Vehicle Dynamics Module (VDM)
VEHICLE DYNAMICS MODULE (VDM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTCs | Description | Action |
|---|---|---|
| B1317 | Battery Voltage High | Go to PINPOINT TEST A . |
| B1318 | Battery Voltage Low | Go to PINPOINT TEST A . |
| B1342 | ECU is Faulted | INSTALL a new VDM . Refer to VEHICLE DYNAMICS MODULE (VDM) in this information. SET the ride height. Refer to RIDE HEIGHT ADJUSTMENTS in this information. Carry out the Pneumatic Test. TEST the system for normal operation. |
| B1566 | Door Ajar Circuit Short to Ground | Doors/running boards open during self-test. VERIFY doors/running boards signals are working. Refer to INTERIOR LIGHTING SYSTEM for door ajar switch diagnosis and EXTERIOR TRIM & ORNAMENTATION for retractable running board diagnosis. |
| B2477 | Module Configuration Failure | INSTALL a new VDM . Refer to VEHICLE DYNAMICS MODULE (VDM) in this information. SET the ride height. Refer to RIDE HEIGHT ADJUSTMENTS in this information. Carry out the Pneumatic Test. TEST the system for normal operation. |
| C1724 | Air Suspension Height Sensor Power Circuit Failure | Go to PINPOINT TEST B . |
| C1726 | Air Suspension Rear Pneumatic Failure | Go to PINPOINT TEST C . |
| C1770 | Air Suspension Vent Solenoid Output Circuit Failure | Go to PINPOINT TEST D . |
| C1790 | Air Suspension LR Air Spring Solenoid Output Circuit Failure | Go to PINPOINT TEST E . |
| C1795 | Air Suspension RR Air Spring Solenoid Output Circuit Failure | Go to PINPOINT TEST E . |
| C1810 | Air Suspension Height Sensor Delta Out of Range | Go to PINPOINT TEST K . |
| C1830 | Air Suspension Compressor Relay Circuit Failure | Go to PINPOINT TEST J . |
| C1885 | Air Suspension RR Height Sensor Circuit Failure | Go to PINPOINT TEST F . |
| C1893 | Air Suspension LR Height Sensor Circuit Failure | Go to PINPOINT TEST F . |
| C1990 | New Control Module Initialization (requires ride height calibration and pneumatic test pass) | Refer to Clearing DTC C1990 or C1991 in Clearing DTCs C1990, C1991, C2001 and C2002 . |
| C1991 | Plant Ride Height Setting and/or Tests Incomplete | Refer to Clearing DTC C1990 or C1991 in Clearing DTCs C1990, C1991, C2001 and C2002 . |
| C1964 | Compressor Run Time Exceeded | Go to PINPOINT TEST J . |
| C2001 | Ride Height Calibration Error | ADJUST the ride height, refer to RIDE HEIGHT ADJUSTMENTS in this information. CLEAR the DTCs. REPEAT the self-test. |
| C2002 | Pneumatic Test Failure | VERIFY that all Pneumatic Test pre-conditions are met, refer to PNEUMATIC TEST in this information. REPEAT the Pneumatic Test. If all conditions are met, the scan tool can communicate with the VDM and the module and is still unable to complete the Pneumatic Test, go to PINPOINT TEST C . |
| U0073 | Control Module Communication Bus A Off | Refer to MODULE COMMUNICATIONS NETWORK to diagnose the High Speed Controller Area Network (HS-CAN) bus. |
| U0100 | Lost Communication with Powertrain Control Module (PCM) | Refer to MODULE COMMUNICATIONS NETWORK to diagnose the HS-CAN bus. |
| U0140 | Lost Communication with Body Control Module | Refer to MODULE COMMUNICATIONS NETWORK to diagnose the HS-CAN bus. |
| U0155 | Lost Communication with Instrument Cluster | Refer to MODULE COMMUNICATIONS NETWORK to diagnose the HS-CAN bus. |
| U2011 | Module Transmitted Invalid Data | CLEAR the DTC. REPEAT the self-test. If DTC U2011 returns, INSTALL a new VDM . Refer to VEHICLE DYNAMICS MODULE (VDM) in this information. CLEAR the DTC. REPEAT the self-test. |
| U2050 | Application Not Present | INSTALL a new VDM . Refer to VEHICLE DYNAMICS MODULE (VDM) in this information. CLEAR the DTC. REPEAT the self-test. |