Vehicle Dynamic Suspension
VEHICLE DYNAMIC MODULE (VDM) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTCs | Description | Source | Perform Test |
|---|---|---|---|
| B1317 | Battery voltage high | VDM | GO to PINPOINT TEST C . |
| B1318 | Battery voltage low | VDM | GO to PINPOINT TEST C . |
| B1342 | ECU is defective | VDM | INSTALL a new VDM. REFER to AIR SUSPENSION CONTROL MODULE . SET the ride height. REFER to RIDE HEIGHT ADJUSTMENTS . CARRY OUT the pneumatic test. TEST the system for normal operation. |
| C1445 | Vehicle speed signal circuit failure | VDM | GO to SYMPTOM CHART . |
| C1724 | Air suspension height sensor power circuit failure | VDM | GO to PINPOINT TEST D . |
| C1725 | Air suspension front pneumatic failure | VDM | GO to PINPOINT TEST E . |
| C1726 | Air suspension rear pneumatic failure | VDM | GO to PINPOINT TEST E . |
| C1760 | Air suspension rear height sensor signal circuit failure | VDM | GO to PINPOINT TEST F . |
| C1770 | Air suspension vent solenoid output circuit failure | VDM | GO to PINPOINT TEST G . |
| C1790 | Air suspension LR air spring/shock solenoid output circuit failure | VDM | GO to PINPOINT TEST H . |
| C1795 | Air suspension RR air spring/shock solenoid output circuit failure | VDM | GO to PINPOINT TEST H . |
| C1830 | Air suspension compressor relay circuit failure | VDM | GO to PINPOINT TEST I . |
| C1840 | Air suspension disable switch circuit failure | VDM | GO to PINPOINT TEST J . |
| C1873 | Air suspension RF air spring solenoid output circuit failure | VDM | GO to PINPOINT TEST H . |
| C1877 | Air suspension LF air spring solenoid output circuit failure | VDM | GO to PINPOINT TEST H . |
| C1881 | Air suspension RF height sensor circuit failure | VDM | GO to PINPOINT TEST F . |
| C1889 | Air suspension LF height sensor circuit failure | VDM | GO to PINPOINT TEST F . |
| C1964 | Air suspension compressor actual run time exceeded allowed run time | VDM | Allow the air compressor to cool down. CLEAR the DTC. REPEAT the self-test. |
| C1990 | New control module initialization (requires ride height calibration and pneumatic test pass) | VDM | REFER to "CLEARING DTC C1990 OR C1991 ". |
| C1991 | Plant ride height setting and/or tests incomplete | VDM | REFER to "CLEARING DTC C1990 OR C1991 ". |