin to terminal contact in the Throttle Body and Powertrain Control Module connectors. Disconnect the Battery before replacing the Throttle Body Assembly. If OK, replace the Throttle Body Assembly. After installation is complete, use a scan tool and select the ETC RELEARN function Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 8
8. RESISTANCE IN THE (K22) TP SENSOR NO. 1 SIGNAL CIRCUIT Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance of the (K22) TP Sensor No. 1 Signal circuit from the Throttle Body harness connector to the appropriate terminal of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 9 No Repair the excessive resistance in the (K22) TP Sensor No. 1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
9. RESISTANCE IN THE (K122) TP SENSOR NO. 2 SIGNAL CIRCUIT Measure the resistance of the (K122) TP Sensor No. 2 Signal circuit from the Throttle Body harness connector to the appropriate terminals of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 10 No Repair the excessive resistance in the (K122) TP Sensor No. 2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
10. (K122) TP SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K22) TP Sensor No. 1 Signal circuit at the Throttle Body harness connector. Is the resistance above 100 Ohms? Yes Go to step 11 No Repair the short to ground in the (K22) TP Sensor No. 1 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
11. (K122) TP SENSOR NO. 2 SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K122) TP Sensor No. 2 Signal circuit at the Throttle Body harness connector. Is the resistance above 100 Ohms? Yes Go to step 12 No Repair the short to ground in the (K122) TP Sensor No. 2 Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
12. RESISTANCE IN THE (K922) SENSOR RETURN CIRCUIT Measure the resistance of the (K922) Sensor Return circuit from the Throttle Body harness connector to the appropriate terminal of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 19 No Repair the excessive resistance in the (K922) Sensor Return circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
13. RESISTANCE IN THE (F856) 5-VOLT SUPPLY CIRCUIT Turn the ignition off. Disconnect the MAP Sensor harness connector. Disconnect the C1 PCM 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 (F856) 5-volt Supply circuit from the MAP Sensor harness connector to the appropriate terminal of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 14 No Repair the excessive resistance in the (F856) 5-volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
14. (F856) 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (F856) 5-volt Supply circuit in the MAP Sensor harness connector. Is the resistance above 100k Ohms? Yes Go to step 15 No Repair the short to ground in the (F856) 5-volt Supply circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
15. MAP SENSOR Connect the C1 PCM harness connector. Ignition on, engine not running. With a scan tool, monitor the MAP Sensor voltage. Connect a jumper wire between the (K1) MAP Signal circuit and the (K900) Sensor ground circuit in the MAP Sensor harness connector. Cycle the ignition switch from off to on. With a scan tool, monitor the MAP Sensor voltage. Does the scan tool display MAP voltage from approximately 4.9 volts to below 0.5 volt with the jumper wire installed? Yes Verify that there is good pin to terminal contact in the MAP Sensor and Powertrain Control Module connectors. If OK, replace the MAP Sensor. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 16 NOTE: Remove the jumper wire before continuing.
16. RESISTANCE IN THE (K1) MAP SIGNAL CIRCUIT Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance of the (K1) MAP Signal circuit from the MAP Sensor harness connector to the appropriate terminal of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 17 No Repair the excessive resistance in the (K1) MAP Signal circuit Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
17. (K1) MAP SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K1) MAP Signal circuit in the MAP Sensor harness connector. Is the resistance above 100k Ohms? Yes Go to step 18 No Repair the short to ground in the (K1) MAP Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
18. RESISTANCE IN THE (K900) SENSOR GROUND CIRCUIT Measure the resistance of the (K900) Sensor ground circuit from the MAP Sensor harness connector to the appropriate terminal of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 19 No Repair the excessive resistance in the (K900) Sensor ground circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
19. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the MAP Sensor, Throttle Body, and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the MAP Sensor, Throttle Body, and Powertrain Control Module connectors. Perform any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .

1. When Monitored: Ignition on and engine running with no MAP Sensor DTCs.

1. Set Condition: A large vacuum leak has been detected or both of the TP Sensors have failed based on their position being 2.5 volts and the calculated MAP value is less than the Gas Flow Adaptation value is too high. One trip fault the code will set within 5 seconds. ETC light will flash.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

1. When Monitored: Ignition on and engine running with no MAP Sensor DTCs.

1. Set Condition: PCM calculated MAP value is greater than actual MAP value plus an offset value. One trip fault. Three good trips to turn of the mil. ETC light will flash.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

1. When Monitored: Ignition on and engine running with no MAP Sensor DTCs.

1. Set Condition: PCM calculated MAP value is greater than actual MAP value plus an offset value. One trip fault and the code will set within 5 seconds. Three good trips to turn of the mil. ETC light will flash.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

1. When Monitored: Ignition on, Engine running, and no ECT DTCs present.

1. Set Condition: PCM recognizes that the ECT has failed its self coherence test. The coolant temp should only change at a certain rate, if this rate is too slow or too fast this fault will set. One trip fault. Three good trips to clear MIL. ETC light will illuminate on first trip failure.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 427

Scheme 428

Scheme 429

Scheme 430

Scheme 431

Scheme 432

1. ACTIVE DTC Ignition on, engine not running. NOTE: If this code sets during extreme ambient temperatures, improper installation of a block heater could be the cause of this DTC. With a scan tool, select View DTCs. Diagnose all other ECT and Cooling System codes before continuing. NOTE: It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data. Is the DTC Active or Pending at this time? Yes Go to step 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
2. LOW COOLANT LEVEL NOTE: If a Engine Coolant Temperature (ECT) DTC is set along with this code, diagnose the ECT DTC first. NOTE: Inspect the ECT terminals and related PCM terminals. Make sure the terminals are free from corrosion and damage. NOTE: The best way to diagnose this DTC is to allow the vehicle to sit overnight outside in order to have a totally cold soaked engine. NOTE: Extremely cold outside ambient temperatures may have caused this DTC to set. NOTE: Need to make sure that no Cooling System DTCs are set or changes that would make the warm up much slower or much faster: broken water pump can set this, addition of aftermarket auxiliary cooler can set this DTC. WARNING: Never open the cooling system when the engine is hot. The system is under pressure. Failure to follow these instructions can result in personal injury or death. Allow the engine to cool before opening the cooling system. Inspect the coolant system for proper level and condition. Is the coolant level and condition OK? Yes Go to step 3 No Inspect the vehicle for a coolant leak and add the necessary amount of coolant. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
3. THERMOSTAT NOTE: This test works best if performed on a cold engine (cold soak). Ignition on, engine not running. With a scan tool, read the Eng Coolant Tmp Deg value. If the engine was allowed to sit overnight (cold soak), the temperature value should be a sensible value that is somewhere close to the ambient temperature. NOTE: If engine coolant temperature is above 82°C (180°F), allow the engine to cool until 65°C (150°F) is reached. Start the Engine. During engine warm-up monitor the Eng Coolant Tmp Deg value. The temp deg value change should be a smooth transition from start up to normal operating temp 82°C (180°F). Also monitor the actual coolant temperature with a thermometer. NOTE: As the engine warms up to operating temperature, the actual coolant temperature (thermometer reading) and the Eng Coolant Tmp Deg on the scan tool should stay relatively close to each other. Using the appropriate service information, determine the proper opening temperature of the thermostat. Did the thermostat open at the proper temperature? Yes Go to step 4 No Replace the thermostat. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
4. ECT SENSOR Connect a jumper between the (K2) ECT Signal circuit and the (K900) Sensor ground circuit in the ECT Sensor harness connector. Turn the ignition off. Disconnect the ECT Sensor harness connector. With a scan tool, read the ECT voltage. NOTE: The sensor voltage should be approximately 0.0 volts (plus or minus.1 volt) with the jumper wire in place. Does the scan tool display the voltage as described above? Yes Verify that there is good pin to terminal contact in the ECT Sensor and Powertrain Control Module connectors. If OK, replace the ECT Sensor. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 5
5. (K2) ECT SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the C2 PCM harness connector. Ignition on, engine not running. Measure the voltage on the (K2) ECT Signal circuit in the ECT Sensor harness connector. Is there any voltage present? Yes Repair the short to voltage in the (K2) ECT Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 6
6. (K2) ECT SIGNAL CIRCUIT OPEN Turn the ignition off. 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 (K2) ECT Signal circuit from the ECT Sensor harness connector to the appropriate terminal of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 7 No Repair the open in the (K2) ECT Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
7. (K900) SENSOR GROUND CIRCUIT OPEN Measure the resistance of the (K900) Sensor ground circuit from the ECT Sensor harness connector to the appropriate terminal of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 8 No Repair the open in the (K900) Sensor ground circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
8. (K2) ECT SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K2) ECT Signal circuit in the ECT Sensor harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K2) ECT Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 9
9. (K2) ECT SIGNAL CIRCUIT SHORTED TO THE (K900) SENSOR GROUND CIRCUIT Measure the resistance between the (K2) ECT Signal circuit and the (K900) Sensor ground circuit in the ECT Sensor harness connector. Is the resistance below 5.0 Ohms? Yes Repair the short between the (K900) Sensor ground and the (K2) ECT Signal circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 10
10. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the ECT Sensor and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the ECT Sensor and Powertrain Control Module connectors. Perform any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .

Scheme 433

1. When Monitored: With the engine running, vehicle speed above 96 kph (60 mph), throttle open for a minimum of 120 seconds, ECT greater than 70 C (158 F), catalytic converter temperature greater than 600 C (1112 F), and downstream oxygen sensor in a rich state. During a decel fuel shutoff event, the downstream oxygen sensor should switch from rich to lean within a specific time.

1. Set Condition: The PCM monitors the downstream O2 sensor. If the PCM does not detect a rich to lean switch within a specific time during a decel fuel shutoff event, the monitor will fail. Two trip fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

1. When Monitored: With the engine running, vehicle speed above 96 kph (60 mph), throttle open for a minimum of 120 seconds, ECT greater than 70°C (158°F), catalytic converter temperature greater than 600°C (1112°F), and downstream oxygen sensor in a rich state. During a decel fuel shutoff event, the downstream oxygen sensor should switch from rich to lean within a specific time.

1. Set Condition: The PCM monitors the downstream O2 sensor. If the PCM does not detect a rich to lean switch within a specific time during a decel fuel shutoff event, the monitor will fail. Two trip fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

1. When Monitored: Ignition on. No Break or APPS faults present.

1. Set Condition: The PCM recognizes a brake application following the APPS showing a fixed pedal opening. Temporary or permanent. Internally the PCM will reduce throttle opening below driver demand. One trip fault and the code will be set within 5 seconds. ETC light will illuminate, the light will only stay illuminated while DTC is active.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

1. When Monitored: Engine running and battery voltage greater than 10 volts.

1. Set Condition: If the Powertrain Control Module (PCM) detects that the secondary ignition burn time is incorrect, too short, or not present, an error is detected. One Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 434

Scheme 435

Scheme 436

Scheme 437

1. ACTIVE DTC NOTE: Diagnose any ASD related DTCs before continuing. Start the engine. With a scan tool, select View DTCs. NOTE: It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data. Is the DTC Active at this time? Yes Go to step 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
2. (A955) ASD RELAY OUTPUT CIRCUIT Turn the ignition off. Disconnect the Coil on Plug harness connector. Using a 12-volt test light connected to ground, probe the (A955) ASD Relay Output circuit in the Coil on Plug harness connector. NOTE: Make sure the test light is probing the circuit before actuating the Relay or a DTC may set and not allow the actuation. Ignition on, engine not running. With a scan tool, actuate the ASD Relay. Does the test light illuminate brightly? Yes Go to step 3 No Repair the open or short to ground in the (A955) ASD Relay Output circuit between the IPM and Coil harness connector. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) NOTE: Stop All Actuations.
3. COIL ON PLUG RESISTANCE Turn the ignition off. NOTE: The following resistance measurement should be taken at 70°-80°F. Measure the resistance of the Coil on Plug. 4.7L and 3.7L Primary Ignition Coil resistance is 0.6 to 0.9 of an Ohm at 25°C (77°F). Is the resistance within the given specification for the Ignition Coil being tested? Yes Go to step 4 No Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
4. IGNITION COIL WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Using a 12-volt test light connected to a 12-volt source, probe the (K19) Coil Control No. 1 circuit. Crank the engine for 5 seconds while observing the test light. What is the condition of the test light while cranking the engine? Brightly blinking. Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . ON constantly. Go to step 5 OFF constantly. Go to step 6
5. (K19) COIL CONTROL NO. 1 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K19) Coil Control No. 1 circuit in the Coil on Plug harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K19) Coil Control No. 1 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 7
6. (K19) COIL CONTROL NO. 1 CIRCUIT OPEN Turn the ignition off. Disconnect the C2 PCM 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 (K19) Coil Control No. 1 circuit from the Coil on Plug harness connector to the appropriate terminal of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 7 No Repair the open in the (K19) Coil Control No. 1 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ignition Coil and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Ignition Coil and the Powertrain Control Module connectors. Perform any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .

Scheme 438

1. When Monitored: Engine running and battery voltage greater than 10 volts.

1. Set Condition: If PCM detects that the secondary ignition burn time is incorrect, to short, or not present, an error is detected. One Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 439

Scheme 440

Scheme 441

Scheme 442

1. ACTIVE DTC NOTE: Diagnose any ASD related DTC's before continuing. Start the engine. With a scan tool, select View DTCs. NOTE: It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data. Is the DTC Active at this time? Yes Go to step 2 No Refer to the INTERMITTENT CONDITION Diagnostic Procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
2. (A955) ASD RELAY OUTPUT CIRCUIT Turn the ignition off. Disconnect the Coil on Plug harness connector. Using a 12-volt test light connected to ground, probe the (A955) ASD Relay Output circuit in the Coil on Plug harness connector. NOTE: Make sure the test light is probing the circuit before actuating the Relay or a DTC may set and not allow the actuation. Ignition on, engine not running. With a scan tool, actuate the ASD Relay. Does the test light illuminate brightly? Yes Go to step 3 No Repair the open or short to ground in the (A955) ASD Relay Output circuit between the IPM and Coil harness connector. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) NOTE: Stop All Actuations.
3. COIL ON PLUG RESISTANCE Turn the ignition off. NOTE: The following resistance measurement should be taken at 70°-80°F. Measure the resistance of the Coil on Plug. 4.7L and 3.7L Primary Ignition Coil resistance is 0.6 to 0.9 of an ohm at 25°C (77°F). Is the resistance within the given specification for the Ignition Coil being tested? Yes Go to step 4 No Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
4. IGNITION COIL WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Using a 12-volt test light connected to a 12-volt source, probe the (K17) Coil Control No. 2 circuit. Crank the engine for 5 seconds while observing the test light. What is the state of the test light while cranking the engine? Brightly blinking. Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) ON constantly. Go to step 5 OFF constantly. Go to step 6
5. (K17) COIL CONTROL NO. 2 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K17) Coil Control No. 2 circuit in the Coil on Plug harness connector. Is the resistance below 100 ohms? Yes Repair the short to ground in the (K17) Coil Control No. 2 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) No Go to step 7
6. (K17) COIL CONTROL NO. 2 CIRCUIT OPEN Turn the ignition off. Disconnect the C2 PCM 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 (K17) Coil Control No. 2 circuit from the Coil on Plug harness connector to the appropriate terminal of special tool #8815. Is the resistance below 5.0 ohms? Yes Go to step 7 No Repair the open in the (K17) Coil Control No. 2 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ignition Coil and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Ignition Coil and the Powertrain Control Module connectors. Refer to any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) No Replace and program the Powertrain Control Module per Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)

Scheme 443

1. When Monitored: Engine running and battery voltage greater than 10 volts.

1. Set Condition: If PCM detects that the secondary ignition burn time is incorrect, to short, or not present, an error is detected. One Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 444

Scheme 445

Scheme 446

Scheme 447

1. ACTIVE DTC NOTE: Diagnose any ASD related DTCs before continuing. Start the engine. With a scan tool, select View DTCs. NOTE: It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data. Is the DTC Active at this time? Yes Go to step 2 No Refer to the INTERMITTENT CONDITION Diagnostic Procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
2. (A955) ASD RELAY OUTPUT CIRCUIT Turn the ignition off. Disconnect the Coil on Plug harness connector. Using a 12-volt test light connected to ground, probe the (A955) ASD Relay Output circuit in the Coil on Plug harness connector. NOTE: Make sure the test light is probing the circuit before actuating the Relay or a DTC may set and not allow the actuation. Ignition on, engine not running. With a scan tool, actuate the ASD Relay. Does the test light illuminate brightly? Yes Go to step 3 No Repair the open or short to ground in the (A955) ASD Relay Output circuit between the IPM and Coil harness connector. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) NOTE: Stop All Actuations.
3. COIL ON PLUG RESISTANCE Turn the ignition off. NOTE: The following resistance measurement should be taken at 70°-80°F. Measure the resistance of the Coil on Plug. 4.7L and 3.7L Primary Ignition Coil resistance is 0.6 to 0.9 of an ohm at 25°C (77°F). Is the resistance within the given specification for the Ignition Coil being tested? Yes Go to step 4 No Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
4. IGNITION COIL WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Using a 12-volt test light connected to a 12-volt source, probe the (K18) Coil Control No. 3 circuit. Crank the engine for 5 seconds while observing the test light. What is the state of the test light while cranking the engine? Brightly blinking. Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) ON constantly. Go to step 5 OFF constantly. Go to step 6
5. (K18) COIL CONTROL NO. 3 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K18) Coil Control No. 3 circuit in the Coil on Plug harness connector. Is the resistance below 100 ohms? Yes Repair the short to ground in the (K18) Coil Control No. 3 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) No Go to step 7
6. (K18) COIL CONTROL NO. 3 CIRCUIT OPEN Turn the ignition off. Disconnect the C2 PCM 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 (K18) Coil Control No. 3 circuit from the Coil on Plug harness connector to the appropriate terminal of special tool #8815. Is the resistance below 5.0 ohms? Yes Go to step 7 No Repair the open in the (K18) Coil Control No. 3 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ignition Coil and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Ignition Coil and the Powertrain Control Module connectors. Refer to any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) No Replace and program the Powertrain Control Module per Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)

Scheme 448

1. When Monitored: Engine running and battery voltage greater than 10 volts.

1. Set Condition: If PCM detects that the secondary ignition burn time is incorrect, to short, or not present, an error is detected. One Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 449

Scheme 450

Scheme 451

Scheme 452

1. ACTIVE DTC NOTE: Diagnose any ASD related DTCs before continuing. Start the engine. With a scan tool, select View DTCs. NOTE: It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data. Is the DTC Active at this time? Yes Go to step 2 No Refer to the INTERMITTENT CONDITION Diagnostic Procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
2. (A955) ASD RELAY OUTPUT CIRCUIT Turn the ignition off. Disconnect the Coil on Plug harness connector. Using a 12-volt test light connected to ground, probe the (A955) ASD Relay Output circuit in the Coil on Plug harness connector. NOTE: Make sure the test light is probing the circuit before actuating the Relay or a DTC may set and not allow the actuation. Ignition on, engine not running. With a scan tool, actuate the ASD Relay. Does the test light illuminate brightly? Yes Go to step 3 No Repair the open or short to ground in the (A955) ASD Relay Output circuit between the IPM and Coil harness connector. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) NOTE: Stop All Actuations.
3. COIL ON PLUG RESISTANCE Turn the ignition off. NOTE: The following resistance measurement should be taken at 70°-80°F. Measure the resistance of the Coil on Plug. 4.7L and 3.7L Primary Ignition Coil resistance is 0.6 to 0.9 of an ohm at 25°C (77°F). Is the resistance within the given specification for the Ignition Coil being tested? Yes Go to step 4 No Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
4. IGNITION COIL WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Using a 12-volt test light connected to a 12-volt source, probe the (K15) Coil Control No. 4 circuit. Crank the engine for 5 seconds while observing the test light. What is the state of the test light while cranking the engine? Brightly blinking. Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) ON constantly. Go to step 5 OFF constantly. Go to step 6
5. (K15) COIL CONTROL NO. 4 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K15) Coil Control No. 4 circuit in the Coil on Plug harness connector. Is the resistance below 100 ohms? Yes Repair the short to ground in the (K15) Coil Control No. 4 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) No Go to step 7
6. (K15) COIL CONTROL NO. 4 CIRCUIT OPEN Turn the ignition off. Disconnect the C2 PCM 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 (K15) Coil Control No. 4 circuit from the Coil on Plug harness connector to the appropriate terminal of special tool #8815. Is the resistance below 5.0 ohms? Yes Go to step 7 No Repair the open in the (K15) Coil Control No. 4 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ignition Coil and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Ignition Coil and the Powertrain Control Module connectors. Refer to any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) No Replace and program the Powertrain Control Module per Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)

Scheme 453

1. When Monitored: Engine running and battery voltage greater than 10 volts.

1. Set Condition: If PCM detects that the secondary ignition burn time is incorrect, to short, or not present, an error is detected. One Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 454

Scheme 455

Scheme 456

Scheme 457

1. ACTIVE DTC NOTE: Diagnose any ASD related DTCs before continuing. Start the engine. With a scan tool, select View DTCs. NOTE: It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data. Is the DTC Active at this time? Yes Go to step 2 No Refer to the INTERMITTENT CONDITION Diagnostic Procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
2. (A955) ASD RELAY OUTPUT CIRCUIT Turn the ignition off. Disconnect the Coil on Plug harness connector. Using a 12-volt test light connected to ground, probe the (A955) ASD Relay Output circuit in the Coil on Plug harness connector. NOTE: Make sure the test light is probing the circuit before actuating the Relay or a DTC may set and not allow the actuation. Ignition on, engine not running. With a scan tool, actuate the ASD Relay. Does the test light illuminate brightly? Yes Go to step 3 No Repair the open or short to ground in the (A955) ASD Relay Output circuit between the IPM and Coil harness connector. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) NOTE: Stop All Actuations.
3. COIL ON PLUG RESISTANCE Turn the ignition off. NOTE: The following resistance measurement should be taken at 70°-80°F. Measure the resistance of the Coil on Plug. 4.7L and 3.7L Primary Ignition Coil resistance is 0.6 to 0.9 of an ohm at 25°C (77°F). Is the resistance within the given specification for the Ignition Coil being tested? Yes Go to step 4 No Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
4. IGNITION COIL WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Using a 12-volt test light connected to a 12-volt source, probe the (K16) Coil Control No. 5 circuit. Crank the engine for 5 seconds while observing the test light. What is the state of the test light while cranking the engine? Brightly blinking. Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) ON constantly. Go to step 5 OFF constantly. Go to step 6
5. (K16) COIL CONTROL NO. 5 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K16) Coil Control No. 5 circuit in the Coil on Plug harness connector. Is the resistance below 100 ohms? Yes Repair the short to ground in the (K16) Coil Control No. 5 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) No Go to step 7
6. (K16) COIL CONTROL NO. 5 CIRCUIT OPEN Turn the ignition off. Disconnect the C2 PCM 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 (K16) Coil Control No. 5 circuit from the Coil on Plug harness connector to the appropriate terminal of special tool #8815. Is the resistance below 5.0 ohms? Yes Go to step 7 No Repair the open in the (K16) Coil Control No. 5 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ignition Coil and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Ignition Coil and the Powertrain Control Module connectors. Refer to any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) No Replace and program the Powertrain Control Module per Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)

Scheme 458

1. When Monitored: Engine running and battery voltage greater than 10 volts.

1. Set Condition: If PCM detects that the secondary ignition burn time is incorrect, to short, or not present, an error is detected. One Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 459

Scheme 460

Scheme 461

1. ACTIVE DTC NOTE: Diagnose any ASD related DTCs before continuing. Start the engine. With a scan tool, select View DTCs. NOTE: It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data. Is the DTC Active at this time? Yes Go to step 2 No Refer to the INTERMITTENT CONDITION Diagnostic Procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
2. (A955) ASD RELAY OUTPUT CIRCUIT Turn the ignition off. Disconnect the Coil on Plug harness connector. Using a 12-volt test light connected to ground, probe the (A955) ASD Relay Output circuit in the Coil on Plug harness connector. NOTE: Make sure the test light is probing the circuit before actuating the Relay or a DTC may set and not allow the actuation. Ignition on, engine not running. With a scan tool, actuate the ASD Relay. Does the test light illuminate brightly? Yes Go to step 3 No Repair the open or short to ground in the (A955) ASD Relay Output circuit between the IPM and Coil harness connector. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) NOTE: Stop All Actuations.
3. COIL ON PLUG RESISTANCE Turn the ignition off. NOTE: The following resistance measurement should be taken at 70°-80°F. Measure the resistance of the Coil on Plug. 4.7L and 3.7L Primary Ignition Coil resistance is 0.6 to 0.9 of an ohm at 25°C (77°F). Is the resistance within the given specification for the Ignition Coil being tested? Yes Go to step 4 No Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
4. IGNITION COIL WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Using a 12-volt test light connected to a 12-volt source, probe the (K10) Coil Control No. 6 circuit. Crank the engine for 5 seconds while observing the test light. What is the state of the test light while cranking the engine? Brightly blinking. Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) ON constantly. Go to step 5 OFF constantly. Go to step 6
5. (K10) COIL CONTROL NO. 6 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C2 PCM harness connector. Measure the resistance between ground and the (K10) Coil Control No. 6 circuit in the Coil on Plug harness connector. Is the resistance below 100 ohms? Yes Repair the short to ground in the (K10) Coil Control No. 6 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) No Go to step 7
6. (K10) COIL CONTROL NO. 6 CIRCUIT OPEN Turn the ignition off. Disconnect the C2 PCM 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 (K10) Coil Control No. 6 circuit from the Coil on Plug harness connector to the appropriate terminal of special tool #8815. Is the resistance below 5.0 ohms? Yes Go to step 7 No Repair the open in the (K10) Coil Control No. 6 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ignition Coil and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Ignition Coil and the Powertrain Control Module connectors. Refer to any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) No Replace and program the Powertrain Control Module per Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000)

Scheme 462

1. When Monitored: Engine running and battery voltage greater than 10 volts.

1. Set Condition: If PCM detects that the secondary ignition burn time is incorrect, to short, or not present, an error is detected. One Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 463

Scheme 464

Scheme 465

Scheme 466

1. ACTIVE DTC NOTE: Diagnose any ASD related DTCs before continuing. Start the engine. With a scan tool, select View DTCs. NOTE: It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data. Is the DTC Active at this time? Yes Go to step 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
2. (A955) ASD RELAY OUTPUT CIRCUIT Turn the ignition off. Disconnect the Coil on Plug harness connector. Using a 12-volt test light connected to ground, probe the (A955) ASD Relay Output circuit in the Coil on Plug harness connector. NOTE: Make sure the test light is probing the circuit before actuating the Relay or a DTC may set and not allow the actuation. Ignition on, engine not running. With a scan tool, actuate the ASD Relay. Does the test light illuminate brightly? Yes Go to step 3 No Repair the open or short to ground in the (A955) ASD Relay Output circuit between the IPM and Coil harness connector. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . NOTE: Stop All Actuations.
3. COIL ON PLUG RESISTANCE Turn the ignition off. NOTE: The following resistance measurement should be taken at 70°-80°F. Measure the resistance of the Coil on Plug. 4.7L Primary Ignition Coil resistance is 0.6 to 0.9 of an Ohm at 25°C (77°F). Is the resistance within the given specification for the Ignition Coil being tested? Yes Go to step 4 No Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
4. IGNITION COIL WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Using a 12-volt test light connected to a 12-volt source, probe the (K97) Coil Control No. 7 circuit. Crank the engine for 5 seconds while observing the test light. What is the state of the test light while cranking the engine? Brightly blinking. Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . ON constantly. Go to step 5 OFF constantly. Go to step 6
5. (K97) COIL CONTROL NO. 7 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C1 PCM harness connector. Measure the resistance between ground and the (K97) Coil Control No. 7 circuit in the Coil on Plug harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K97) Coil Control No. 7 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 7
6. (K97) COIL CONTROL NO. 7 CIRCUIT OPEN Turn the ignition off. Disconnect the C1 PCM 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 (K97) Coil Control No. 7 circuit from the Coil on Plug connector to the appropriate terminal of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 7 No Repair the open in the (K97) Coil Control No. 7 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ignition Coil and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Ignition Coil and the Powertrain Control Module connectors. Perform any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .

Scheme 467

1. When Monitored: Engine running and battery voltage greater than 10 volts.

1. Set Condition: If PCM detects that the secondary ignition burn time is incorrect, to short, or not present, an error is detected. One Trip Fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 468

Scheme 469

Scheme 470

Scheme 471

1. ACTIVE DTC NOTE: Diagnose any ASD related DTCs before continuing. Start the engine. With a scan tool, select View DTCs. NOTE: It may be necessary to drive the vehicle to meet the conditions to set this DTC, try to repeat the conditions in which the fault originally set by reviewing the Freeze Frame data. Is the DTC Active at this time? Yes Go to step 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
2. (A955) ASD RELAY OUTPUT CIRCUIT Turn the ignition off. Disconnect the Coil on Plug harness connector. Using a 12-volt test light connected to ground, probe the (A955) ASD Relay Output circuit in the Coil on Plug harness connector. NOTE: Make sure the test light is probing the circuit before actuating the Relay or a DTC may set and not allow the actuation. Ignition on, engine not running. With a scan tool, actuate the ASD Relay. Does the test light illuminate brightly? Yes Go to step 3 No Repair the open or short to ground in the (A955) ASD Relay Output circuit between the IPM and Coil harness connector. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . NOTE: Stop All Actuations.
3. COIL ON PLUG RESISTANCE Turn the ignition off. NOTE: The following resistance measurement should be taken at 70°-80°F. Measure the resistance of the Coil on Plug. 4.7L Primary Ignition Coil resistance is 0.6 to 0.9 of an Ohm at 25°C (77°F). Is the resistance within the given specification for the Ignition Coil being tested? Yes Go to step 4 No Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
4. IGNITION COIL WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Using a 12-volt test light connected to a 12-volt source, probe the (K98) Coil Control No. 8 circuit. Crank the engine for 5 seconds while observing the test light. What is the state of the test light while cranking the engine? Brightly blinking. Replace the Coil on plug. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . ON constantly. Go to step 5 OFF constantly. Go to step 6
5. (K98) COIL CONTROL NO. 8 CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the C1 PCM harness connector. Measure the resistance between ground and the (K98) Coil Control No. 8 circuit in the Coil on Plug harness connector. Is the resistance below 100 Ohms? Yes Repair the short to ground in the (K98) Coil Control No. 8 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 7
6. (K98) COIL CONTROL NO. 8 CIRCUIT OPEN Turn the ignition off. Disconnect the C1 PCM 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 (K98) Coil Control No. 8 circuit from the Coil on Plug harness connector to the appropriate terminal of PCM Pinout Box 8815. Is the resistance below 5.0 Ohms? Yes Go to step 7 No Repair the open in the (K98) Coil Control No. 8 circuit. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
7. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Ignition Coil and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Ignition Coil and the Powertrain Control Module connectors. Perform any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .

Scheme 472

1. When Monitored: The engine running. The engine RPM is high enough to assure sufficient generator current output to satisfy the electrical loads.

1. Set Condition: The battery sensed voltage is less than the target charging voltage, during engine operation, for a calibrated amount of time. One Trip Fault. Generator light will illuminate.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 473

1. ACTIVE DTC NOTE: Inspect the vehicle for aftermarket accessories that may exceed the Generator System output. NOTE: The battery must be fully charged. NOTE: The Generator belt tension and condition must be checked before continuing. Ignition on, engine not running. With a scan tool, select View DTCs. Read and record the related Freeze Frame data for P2503. With a scan tool, erase DTCs. Start the engine. Allow the idle to stabilize. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go to step 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
2. FUSED B+ CIRCUIT HIGH RESISTANCE WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. Ignition on, engine not running. NOTE: Make sure all wires are clear of the engine's moving parts. Measure the voltage between the Generator B+ Output Terminal and the Battery + Post. Start the engine. Is the voltage above 0.4 of a volt? Yes Repair the excessive resistance in the Battery positive circuit between the Generator and Battery. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 3
3. GENERATOR OPERATION Turn the ignition off. Disconnect the Generator Field harness connector. Using a 12-volt test light connected to ground, probe (K125) Generator Field Control circuit in the Generator Field harness connector. Ignition on, engine not running. NOTE: Make sure the test light is probing the circuit before actuating the Generator Field or a DTC may set and not allow the actuation. With a scan tool, actuate the Generator Field Driver. NOTE: The test light should be illuminated and bright proportional to the maximum duty cycle allowed by the scan tool. For example, if the scan tool allows 100% actuation, the brightness should be as bright as a direct connection to the battery. If the scan tool allows a maximum 25% actuation, the brightness should be 25% as bright as a direct connection to the battery. Does the test light illuminate accordingly? Yes Verify that there is good pin to terminal contact in the Generator and the Powertrain Control Module connectors. If OK, replace the Generator. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Go to step 4
4. POWERTRAIN CONTROL MODULE (PCM) Using the wiring diagram/schematic as a guide, inspect the wiring and connectors between the Generator and the Powertrain Control Module (PCM). Look for any chafed, pierced, pinched, or partially broken wires. Look for broken, bent, pushed out or corroded terminals. Verify that there is good pin to terminal contact in the Generator and the Powertrain Control Module connectors. Perform any Technical Service Bulletins that may apply. Were there any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Replace and program the Powertrain Control Module in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .

1. When Monitored: The engine running. The engine speed greater than 1157 RPM.

1. Set Condition: The alternator B+ voltage sense circuit voltage reading exceeds the direct Battery B+ sense circuit. The Generator Output terminal in not connected to the Battery B+ post. One trip fault with the

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

1. When Monitored: With the engine running after a cycle when a complete engine warm up was achieved, the difference between engine coolant temperature and ambient air temperature greater than 10°C (50°F), after a minimum temperature drop of 10°C (50°F) during ignition off, and battery voltage greater than 10 volts.

1. Set Condition: The PCM detects that the engine coolant temperature drops a specified amount during the measured engine off time. Two trip fault. Three good trips to turn off the MIL.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

Scheme 474

1. ACTIVE DTC NOTE: Diagnose and repair any other DTCs set in the PCM before proceeding with this test. Turn the ignition on. With the scan tool, Clear DTCs in the Powertrain Control Module (PCM). Start the engine and allow it to reach operating temperature. WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands near the pulleys, belts or fan. Do not wear loose clothing. Failure to follow these instructions may result in possible serious or fatal injury. With the scan tool, select View DTCs. Is the DTC Active at this time? Yes Go to step 2 No Perform the INTERMITTENT CONDITION diagnostic procedure. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
2. PCM IGNITION CIRCUITS Turn the ignition off. Disconnect the C1 PCM 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. With a 12-volt test light connected to ground and with PCM Pinout Box 8815 installed, probe the (F1), (F26), and (F942) Fused Ignition Switch circuits. Perform the above check with the Ignition key in the off lock position, Ignition on, engine not running position, and during cranking. Wiggle the related wire harness while probing the special tool with the test light to try to interrupt the circuit. Does the test light illuminate brightly? Yes Go to step 3 No Repair the open or excessive resistance in the (F1), (F26), and (F942) Fused Ignition Switch (Off, Run, Start) circuits. Inspect the related fuse, if the fuse is open check the circuits for a short to ground. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .
3. POWERTRAIN CONTROL MODULE (PCM) Verify that the PCM is operating at the latest software version available. Perform any Technical Service Bulletins that may apply. Were any problems found? Yes Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) . No Replace and program the Powertrain Control Module (PCM) in accordance with the Service Information. Perform the POWERTRAIN VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure»(ref-352681-S03115589192010010600000) .

Scheme 475

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts. Engine run time greater than 3 seconds.

1. Set Condition: The PCM loses communication over the CAN C Bus circuit. The circuit is continuously monitored.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts. Engine run time greater than 3 seconds.

1. Set Condition: The PCM doesn't receive a Bus Message from the Transmission Control Module for 7 consecutive seconds. The circuit is continuously monitored. Two Trip fault.

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts. Engine run time greater than 3 seconds.

1. Set Condition: The PCM doesn't receive an ABS message over the CAN C circuit for 7 consecutive seconds. The circuit is continuously monitored.

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts.

1. Set Condition: The PCM doesn't receive a FCM message over the CAN C circuit for 7 consecutive seconds. The circuit is continuously monitored.

1. When Monitored: Ignition run time is greater than 1 second. Battery voltage between 9 and 16 volts. Engine run time greater than 3 seconds.

1. Set Condition: The PCM doesn't receive a SKREEM message over the CAN C circuit for 7 consecutive seconds. The circuit is continuously monitored.

1. When Monitored: Ignition on.

1. Set Condition: When the PCM does not receive a fuel level signal from the FCM over the CAN C circuit. The circuit is constantly monitored. One Trip fault.

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .