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Electronic Control Modules - Electrical Diagnostics: Diagnosis Dodge Magnum I

Communication Devices 5 illustrations ~10351 words

DIAGNOSTIC CODE INDEX

DTCDescription
B210DBATTERY VOLTAGE LOW
B210EBATTERY VOLTAGE HIGH
B21125 VOLT SUPPLY CIRCUIT LOW
B21135 VOLT SUPPLY CIRCUIT HIGH
B2206CURRENT VIN MISSING/MISMATCH
B2215FRONT CONTROL MODULE INTERNAL
B222CVEHICLE CONFIGURATION NOT PROGRAMMED
U0001CAN C BUS
U0019CAN B BUS
U0100LOST COMMUNICATION WITH ECM/PCM
U0101LOST COMMUNICATION WITH TCM
U0103LOST COMMUNICATION WITH ELECTRIC GEAR SHIFT MODULE
U0121LOST COMMUNICATION WITH ANTI-LOCK BRAKE MODULE
U0141LOST COMMUNICATION WITH FRONT CONTROL MODULE
U0151LOST COMMUNICATION WITH OCCUPANT RESTRAINT CONTROLLER (ORC)
U0154LOST COMMUNICATION WITH OCCUPANT CLASSIFICATION MODULE
U0155LOST COMMUNICATION WITH CLUSTER/CCN
U0156LOST COMMUNICATION WITH EOM
U0159LOST COMMUNICATION WITH PARK ASSIST CONTROL MODULE
U0164LOST COMMUNICATION WITH HVAC CONTROL MODULE
U0168LOST COMMUNICATION WITH VEHICLE SECURITY CONTROL MODULE (SKREEM/WCM)
U0169LOST COMMUNICATION WITH SUNROOF CONTROL MODULE
U0181LOST COMMUNICATION WITH HEADLAMP LEVELING TRANSLATOR
U0184LOST COMMUNICATION WITH RADIO
U0186LOST COMMUNICATION WITH AUDIO AMPLIFIER
U0195LOST COMMUNICATION WITH SDARS
U0197LOST COMMUNICATION WITH HANDS FREE PHONE MODULE
U0199LOST COMMUNICATION WITH DRIVER DOOR MODULE
U0200LOST COMMUNICATION WITH PASSENGER DOOR MODULE
U0208LOST COMMUNICATION WITH HEATED SEAT CONTROL MODULE
U0209LOST COMMUNICATION WITH MEMORY SEAT CONTROL MODULE
U0212LOST COMMUNICATION WITH SCCM - CAN B
U0231LOST COMMUNICATION WITH RAIN SENSING MODULE
U1105CAN B SIGNAL MISSING
U1106CAN C SIGNAL MISSING
U1107ECU IN SINGLE-WIRE MODE
U1108ADDITIONAL CAN B ECU DETECTED
U110ALOST COMMUNICATION WITH SCCM - CAN C

DIAGNOSTIC CODE INDEX

Diagnostic Test

  1. 1) CHECK FOR ANY POWERTRAIN CONTROL MODULES DTCS NOTE: Make sure the Battery is in good condition. Using the Midtronics Battery Tester, test the Battery before continuing. NOTE: Inspect the vehicle for after market accessories that may exceed the Generator System output. NOTE: Make sure the generator drive belt is in good operating condition. NOTE: Inspect the fuses in the IPM. If an open fuse is found, use the wire diagram/schematic as a guide, inspect the wiring and connectors for damage. Turn the ignition on. With the scan tool, read active PCM DTC's. Does the scan tool display any active PCM DTC's? Yes Refer to appropriate ENGINE PERFORMANCE - DIAGNOSIS AND TESTING article for the diagnostic test procedure. No Check the above conditions that can cause a low voltage condition. Repair as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) CHECK FOR ANY POWERTRAIN CONTROL MODULES DTCS NOTE: Make sure the Battery is in good condition. Using the Midtronics Battery Tester, test the Battery before continuing. NOTE: Inspect the vehicle for after market accessories that may exceed the Generator System output. NOTE: Make sure the generator drive belt is in good operating condition. NOTE: Inspect the fuses in the IPM. If an open fuse is found, use the wire diagram/schematic as a guide, inspect the wiring and connectors for damage. Turn the ignition on. With the scan tool, read active PCM DTC's. Does the scan tool display any active PCM DTC's? Yes Refer to appropriate ENGINE PERFORMANCE - DIAGNOSIS AND TESTING article for the diagnostic test procedure. No Check the above conditions that can cause a high voltage condition. Repair as necessary. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .

Scheme 23

Scheme 23: Circuit Schematic
Scheme 23: Circuit Schematic
  1. 1) CHECK FOR ACTIVE DTC With the scan tool, read the active DTC's. Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per cycle. With the scan tool, read the active DTC's. Does the scan tool display this DTC as active? Yes Go To step 2) . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
  2. 2) CHECK VIN IN PCM With the scan tool compare the VIN that is programmed into the PCM to the VIN on the vehicle. Does the VIN programmed into the PCM match the vehicles VIN? Yes Inspect the wiring and connectors for damage or shorted circuits. If OK, replace and program the Front Control Module. Refer to «MODULE-FRONT CONTROL»(ref-246912-S19875012372007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . «(Refer to BODY VERIFICATION TEST - VER 1)»(ref-246912-S19033985802007011000000) . No Program the correct VIN in the PCM and retest.
  1. 1) REPLACE THE FRONT CONTROL MODULE IF DTC IS ACTIVE With the scan tool, read the active FCM DTC's. Does the scan tool display this DTC as active? Yes Replace and program the Front Control Module. Refer to «MODULE-FRONT CONTROL»(ref-246912-S19875012372007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
  1. 1) CHECK FOR ACTIVE DTC With the scan tool, read the active DTC's. Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per cycle. With the scan tool, read the active DTC's. Does the scan tool display this DTC as active? Yes Go To step 2) . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
  2. 2) CONFIGURE THE FCM TO THE VEHICLE With the scan tool enter program network configuration and program the FCM to the vehicle configuration. With the scan tool, erase FCM DTC's. Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per cycle. With the scan tool, read the active DTC's. Does the scan tool display this DTC as active? Yes Inspect the wiring and connectors for damage or shorted circuits. If OK, replace and program the Front Control Module. Refer to «MODULE-FRONT CONTROL»(ref-246912-S19875012372007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . «(Refer to BODY VERIFICATION TEST - VER 1)»(ref-246912-S19033985802007011000000) . No Repair is complete.

Scheme 24

Scheme 24: Circuit Schematic
Scheme 24: Circuit Schematic
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE ECM/PCM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the ECM/PCM is active on the bus. Is the ECM/PCM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 ECM/PCM? Yes Replace and program the ECM/PCM. Refer to «MODULE-POWERTRAIN CONTROL»(ref-246912-S21217387632007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE TCM IS ACTIVE ON THE BUS Turn the ignition on. 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 «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 and program the TCM. Refer to «MODULE-TRANSMISSION CONTROL»(ref-246912-S17182014892007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE SHIFTER LEVER ASSEMBLY IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the Shifter Lever Assembly is active on the bus. Is the Shifter Lever Assembly active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 Shifter Lever Assembly? Yes Replace and program the Shifter Lever Assembly. Refer to «MECHANISM-SHIFT»(ref-246913-S36048012382007021300000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE ABS IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the ABS is active on the bus. Is the ABS active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 ABS? Yes Replace the Antilock Brake Module. Refer to «MODULE-ANTILOCK BRAKE»(ref-246912-S33337595162007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE FCM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the FCM is active on the bus. Is the FCM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 FCM? Yes Replace and program the Front Control Module. Refer to «MODULE-FRONT CONTROL»(ref-246912-S19875012372007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE ORC IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the ORC is active on the bus. Is the ORC active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 ORC? Yes Replace the Occupant Restraint Controller. Refer to «OCCUPANT RESTRAINT CONTROLLER»(ref-246929-S07850149422007011000000) . Perform «*ORC VERIFICATION TEST - VER 1»(ref-246997-S18928432262007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE OCM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the OCM is active on the bus. Is the OCM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 OCM? Yes Replace the Occupant Classification Module. Refer to «OCCUPANT CLASSIFICATION MODULE»(ref-246929-S27290378062007011000000) . Perform «*OCS VERIFICATION TEST - VER 1»(ref-246997-S22327701092007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE CCN IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the CCN is active on the bus. Is the CCN active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 CCN? Yes Replace the Cluster. Refer to «INSTRUMENT CLUSTER - SERVICE INFORMATION»(ref-246930-S40788253952007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE EOM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the EOM is active on the bus. Is the EOM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 EOM? Yes Replace/update the Electronic Overhead Module (EOM). Refer to «OVERHEAD CONSOLE - SERVICE INFORMATION»(ref-246938-S30157780132007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read all active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE PTS IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the PTS is active on the bus. Is the PTS active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 PTS? Yes Replace/update the Park Assist Module (PTS). Refer to «PARK ASSIST MODULE»(ref-246925-S11409759442007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE HVAC IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the HVAC is active on the bus. Is the HVAC active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 HVAC? Yes Replace the A/C Heater Control. Refer to «CONTROL-A/C HEATER»(ref-246942-S40101922542007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set the DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE WCM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the WCM is active on the bus. Is the WCM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 WCM? Yes Replace the Sentry Key Remote Entry Module. Refer to «SENTRY KEY REMOTE ENTRY MODULE»(ref-246977-S14491032022007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE SUNR IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the SUNR is active on the bus. Is the SUNR active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 SUNR? Yes Replace the Sunroof Control Module. Refer to «MOTOR/MODULE-SUNROOF»(ref-246939-S13102307992007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE HIDT IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the HIDT is active on the bus. Is the HIDT active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 HIDT? Yes Replace the Headlamp Leveling Module. Refer to «HEADLAMP LEVELING MODULE - EXPORT»(ref-246931-S12351569392007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE RADIO IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the Radio is active on the bus. Is the Radio active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 Radio? Yes Replace the Radio. Refer to «RADIO»(ref-246935-S15177530482007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE AMPLIFIER IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the Amplifier is active on the bus. Is the Amplifier active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 Amplifier? Yes Replace the Amplifier. Refer to «AMPLIFIER»(ref-246935-S08303889762007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE SATELLITE RECEIVER IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the SDARS is active on the bus. Is the SDARS active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 SDARS? Yes Replace Satellite Receiver. Refer to «RECEIVER-SATELLITE»(ref-246935-S35713625062007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set the DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE HFM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the HFM is active on the bus. Is the HFM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 HFM? Yes Replace Hands Free Module. Refer to «HANDS FREE MODULE»(ref-246982-S27659040052007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE DDM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the DDM is active on the bus. Is the DDM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 DDM? Yes Replace the Driver Door Module. Refer to «DOOR MODULE»(ref-246912-S18086243322007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE PDM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the PDM is active on the bus. Is the PDM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 PDM? Yes Replace Passenger Door Module. Refer to «DOOR MODULE»(ref-246912-S18086243322007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE HSM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the HSM is active on the bus. Is the HSM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 HSM? Yes Replace the Heated Seat Module. Refer to «MODULE-HEATED SEATS»(ref-246937-S41946160432007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE MSMD IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the MSMD is active on the bus. Is the MSMD active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 MSMD? Yes Replace the Memory Seat Module. Refer to «MODULE-SEAT MEMORY»(ref-246912-S42280627872007011000000) Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE SCM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the SCM is active on the bus. Is the SCM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 SCM? Yes Replace the Steering Control Module. Refer to «STEERING COLUMN CONTROL MODULE»(ref-246928-S37023054082007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE LRSM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the LRSM is active on the bus. Is the LRSM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 LRSM? Yes Replace the Rain Sensor. Refer to «SENSOR-RAIN»(ref-246936-S27964511862007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .

Scheme 25

Scheme 25: Circuit Schematic
Scheme 25: Circuit Schematic
  1. 1) CHECK FOR ACTIVE DTCS With the scan tool, read the active DTC's. Cycle the ignition switch from off to on at least 5 times, leaving the ignition on for a minimum of 90 seconds per cycle. With the scan tool, read the active DTC's. Does the scan tool display this DTC as active? Yes Go To step 2) . No If the DTC is stored, check for an intermittent condition. Visually inspect the related wiring harness connectors. Look for broken, bent, pushed out, or corroded terminals.
  2. 2) CHECK FRONT CONTROL MODULE FOR U0019 DTC With the scan tool, read Front Control Module active DTC's Does the scan tool display U0019 CAN B BUS - ACTIVE? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) and perform the U0019 diagnostic procedure. No Go To step 3) .
  3. 3) (D55) CAN B BUS (+) CIRCUIT OPEN Turn the ignition off. Disconnect the Front Control Module C1 connector. Turn the ignition on. Measure the voltage of the (D55) CAN B Bus (+) circuit. Is any voltage present on this circuit? Yes Go To step 4) . No Repair the (D55) CAN B Bus (+) circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . «(Refer to BODY VERIFICATION TEST - VER 1)»(ref-246912-S19033985802007011000000) .
  4. 4) (D54) CAN B BUS (-) CIRCUIT OPEN Measure the voltage of the (D54) CAN B Bus (-) circuit. Is any voltage present on this circuit? Yes Replace and program the Front Control Module. Refer to «MODULE-FRONT CONTROL»(ref-246912-S19875012372007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . «(Refer to BODY VERIFICATION TEST - VER 1)»(ref-246912-S19033985802007011000000) . No Repair the (D54) CAN B Bus (-) circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . «(Refer to BODY VERIFICATION TEST - VER 1)»(ref-246912-S19033985802007011000000) .
  1. 1) TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase FCM DTC's. Cycle the ignition from on to off 3 times. Turn the ignition on. With the scan tool, read active FCM DTC's. Does the scan tool display U1106-CAN C SIGNAL MISSING as active? Yes Go To step 2) . 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.
  2. 2) ANTILOCK BRAKE MODULE - INTERNAL SHORT Turn the ignition off. Disconnect the Antilock Brake Module harness connector. Turn the ignition on. With the scan tool, record and erase FCM DTC's. Cycle the ignition from on to off 3 times. Turn the ignition on. With the scan tool, read active FCM DTC's. Does the scan tool display U1106-CAN C SIGNAL MISSING as active? Yes Go To step 3) . No Inspect the wiring and connectors for damage or shorted circuits. If OK, replace the Antilock Brake Module. Refer to «ICU (INTEGRATED CONTROL UNIT)»(ref-246951-S01409115842007011000000) . Perform «ABS VERIFICATION TEST - VER 1»(ref-246948-S28039438982007011000000) .
  3. 3) POWERTRAIN CONTROL MODULE - INTERNAL SHORT Turn the ignition off. Disconnect the Powertrain Control Module C1 harness connector. Turn the ignition on. With the scan tool, record and erase FCM DTC's. Cycle the ignition from on to off 3 times. Turn the ignition on. With the scan tool, read active FCM DTC's. Does the scan tool display U1106-CAN C SIGNAL MISSING as active? Yes Go To step 4) . No Inspect the wiring and connectors for damage or shorted circuits. If OK, replace and program the Powertrain Control Module. Refer to «MODULE-POWERTRAIN CONTROL»(ref-246912-S21217387632007011000000) . Perform «NGC POWERTRAIN VERIFICATION TEST VER - 5»(ref-246912-S34084483822007011000000) .
  4. 4) SHIFTER LEVER ASSEMBLY (NAG1 ONLY)- INTERNAL SHORT Turn the ignition off. NOTE: If the vehicle is not equipped with a NAG1 controller then skip this step. Disconnect the Shifter Lever Assembly harness connector. Turn the ignition on. With the scan tool, record and erase FCM DTC's. Cycle the ignition from on to off 3 times. Turn the ignition on. With the scan tool, read active FCM DTC's. Does the scan tool display U1106-CAN C SIGNAL MISSING as active? Yes Go To step 5) . No Inspect the wiring and connectors for damage or shorted circuits. If OK, replace and program the Shifter Lever Assembly. Refer to «MECHANISM-SHIFT»(ref-246913-S36048012382007021300000) . Perform «NAG1 TRANSMISSION VERIFICATION TEST - VER 1»(ref-246909-S02960750972007011000000) .
  5. 5) TRANSMISSION CONTROL MODULE (NAG1 ONLY)- INTERNAL SHORT Turn the ignition off. NOTE: If the vehicle is not equipped with a NAG1 controller then skip this step. Disconnect the Transmission Control Module C2 harness connector. Turn the ignition on. With the scan tool, record and erase FCM DTC's. Cycle the ignition from on to off 3 times. Turn the ignition on. With the scan tool, read active FCM DTC's. Does the scan tool display U1106-CAN C SIGNAL MISSING as active? Yes Go To step 6) . No Inspect the wiring and connectors for damage or shorted circuits. If OK, replace and program the Transmission Control Module. Refer to «MODULE-TRANSMISSION CONTROL»(ref-246912-S17182014892007011000000) . Perform «NAG1 TRANSMISSION VERIFICATION TEST - VER 1»(ref-246909-S02960750972007011000000) .
  6. 6) STEERING CONTROL MODULE - INTERNAL SHORT Turn the ignition off. Disconnect the Steering Control Module harness connector. Turn the ignition on. With the scan tool, record and erase FCM DTC's. Cycle the ignition from on to off 3 times. Turn the ignition on. With the scan tool, read active FCM DTC's. Does the scan tool display U1106-CAN C SIGNAL MISSING as active? Yes Go To step 7) . No Inspect the wiring and connectors for damage or shorted circuits. If OK, replace and program the Steering Control Module. Refer to «STEERING COLUMN CONTROL MODULE»(ref-246928-S37023054082007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  7. 7) (D65) CAN C BUS (+) CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the Front Control Module C1 harness connector. Turn the ignition on. Measure the voltage between the (D65) CAN C Bus (+) circuit and ground. Is there any voltage present? Yes Repair the (D65) CAN C Bus (+) circuit for a short to voltage. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 8) .
  8. 8) (D64) CAN C BUS (-) CIRCUIT SHORTED TO VOLTAGE Measure the voltage between the (D64) CAN C Bus (-) circuit and ground. Is there any voltage present? Yes Repair the (D64) CAN C Bus (-) circuit for a short to voltage. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 9) .
  9. 9) (D65) CAN C BUS (+) CIRCUIT SHORTED TO GROUND Turn the ignition off. Measure the resistance between ground and the (D65) CAN C Bus (+) circuit. Is any resistance present? Yes Repair the (D65) CAN C Bus (+) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 10) .
  10. 10) (D64) CAN C BUS (-) CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (D64) CAN C Bus (-) circuit. Is any resistance present? Yes Repair the (D64) CAN C Bus (-) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 11) .
  11. 11) (D65) CAN C BUS (+) CIRCUIT SHORTED TO (D64) CAN C BUS (-) CIRCUIT Measure the resistance between the (D65) CAN C Bus (+) circuit and the (D64) CAN C Bus (-) circuit. Is any resistance present? Yes Repair the (D65) CAN C Bus (+) circuit for a short to the (D64) CAN C Bus (-) circuit. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Inspect the wiring and connectors for damage or shorted circuits. If OK, replace and program the Front Control Module. Refer to «MODULE-FRONT CONTROL»(ref-246912-S19875012372007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) TEST FOR INTERMITTENT CONDITION Turn the ignition on. With the scan tool, record and erase FCM DTC's. Cycle the ignition from on to off 3 times. Turn the ignition on. With the scan tool, read active FCM DTC's. Does the scan tool display this DTC as active? Yes Go To step 2) . 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.
  2. 2) ANY CAN B BUS MODULE- INTERNAL FAULT Turn the ignition off. With the scan tool, monitor the active FCM DTCs. While monitoring the scan tool, disconnect each CAN B Bus module one at a time. NOTE: When performing the above step, turn the ignition off (wait one minute) before disconnecting any module. When the module is disconnected turn the ignition on. NOTE: This is to determine if the fault is internal within a module. Check for this DTC to become active after disconnecting each CAN B Bus module the vehicle is equipped with. NOTE: If the DTC becomes stored when a particular CAN B Bus module is disconnected, that module is causing the DTC to set. With all the CAN B Bus modules disconnected did the FCM still set this DTC as active? Yes Go To step 3) . No Replace the module that when disconnected the DTC became stored. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  3. 3) (D55) CAN B BUS (+) CIRCUIT FOR A SHORT TO VOLTAGE Turn the ignition off. Disconnect the Front Control Module C1 harness connector. NOTE: Ensure each CAN B Bus module is disconnected at this time. Turn the ignition on. Measure the voltage between the (D55) CAN B Bus (+) circuit and ground. Is the voltage above 10.0 volts? Yes Repair the (D55) CAN B Bus (+) circuit for a short to voltage. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 4) .
  4. 4) (D54) CAN B BUS (-) CIRCUIT FOR A SHORT TO VOLTAGE NOTE: Ensure each CAN B Bus module is disconnected at this time. Measure the voltage between the (D54) CAN B Bus (-) circuit and ground. Is the voltage above 10.0 volts? Yes Repair the (D54) CAN B Bus (-) circuit for a short to voltage. No Go To step 5) .
  5. 5) (D55) CAN B BUS (+) CIRCUIT FOR A SHORT TO GROUND Turn the ignition off. NOTE: Ensure each CAN B Bus module is disconnected at this time. Measure the resistance between ground and the (D55) CAN B Bus (+) circuit. Is the resistance above 1000.0 ohms? Yes Go To step 6) . No Repair the (D55) CAN B Bus (+) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  6. 6) (D54) CAN B BUS (-) CIRCUIT FOR A SHORT TO GROUND NOTE: Ensure each CAN B Bus module is disconnected at this time. Measure the resistance between ground and the (D54) CAN B Bus (-) circuit. Is the resistance above 1000.0 ohms? Yes Go To step 7) . No Repair the (D54) CAN B Bus (-) circuit for a short to ground. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  7. 7) (D55) CAN B BUS (+) CIRCUIT SHORTED TO THE (D54) CAN B BUS (-) CIRCUIT Measure the resistance between the (D55) CAN B Bus (+) circuit and (D54) CAN B Bus (-) circuit. NOTE: Ensure each CAN B Bus module is disconnected at this time. Is any resistance present? Yes Repair the (D55) CAN B Bus (+) circuit for a short to the (D54) CAN B Bus (-) circuit. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 8) .
  8. 8) (D55) CAN B BUS (+) CIRCUIT OPEN Measure the resistance of the (D55) CAN B Bus (+) circuit between the FCM connector and the Cluster connector. Is the resistance above 10.0 ohms? Yes Repair the (D55) CAN B Bus (+) circuit for an open or high resistance. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 9) .
  9. 9) (D54) CAN B BUS (-) CIRCUIT OPEN Measure the resistance of the (D54) CAN B Bus (-) circuit between the FCM connector and the Cluster connector. Is the resistance above 10.0 ohms? Yes Repair the (D54) CAN B Bus (-) circuit for an open or high resistance. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace and program the Front Control Module. Refer to «MODULE-FRONT CONTROL»(ref-246912-S19875012372007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) RECONFIGURE THE FRONT CONTROL MODULE Turn the ignition on. With the scan tool, select network view and press the gateway button. This will list the CAN modules on the vehicle. Read and record the listed modules. With the scan tool, select FCM, miscellaneous functions then add/remove ECUs. With the scan tool, add or remove the module that was not configured in the FCM. With the scan tool, erase DTC's. Cycle the ignition from on to off 3 times and read the active FCM DTC's. Does the scan tool display this DTC as active? Yes Retest system and attempt to reconfigure the FCM. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Repair is complete. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS ACTIVE NOTE: Ensure 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 the Stored Lost Communication test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read active DTCs from all modules. NOTE: Check for FCM 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 Diagnose and repair the DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a complete list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY THAT THE SCM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the SCM is active on the bus. Is the SCM active on the bus? Yes Go To step 4) . No Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a no response test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  4. 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 SCM? Yes Replace the Steering Control Module. Refer to «STEERING COLUMN CONTROL MODULE»(ref-246928-S37023054082007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Replace/update the module that set this DTC. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  1. 1) VERIFY DTC IS STORED NOTE: Stored faults may indicate a customer perceived intermittent condition. NOTE: Ensure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding. With the scan tool, read stored DTCs. Is this DTC stored? Yes Go To step 2) . No Diagnose the active DTC. Refer to «DIAGNOSTIC CODE INDEX»(ref-246941-S32171940312007011000000) for a list of the symptoms. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  2. 2) CHECK THE ENVIRONMENTAL DATA With the scan tool, read the loss of communication environmental data. Does the loss of communication environmental odometer data match up to any of the previous service procedures listed in the possible causes or are their any stored CAN B or C hardware electrical, battery, ignition voltage, VIN missing/mismatch, FCM configuration DTCs present with match environmental data? Yes These DTCs may have been the result of other service procedures performed. Clear DTCs. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Go To step 3) .
  3. 3) VERIFY INTERMITTENT LOST COMMUNICATION DTC-WIRING CONCERNS Turn the ignition on. With the scan tool, select Network Diagnostics. Is there more than one ECU with stored DTCs "Logged Against" the module and one or more lost communication DTCs stored in the offending module? Yes Verify if the vehicle was recently in for this type of service. Otherwise, visually inspect the related wiring harness for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals. Repair as necessary. No Go To step 4) .
  4. 4) VERIFY INTERMITTENT LOST COMMUNICATION DTC-OFFENDING MODULE Turn the ignition on. With the scan tool, select Network Diagnostics. Is there more than one ECU with stored DTCs "Logged Against" the module and NO lost communication DTCs stored in the offending module? Yes Check for TSB related to this offending module. No Go To step 5) .
  5. 5) VERIFY INTERMITTENT LOST COMMUNICATION DTC-REPORTING MODULE Turn the ignition on. With the scan tool, select Network Diagnostics. Is there ONLY ONE ECU with stored DTCs "Logged Against" the module? Yes Check for TSB related to the module that set this DTC. No Verify if the vehicle was recently in for this type of service. Otherwise, visually inspect the related wiring harness for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals. Repair as necessary.

Scheme 26

Scheme 26: Circuit Schematic
Scheme 26: Circuit Schematic
  1. 1) CHECK THE STATUS OF THE ERROR MESSAGE NOTE: Ensure the vehicle being tested is a CAN BUS VEHICLE. If not, false error messages may be displayed. NOTE: Ensure the scan tool is updated to the latest software. With the scan tool, record the error message. Disconnect the scan tool from the DLC. Cycle the ignition from on to off 3 times. Turn the ignition on. Does the scan tool display this same error message? Yes Go To step 2) . No The conditions that caused this error message to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
  2. 2) (D72) CAN C DIAGNOSTIC (+) CIRCUIT OPEN Turn the ignition off. Disconnect the Front Control Module C1 harness connector. Disconnect the scan tool from the DLC. NOTE: Check the connectors at both the DLC and the FCM. Measure the resistance of the (D72) CAN C Diagnostic (+) circuit between the FCM connector and the DLC. Is the resistance below 5.0 ohms? Yes Go To step 3) . No Repair the (D72) CAN C Diagnostic (+) circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .
  3. 3) (D71) CAN C DIAGNOSTIC (-) CIRCUIT OPEN Measure the resistance of the (D71) CAN C Diagnostic (-) circuit between the FCM connector and the DLC. Is the resistance below 5.0 ohms? Yes Inspect the wiring and connectors for damage or shorted circuits. If OK, replace and program the Front Control Module. Refer to «MODULE-FRONT CONTROL»(ref-246912-S19875012372007011000000) . Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) . No Repair the (D71) CAN C Diagnostic (-) circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-246912-S11713511292007011000000) .

Scheme 27

Scheme 27: Circuit Schematic
Scheme 27: Circuit Schematic

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