Electronic Control Modules - Electrical Diagnostics: Diagnosis Dodge Cab & Chassis R3500 HD

DIAGNOSTIC CODE INDEX

DIAGNOSTIC CODE INDEX

Scheme 1

Diagnostic Test

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. (D52) DIAGNOSTIC CAN C (+) CIRCUIT OPEN Turn the ignition off. Disconnect the Totally Integrated Power Module C6 harness connector. Disconnect the scan tool from the DLC. Measure the resistance of the (D52) Diagnostic CAN C (+) circuit between the TIPM 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 the Totally Integrated Power Module in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Repair the (D52) Diagnostic CAN C (+) circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .

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. (D51) DIAGNOSTIC CAN C (-) CIRCUIT OPEN Turn the ignition off. Disconnect the Totally Integrated Power Module C6 harness connector. Disconnect the scan tool from the DLC. Measure the resistance of the (D51) Diagnostic CAN C (-) circuit between the TIPM 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 the Totally Integrated Power Module in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Repair the (D51) Diagnostic CAN C (-) circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .

Scheme 2

1. TEST FOR INTERMITTENT CONDITION NOTE: Check for any TSB(s) related to the condition. If a TSB applies, perform the procedure outlined in the TSB before continuing. Turn the ignition on. NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, select ECU View. NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network. Does the scan tool display a red X next to the sensor? Yes Go To step 2 . No The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.
2. (F202) FUSED IGNITION SWITCH OUTPUT (RUN/START) CIRCUIT OPEN OR SHORTED Turn the ignition off. Disconnect the Steering Angle Sensor harness connector. Turn the ignition on. Using a 12-volt test light connected to ground, check the (F202) Fused Ignition Switch Output (Run/Start) circuit. Does the test light illuminate brightly? Yes Go To step 3 . No Repair the (F202) Fused Ignition Switch Output (Run/Start) circuit for an open or short. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
3. (Z455) GROUND CIRCUIT OPEN Turn the ignition off. Using a 12-volt test light connected to 12-volts, check the (Z455) ground circuit. Does the test light illuminate brightly? Yes Go To step 4 . No Repair the (Z455) ground circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
4. (D65) CAN C BUS (+) CIRCUIT OPEN Disconnect the TIPM C6 harness connector. Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM C6 harness connector and the Steering Angle Sensor connector. Is resistance below 5.0 ohms? Yes Go To step 5 . No Repair the (D65) CAN C Bus (+) circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
5. (D64) CAN C BUS (-) CIRCUIT OPEN Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM C6 harness connector and the Steering Angle Sensor connector. Is resistance below 5.0 ohms? Yes Replace the Steering Angle Sensor in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Repair the (D264) CAN C Bus (-) circuit for an open. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .

Scheme 3

1. TEST FOR INTERMITTENT CONDITION Turn the ignition on. NOTE: Ensure the IOD fuse is installed and battery voltage is between 10.0 and 16.0 volts. With the scan tool, select ECU View. NOTE: A red X will be next to the module that is not communicating, indicating that the module is not active on the Bus network. A green check indicates that the module is active on the Bus network. NOTE: Check the TIPM for any active CAN C hardware DTCs, perform DTC before proceeding. Does the scan tool display a red X next to the module? Yes Go To step 2 . No The no response condition is not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.
2. (A104) FUSED B(+) CIRCUIT OPEN OR SHORTED Turn the ignition off. Disconnect the Transmission Control Module C2 harness connector. Using a 12-volt test light connected to ground, check the (A104) Fused B(+) circuit. Does the test light illuminate brightly? Yes Go To step 3 . No Repair the (A104) Fused B(+) circuit for an open or short. Perform the appropriate VERIFICATION TEST.
3. (Z133) GROUND CIRCUIT OPEN Using a 12-volt test light connected to 12-volts, check each (Z133) ground circuit. Does the test light illuminate brightly for each circuit? Yes Go To step 4 . No Repair the (Z133) ground circuit for an open. Perform the appropriate VERIFICATION TEST.
4. (D65) CAN C BUS (+) CIRCUIT OPEN Turn the ignition off. Disconnect the TIPM C6 harness connector. Measure the resistance of the (D65) CAN C Bus (+) circuit between the TIPM connector and the Transmission Control Module C2 connector. Is resistance below 5.0 ohms? Yes Go To step 5 . No Repair the (D65) CAN C Bus (+) circuit for an open. Perform the appropriate VERIFICATION TEST.
5. (D64) CAN C BUS (-) CIRCUIT OPEN Measure the resistance of the (D64) CAN C Bus (-) circuit between the TIPM connector and the Transmission Control Module C2 connector. Is resistance below 5.0 ohms? Yes Replace and program the Transmission Control Module in accordance with the service information. Perform the appropriate VERIFICATION TEST. No Repair the (D64) CAN C Bus (-) circuit for an open. Perform the appropriate VERIFICATION TEST.

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 the «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) for a list of the symptoms.
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, TIPM configuration DTCs present with matching environmental data? Yes These DTCs may have been the result of other service procedures performed. Clear DTCs. No Go To step 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. 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. 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.

1. CHECK FOR ANY POWERTRAIN/ENGINE 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 TIPM. 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/ECM DTC's. Does the scan tool display any active DTC's? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) for the diagnostic test procedure. No Check the above conditions that can cause a low voltage condition. Repair as necessary.

1. CHECK FOR ANY POWERTRAIN/ENGINE 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 TIPM. 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/ECM DTC's. Does the scan tool display any active DTC's? Yes Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) for the diagnostic test procedure. No Check the above conditions that can cause a high voltage condition. Repair as necessary.

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 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. 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 Totally Integrated Power Module in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Program the correct VIN in the PCM and retest.

1. REPLACE THE TOTALLY INTEGRATED POWER MODULE IF DTC IS ACTIVE With the scan tool, read the active DTC's. Does the scan tool display this DTC as active? Yes Replace and program the Totally Integrated Power Module in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . 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. 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 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. CONFIGURE THE TIPM TO THE VEHICLE With the scan tool enter program network configuration and program the TIPM to the vehicle configuration. With the scan tool, erase TIPM 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 Totally Integrated Power Module in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Repair is complete.

1. FINAL DRIVE CONTROL MODULE The Final Drive Control Module has detected an internal failure. View repair Repair Replace the Final Drive Control Module in accordance with the Service Information. Perform «FDCM VERIFICATION TEST»(ref-303781-S04848787062008103100000) .

Scheme 4

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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/update the ECM/PCM in accordance with the service information. Perform the appropriate VERIFICATION TEST. No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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 (PCM) or TCM (diesel) in accordance with the service information. Perform the appropriate VERIFICATION TEST. No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 3 .
3. VERIFY THAT THE FDCM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the FDCM is active on the bus. Is the FDCM active on the bus? Yes Go To 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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 FDCM? Yes Replace/update the Final Drive Control Module in accordance with the service information. Perform the appropriate VERIFICATION TEST. No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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/update the Antilock Brake Module in accordance with the service information. Perform «*ABS VERIFICATION TEST»(ref-303797-S09068351562008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

Diagnostic Procedure

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test procedure. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Go To 3 .
3. VERIFY THAT THE SAS IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the SAS is active on the bus. Is the SAS active on the bus? Yes Go To 4 . No See «DIAGNOSIS AND TESTING»(ref-303801-S30677895052008103100000) for No Response diagnostic procedures. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .
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 SAS? Yes Replace/update the Steering Angle Sensor (internal to the clockspring) in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 3 .
3. VERIFY THAT THE TIPM IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the TIPM is active on the bus. Is the TIPM active on the bus? Yes Go To 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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 TIPM? Yes Replace/update the Totally Integrated Power Module (TIPM) in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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/update the Occupant Restraint Controller in accordance with the service information. Perform «VERIFICATION TEST - SUPPLEMENTAL RESTRAINT SYSTEM»(ref-303812-S00608946672008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test procedure.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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/update the Cluster (CCN) in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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) in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test procedure.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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/update the A/C Heater Control in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace/update the module that set the DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test procedure.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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/update the Sentry Key Remote Entry Module in accordance with the service information. Perform «SKREEM/SKIM VERIFICATION TEST»(ref-303847-S05597624732008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test procedure.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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/update the Sunroof Motor/Module in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test procedure.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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/update the Radio in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test procedure.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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/update the Amplifier in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test procedure.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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/update the Satellite Receiver in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace/update the module that set the DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test procedure.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 3 .
3. VERIFY THAT THE VES IS ACTIVE ON THE BUS Turn the ignition on. With the scan tool, select Network Diagnostics. Verify that the VES is active on the bus. Is the VES active on the bus? Yes Go To 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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 VES? Yes Replace/update the Monitor/DVD Media System in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

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 2 . No Refer to the «*STORED LOST COMMUNICATION DTCS»(ref-303801-S08670265672008103100000) test procedure.
2. CHECK FOR ANY OF THE FOLLOWING ACTIVE DTCS With the scan tool, read 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 Diagnose and repair the DTC. Refer to the appropriate ELECTRICAL DIAGNOSTICS article. No Go To 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 4 . No Refer to the NO RESPONSE test procedure. Refer to «DIAGNOSTIC CODE INDEX»(ref-303801-S25624446322008103100000) .
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/update the Hands Free Module in accordance with the service information. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Replace/update the module that set this DTC in accordance with the service information. Perform the appropriate VERIFICATION TEST.

1. RECONFIGURE THE TOTALLY INTEGRATED POWER 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 TIPM, miscellaneous functions then add/remove ECUs. With the scan tool, add or remove the module that was not configured in the TIPM. With the scan tool, erase DTC's. Cycle the ignition from on to off 3 times and read the active TIPM DTC's. Does the scan tool display this DTC as active? Yes Retest system and attempt to reconfigure the TIPM. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) . No Repair is complete. Perform «BODY VERIFICATION TEST - VER 1»(ref-303801-S12649440912008103100000) .

1. PERFORM BODY VERIFICATION TEST NOTE: If the SKIM, PCM or TIPM was replaced, refer to the service information for proper programming procedures. Disconnect all jumper wires and reconnect all previously disconnected components and connectors. Ensure that all accessories are turned off. Ensure that the battery is fully charged. If the Instrument Cluster was replaced, disconnect the negative battery cable for 5 seconds to power down the TIPM. Then, reconnect the battery negative cable and turn the ignition on for 15 seconds to allow the Instrument Cluster to learn the VIN. If the Instrument Cluster was replaced and the vehicle is equipped with VTSS, cycle the key in the driver door cylinder lock switch to enable VTSS. Program the tire size, the country code, the radio EQ setting, all of the RKE transmitters (if RKE Module was replaced), and all other options as necessary. With the scan tool, record and erase all DTCs from ALL modules. Turn the ignition off, wait 5 seconds, then turn the ignition on. If repairs were made to any of the HVAC door actuator circuits, with the scan tool in HVAC, select System Tests and then select Actuator DTC Detection. The test must pass before proceeding to the next step. If repairs were made to any of the HVAC doors, linkage, door actuators, or door actuator circuits, with the scan tool in HVAC, select System Tests and then select Actuator Calibration Test. The test must pass before proceeding to the next step. Start and run the engine for 2 minutes while operating all functions of the system that caused the original concern. With the scan tool, select ECU View and check for DTCs in the modules. Are DTCs present in any module or is the original condition still present? Yes The repair is not complete. Refer to the related information for the DTC or symptom that is still present. No The repair is complete.