Final Drive Control Module (Fdcm) - Electrical Diagnostics: Diagnosis Jeep Liberty II

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX

Scheme 327

Diagnostic Test

1. DTC IS ACTIVE Ignition on, engine not running. With the scan tool, record and erase DTCs. Test drive the vehicle. Ignition on, engine not running. With the scan tool, read DTCs. Is the status Active for this DTC? Yes Go to step 2 No Go to step 4
2. TRANSFER CASE INTERNAL CONDITION Turn the ignition off to the lock position Inspect the Transfer Case in accordance with the Service Information to determine if there are any mechanical conditions that are preventing the Shift Motor from engaging the requested range. Are any mechanical conditions preventing the Shift Motor from engaging the requested range? Yes Repair or replace the Transfer Case in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 3
3. TRANSFER CASE MOTOR Turn the ignition off to the lock position Using the wiring diagram/schematic as a guide, inspect all wiring and connectors that pertain to this circuit. If any problems are found, repair as necessary and retest. If no other problems are found, replace the Transfer Case Motor in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . Ignition on, engine not running. Test drive the vehicle. With the scan tool, read DTCs. Is the DTC status Active? Yes Replace the Final Drive Control Module (FDCM) in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test complete.
4. INTERMITTENT WIRING HARNESS AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring harness and connectors. Wiggle test the wiring harness and connectors while monitoring the scan tool data relative to this circuit. Look for the data to change or for the DTC to reset during the wiggle test. While monitoring the scan tool data relative to this circuit, move the selector switch to each position several times. Look for the data to change other than as expected or for the DTC to reset. Were any problems found? Yes Repair as necessary. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test complete.

1. DTC IS ACTIVE NOTE: If both DTCs C1415 and C140A are present, check the FDCM fuse and the B(+) supply to the Integrated Power Module (IPM). Ignition on, engine not running. With the scan tool, read DTCs in the Final Drive Control Module. Pick the answer that best describes the DTC set conditions? Yes Go To 2 No Go to step 4
2. (T315) SHIFT MOTOR CONTROL A CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off to the lock position Disconnect the Transfer Case Motor harness connector. Disconnect the Final Drive Control Module C1 harness connector. Measure the resistance of the (T315) Shift Motor Control A circuit from the Transfer Case Motor harness connector to the Final Drive Control Module C2 harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T315) Shift Motor Control A circuit for an open or high resistance. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 3
3. (T316) SHIFT MOTOR CONTROL B CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (T316) Shift Motor Control B circuit from the Transfer Case Motor harness connector to the Final Drive Control Module C2 harness connector. Is the resistance above 5.0 ohms? Yes Repair the (T316) Shift Motor Control B circuit for an open or high resistance. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Replace the Final Drive Control Module (FDCM) in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
4. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes Repair as necessary. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test complete.

1. DTC IS ACTIVE NOTE: Diagnose and repair any system voltage or Transfer Case related DTCs in the Final Drive Control Module before continuing with this test. Ignition on, engine not running. With the scan tool, clear Stored DTCs in the FDCM and the CCN. Test drive the vehicle. During the test drive, move the Transfer Case Selector Switch to each position several times in accordance with the Service Information. With the scan tool, read DTCs in the FDCM and the CCN. Does this DTC reset? Yes Go to step 2 No Go to step 5
2. AMBIENT TEMPERATURE SENSOR With the scan tool, monitor the ambient temperature in the Totally Integrated Power Module (TIPM). Is the ambient temperature at room temperature? Yes Go to step 3 No Replace the Ambient Temperature Sensor in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
3. TRANSFER CASE SELECTOR SWITCH Using the wiring diagram/schematic as a guide, inspect the wiring and connectors relative to this circuit. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Were any problems found? Yes Repair as necessary. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 4
4. CLUSTER CONTROL NODE Turn the ignition off to the lock position Replace the Transfer Case Selector Switch in accordance with the Service Information. Ignition on, engine not running. With the scan tool, clear Stored DTCs in the CCN and the FDCM. Test drive the vehicle. During the test drive, move the Transfer Case Selector Switch to each position several times in accordance with the Service Information. With the scan tool, read DTCs in the CCN and the FDCM. Does this DTC reset? Yes Replace the Final Drive Control Module (FDCM) in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test complete.
5. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes Repair as necessary. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test complete.

1. ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DTCS PRESENT Ignition on, engine not running. With the scan tool, select View DTCs in the ABS Module. Are there any ABS DTCs present? Yes Perform the appropriate diagnostic procedure. Refer to «DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Diagnosis and Testing»(ref-350047-S40552122482009121400000) . No Go to step 2
2. POWER CONTROL MODULE (PCM) DTCS PRESENT Ignition on, engine not running. With the scan tool, select View DTCs in the PCM. Are there any PCM DTCs present? Yes Before continuing with this diagnostic procedure. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(ref-350089) . No Go to step 3
3. DTC IS ACTIVE Ignition on, engine not running. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to step 4 Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 5
4. VERIFY SET CONDITION NOTE: Check with customer on driving terrain (e.g. mud, sand, snow) for set condition. With the scan tool, erase DTCs. Test drive vehicle on dry paved road. With the scan tool, read DTCs. Is the status Active for this DTC? Yes Replace the Transfer Case Clutch Pack in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test Complete. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
5. INTERMITTENT 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 test the wiring harness and connectors while checking for shorted and open circuits. Using the scan tool, monitor the data related to this circuit while performing the wiggle test. Look for the data to change or for the DTC to reset. Were there any problems found? Yes Repair as necessary. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test Complete.

1. DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read DTCs. Is the status Active for this DTC? Yes Go to step 2 No Go to step 9
2. RELEARN KISS POINT Ignition on, engine running. Place the Transmission in neutral and apply the brakes firmly. Place the Transfer Case Motor Selector Switch in AWD. With the scan tool, run the Final Drive Control Module non-volatile reset command. Place the Transmission in park. Turn the ignition off to the lock position Wait for 10 seconds, and turn Ignition switch to Ignition on, engine not running. With the scan tool, clear stored DTCs in the Final Drive Control Module. Switch the Transfer Case Motor Selector Switch to 4-Low and back to AWD. With the scan tool, read DTCs. Is the DTC status Active? Yes Go to step 3 No Go to step 9
3. (T315) SHIFT MOTOR CONTROL A CIRCUIT OPEN Turn the ignition off to the lock position Disconnect the Transfer Case Motor harness connector. Disconnect the Final Drive Control Module C1 harness connector. Measure the resistance of the (T315) Shift Motor Control A circuit from the Transfer Case Motor harness connector to the Final Drive Control Module C2 harness connector. Is the resistance above 5.0 Ohms? Yes Repair the (T315) Shift Motor Control A circuit for an open. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 4
4. (T316) SHIFT MOTOR CONTROL B CIRCUIT OPEN Measure the resistance of the (T316) Shift Motor Control B circuit from the Transfer Case Motor harness connector to the Final Drive Control Module C2 harness connector. Is the resistance above 5.0 Ohms? Yes Repair the (T316) Shift Motor Control B circuit for an open. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 5
5. (K504) DRIVETRAIN 5 VOLT SUPPLY CIRCUIT OPEN Measure the resistance of the (K504) Drivetrain 5 Volt Supply circuit between the Transfer Case Motor harness connector and the Final Drive Control Module C2 harness connector. Is the resistance above 5.0 Ohms? Yes Repair the open in the (K504) Drivetrain 5 Volt Supply circuit. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 6
6. (T313) MODE SENSOR SIGNAL CIRCUIT HIGH RESISTANCE Measure the resistance of the (T313) Mode Sensor Signal circuit between the Transfer Case Motor harness connector and the Final Drive Control Module C2 harness connector. Is the resistance above 5.0 Ohms? Yes Repair the high resistance in the (T313) Mode Sensor Signal circuit. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 7
7. (K594) DRIVETRAIN SENSOR RETURN CIRCUIT HIGH RESISTANCE Measure the resistance of the (K594) Drivetrain Sensor Return circuit between the Transfer Case Motor harness connector and the Final Drive Control Module C2 harness connector. Is the resistance below 5.0 Ohms? Yes Go to step 8 No Repair the high resistance in the (K594) Drivetrain Sensor Return circuit. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
8. TRANSFER CASE Turn the ignition off to the lock position Inspect the Transfer Case to determine if there are any mechanical conditions preventing the shift motor from engaging in the position selected. Are any mechanical conditions preventing the shift motor from engaging in the position selected? Yes Replace the Transfer Case in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Replace the Final Drive Control Module (FDCM) in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
9. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes Repair as necessary. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test complete, the condition or conditions that originally set this DTC are not present at this time.

1. ANTI-LOCK BRAKE SYSTEM (ABS) MODULE DTCS PRESENT Ignition on, engine not running. With the scan tool, select View DTCs in the ABS Module. Are there any ABS DTCs present? Yes Refer to the symptom list and perform any ABS DTC diagnostic procedures before continuing with this test. No Go to step 2
2. DTC IS ACTIVE Ignition on, engine not running. With the scan tool, select View DTCs. Is the status Active for this DTC? Yes Go to step 3 Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 5
3. AMBIENT TEMPERATURE SENSOR With the scan tool, monitor the ambient temperature in the Totally Integrated Power Module (TIPM). Is the ambient temperature at room temperature? Yes Go to step 4 No Replace the Ambient Temperature Sensor in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
4. VERIFY SET CONDITION NOTE: Check with customer on driving terrain (e.g. mud, sand, snow) for set condition. With the scan tool, erase DTCs. Allow the Transfer Case to cool down. Test drive vehicle on dry paved road. With the scan tool, read DTCs. Is the status Active for this DTC? Yes Replace the Final Drive Control Module (FDCM) in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test Complete. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
5. INTERMITTENT 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 test the wiring harness and connectors while checking for shorted and open circuits. Using the scan tool, monitor the data related to this circuit while performing the wiggle test. Look for the data to change or for the DTC to reset. Were there any problems found? Yes Repair as necessary. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test Complete.

1. CHARGING SYSTEM DTCS PRESENT Ignition on, engine not running. With the scan tool, read DTCs in the Powertrain Control Module. Are there any Charging System or related voltage DTCs present? Yes Perform the appropriate diagnostic procedure. Refer to «DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Diagnosis and Testing»(ref-350089) . No Go to step 2
2. DTC IS ACTIVE With the scan tool, read DTCs in the Final Drive Control Module. Is the status Active for this DTC? Yes Replace the Final Drive Control Module (FDCM) in accordance with the Service information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 3
3. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes Repair as necessary. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test complete.

1. DRIVETRAIN 5 VOLT SUPPLY (REFERENCE) VOLTAGE BELOW 4.8 VOLTS Ignition on, engine not running. With the scan tool, read the Drivetrain 5-volt Supply (Reference) Voltage in the FDCM. Is the voltage below 4.8 volts? Yes Go to step 2 No Go to step 4
2. TRANSFER CASE MOTOR/ENCODER Turn the ignition off to the lock position Disconnect the Transfer Case Motor/Encoder harness connector. Ignition on, engine not running. With the scan tool, read the 5-volt Supply (Reference) Voltage. Is the voltage above 4.75 volts with the Transfer Case Motor harness disconnected? Yes Replace the Transfer Case Encoder/Sensor in accordance with the Service Information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 3
3. (K504) DRIVETRAIN 5 VOLT SUPPLY CIRCUIT SHORT TO GROUND Turn the ignition off to the lock position Disconnect the FDCM harness connector. Measure the resistance between ground and the (K504) Drivetrain 5- volt Supply circuit at the Transfer Case Motor harness connector. Is the resistance below 5.0 ohms? Yes Repair the (K504) Drivetrain 5 Volt Supply circuit for a short to ground. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Replace the Final Drive Control Module in accordance with the Service information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
4. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes Repair as necessary. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test complete.

1. 5 VOLT SUPPLY (REFERENCE) VOLTAGE IS ABOVE 5.2 VOLTS Ignition on, engine not running. With the scan tool, read the Drivetrain 5-volt Supply (Reference) Voltage in the FDCM. Is the voltage above 5.2 volts? Yes Go to step 2 No Go to step 3
2. (K504) DRIVETRAIN 5 VOLT SUPPLY CIRCUIT SHORTED TO VOLTAGE Turn the ignition off to the lock position Disconnect the Transfer Case Encoder/Sensor harness connector. Disconnect the FDCM C1 harness connector. Ignition on, engine not running. Measure the voltage of the (K504) Drivetrain 5 Volt Supply circuit at Transfer Case Encoder/Sensor harness connector. Is there any voltage present? Yes Repair the (K504) Drivetrain 5 Volt Supply circuit for a short to voltage. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Replace the Final Drive Control Module (FDCM) in accordance with the Service information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
3. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes Repair as necessary. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test complete.

1. DTC IS ACTIVE Ignition on, engine not running. With the scan tool, read DTCs in the Final Drive Control Module. Is the status Active for this DTC? Yes Replace the Final Drive Control Module (FDCM) in accordance with the Service Information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test Complete

1. CHECK FOR A DTC C2206-VEHICLE CONFIGURATION MISMATCH NOTE: This DTC must be active for the results of this test to be valid and this DTC will be active when a new module is installed until initialization is performed. Turn the ignition on. With the scan tool, read and record DTCs. With the scan tool, erase DTCs. Perform ECU initialization with drive test on FDCM. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . Cycle the ignition switch from off to on. With the scan tool, read and record DTCs. Does the scan tool display: C2206-VEHICLE CONFIGURATION MISMATCH? Yes Go to step 2 No FDCM is now configured.
2. VERIFY THAT THE CORRECT TRANSFER CASE SWITCH IS INSTALLED NOTE: Verify the correct Transfer Case Switch part number is installed for the correct for the correct Transfer Case. Turn the ignition to the lock position. The correct Transfer Case Switch for the MP 1522 Transfer Case will read 4WD LOCK in the center position. The correct Transfer Case Switch for the MP 3022 Transfer Case will read 4WD AUTO in the center position. Is the correct Transfer Case Switch installed for the correct Transfer Case? Yes Go to step 3 No Replace the Transfer Case Switch in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
3. VERIFY THAT THE TIPM IS CONFIGURED CORRECTLY Turn the ignition on. Check the following data to ensure the TIPM is configured correctly. Engine Displacement (PCM), 2WD 4WD or AWD, Axle ratio N/A, Vehicle Line (BCM), Brake type 1=ESP, Suspension 1, 2 or 3. NOTE: The DTC will be active when a new controller is installed until initialization is performed. Was the TIPM configured correctly? Yes Replace the FDCM in accordance with the Service Information. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Reprogram the appropriate module. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .

Perform the appropriate diagnostic procedure. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing .

Perform the appropriate diagnostic procedure. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing .

1. VERIFY DTC IS ACTIVE NOTE: Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. With the scan tool, read active DTCs. Is this DTC active? Yes Go to step 2 No Refer to «Non-DTC Diagnostics/Communication - Diagnosis and Testing»(ref-350094-S03107740102009121400000) and perform the Stored Lost Communication DTCs diagnostic procedure.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. NOTE: Check for TIPM configuration, CAN B or C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTCs. Does the scan tool display any active DTCs to the conditions listed above? Yes Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing»(ref-350093-S06268540512009121400000) and perform the appropriate diagnostic procedure. No Go to step 3
3. VERIFY THAT THE TCM IS ACTIVE ON THE BUS Ignition on, engine not running. With the scan tool, select Network Diagnostics. Verify that the TCM is active on the bus. Is the TCM active on the bus? Yes Go to step 4 No Refer to «Non-DTC Diagnostics/Communication - Diagnosis and Testing»(ref-350094-S03107740102009121400000) and perform the No Response from TCM diagnostic procedure.
4. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCS With the scan tool, select Network Diagnostics. Is there more than one module with active DTCs "Logged Against" the TCM? Yes Replace/update the TCM in accordance with the service information. Perform the TCM VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure»(ref-350086-S21105755262009121400000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-350093-S36937059432009121400000) .

Perform the appropriate diagnostic procedure. Refer to DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing .

1. ACTIVE DTC Ignition on, engine off. With a scan tool, read FDCM DTCs. Is the DTC active at this time? Yes Perform the appropriate diagnostic procedure. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing»(ref-350093-S06268540512009121400000) No The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors, pay particulate attention to the CAN circuits. Perform the TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .

1. VERIFY DTC IS ACTIVE NOTE: Ensure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. Ignition on, engine not running. With the scan tool, read and record DTCs. With the scan tool, read and record Environmental Data (EV Data). With the scan tool, erase DTCs. Cycle the ignition switch. With the scan tool, read DTCs. Does this DTC reset? Yes Go to step 2 No The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCs With the scan tool, read all active DTCs from all CAN C Bus modules. NOTE: Check for CAN C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTCs. Does the scan tool display any active DTCs related to the conditions listed above? Yes Diagnose and repair the DTCs. Refer to appropriate Service Information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Go to step 3
3. VERIFY THAT THE STEERING ANGLE SENSOR IS ACTIVE ON THE BUS With the scan tool, select ECU View. Verify that the Steering Angle Sensor is active on the bus. Is the Steering Angle Sensor active on the bus? Yes Perform the Stored Lost Communication diagnostic procedure. Refer to «Non-DTC Diagnostics/Communication - Diagnosis and Testing»(ref-350094-S03107740102009121400000) Perform the BODY VERIFICATION TEST. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure»(ref-350093-S36937059432009121400000) . No Go to step 4
4. CHECK FOR ADDITIONAL COMMUNICATION RELATED DTCs With the scan tool, select Network View and select Advanced. Is there more than one module with active DTCs "Logged Against" the STEERING ANGLE SENSOR? Yes Replace/update the Steering Angle Sensor in accordance with the service information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Replace the Final Drive Control Module (FDCM) in accordance with the service information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .

1. POWERTRAIN DTCS PRESENT Ignition on. With the scan tool, read DTCs in the Powertrain Control Module. Are there any active DTCs present? Yes Refer to the symptom list and perform the applicable diagnostic procedure. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Replace the Final Drive Control Module (FDCM) in accordance with the Service Information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .

1. TRANSMISSION DTCS PRESENT Ignition on, engine not running. With the scan tool, read DTCs in the Transmission Control Module. Are there any DTCs present? Yes Perform the appropriate diagnostic procedure. Refer to «DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Diagnosis and Testing»(ref-350086-S01946202332009121400000) . No Replace the Final Drive Control Module (FDCM) in accordance with the Service Information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .

1. ABS DTCS PRESENT Ignition on, engine not running. With the scan tool, read DTCs in the Antilock Brake Controller. Are there any DTCs present? Yes Perform the appropriate diagnostic procedure. Refer to «DTC-Based Diagnostics/MODULE, Antilock Brake (ABS) - Diagnosis and Testing»(ref-350047-S40552122482009121400000) No Replace the Final Drive Control Module (FDCM) in accordance with the Service Information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .

1. STEERING COLUMN CONTROL MODULE DTCS PRESENT Ignition on, engine not running. With the scan tool, read DTCs in the Steering Column Control Module. Are there any DTCs present? Yes Perform the appropriate diagnostic procedure. No Replace the Final Drive Control Module (FDCM) in accordance with the Service Information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .

1. DTC IS ACTIVE NOTE: Ensure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. Ignition on, engine not running. With the scan tool, read DTCs in the Final Drive Control Module. Is the status Active for this DTC? Yes Go to step 2 No Go to step 5
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS NOTE: Check for TIPM configuration, CAN C hardware electrical, VIN Missing/Mismatch, battery or ignition related DTCs. With the scan tool, read all active DTCs from the TIPM and CCN. Does the scan tool display any active DTCs to the conditions listed above? Yes Perform the appropriate diagnostic procedure. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing»(ref-350093-S06268540512009121400000) or. Refer to «DTC-Based Diagnostics/NODE, Cabin Compartment (CCN) - Diagnosis and Testing»(ref-350110-S25562784832009121400000) No Go to step 3
3. AMBIENT TEMPERATURE SENSOR With the scan tool, monitor the ambient temperature in the Totally Integrated Power Module (TIPM). Is the ambient temperature at room temperature? Yes Go to step 4 No Replace the Ambient Temperature Sensor in accordance with the Service Information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
4. TRANSFER CASE SELECTOR SWITCH With the scan tool, monitor the voltages of the transfer case selector switch positions in the CCN. Transfer Case Selector Switch Position Voltage Transfer Case Selector Switch Position Voltage Range Neutral 0.67 volts - 0.95 volts 2WD 1.98 volts - 2.22 volts 4WD AWD (MP3022) 2.62 volts - 2.88 volts 4WD LOCK (MP1522) 3.39 volts - 3.65 volts 4WD LOW 4.05 volts - 4.30 volts Are the voltages of the transfer case selector switch within the specified ranges? Yes Replace the Final Drive Control Module (FDCM) in accordance with the Service Information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Replace the Transfer Case Selector Switch in accordance with the Service Information. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) .
5. INTERMITTENT WIRING AND CONNECTORS The conditions necessary to set this DTC are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. While monitoring the scan tool data relative to this circuit, wiggle test the wiring and connectors. Look for the data to change or for the DTC to reset during the wiggle test. Were any problems found? Yes Repair as necessary. Perform TRANSFER CASE VERIFICATION TEST. See «DTC-Based Diagnostics/MODULE, Final Drive Control (FDCM) - Standard Procedure»(ref-350109-S06114668762009121400000) . No Test complete.

TRANSFER CASE VERIFICATION TEST

1. Disconnect all jumper wires and reconnect all previously disconnected components and connectors.
2. With the scan tool, select clear Stored DTCs.
3. Make sure that all accessories are turned off and that the battery is fully charged.
4. Test drive the vehicle in each Transfer Case range and verify proper operation in each range. To select or deselect 2WD, AWD or 4HI mode (if equipped), vehicle speed must be below 88 Kmh (55 mph) with all wheels at vehicle speed. Shifts will not take place with a wheel speed difference of greater than 21 Kmh (13 mph) between the front and rear wheels. To select or deselect 4LO (if equipped), vehicle speed must be below 5 Kmh (3 mph) with the ignition on, engine not running and the transmission in neutral (automatic transmission) or the clutch pedal pressed (manual transmission). To select or deselect Transfer Case Neutral (if equipped), vehicle speed must be 0 Kmh (0 mph) with the ignition on, engine not running, the brake pedal applied, and the transmission in neutral (automatic transmission) or the clutch pedal pressed (manual transmission). Press the Neutral button (if equipped) on the Transfer Case Selector Switch until the Neutral Indicator is illuminated. WARNING: Apply the parking brake. The vehicle may roll with the Transfer Case in neutral. To verify that the Transfer Case is in Neutral, shift the automatic transmission into reverse and release the brake pedal for three seconds or shift the manual transmission into gear and slowly release the clutch pedal. There should be no vehicle movement if the Transfer Case is in Neutral.
5. With the scan tool, read DTCs in the Totally Integrated Power Module (TIPM) and in the Instrument Cluster (CCN). Are there any DTCs present in the TIPM or in the CCN? Yes Perform the appropriate diagnostic procedure. Refer to «DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Diagnosis and Testing»(ref-350093-S06268540512009121400000) or. Refer to «DTC-Based Diagnostics/NODE, Cabin Compartment (CCN) - Diagnosis and Testing»(ref-350110-S25562784832009121400000) . No Test complete.