4X4 Control Module DTC Chart
WARNING: This page is about a different variant/trim than selected.
4X4 CONTROL MODULE DTC CHART
| DTC | Description | Source | Action |
|---|---|---|---|
| B1317 | Battery Voltage High | 4X4 Control Module | Go to Pinpoint Test M . |
| B1318 | Battery Voltage Low | 4X4 Control Module | Go to Pinpoint Test M . |
| B1342 | ECU is Defective | 4X4 Control Module | CLEAR the DTC. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new 4X4 control module. REFER to 4X4 Control Module . REPEAT the self-test. |
| B1555 | Ignition Run/Start Circuit Failure | 4X4 Control Module | Go to Pinpoint Test L . |
| C1729 | Transfer Case Unable to Transition Between 4H and 4L | 4X4 Control Module | Go to Pinpoint Test P . |
| C1979 | IWE Solenoid Circuit Failure | 4X4 Control Module | Go to Pinpoint Test N . |
| C1980 | IWE Solenoid Short to Battery | 4X4 Control Module | Go to Pinpoint Test N . |
| P1812 | 4-Wheel Drive Mode Select Circuit Failure | 4X4 Control Module | Go to Pinpoint Test P . |
| P1815 | 4-Wheel Drive Mode Select Short Circuit to Ground | 4X4 Control Module | Go to Pinpoint Test P . |
| P1824 | 4-Wheel Drive Clutch Relay Circuit Failure | 4X4 Control Module | Go to Pinpoint Test Q . |
| P1825 | 4-Wheel Drive Clutch Relay Open Circuit | 4X4 Control Module | Go to Pinpoint Test Q . |
| P1826 | 4-Wheel Drive Low Clutch Relay Circuit to Battery | 4X4 Control Module | Go to Pinpoint Test Q . |
| P1827 | 4-Wheel Drive Low Clutch Relay Circuit to Ground | 4X4 Control Module | Go to Pinpoint Test Q . |
| P1849 | Transfer Case Contact Plate 'A' Short Circuit to Ground | 4X4 Control Module | Go to Pinpoint Test P . |
| P1853 | Transfer Case Contact Plate 'B' Short Circuit to Ground | 4X4 Control Module | Go to Pinpoint Test P . |
| P1857 | Transfer Case Contact Plate 'C' Short Circuit to Ground | 4X4 Control Module | Go to Pinpoint Test P . |
| P1861 | Transfer Case Contact Plate 'D' Short Circuit to Ground | 4X4 Control Module | Go to Pinpoint Test P . |
| P1867 | Transfer Case Contact Plate General Circuit Failure | 4X4 Control Module | Go to Pinpoint Test P . |
| P1886 | 4X4 Initialization Failure | 4X4 Control Module | CLEAR the DTC. REPEAT the self test. If the DTC still reports, CONFIRM the 4X4 control module part number is correct for the vehicle. |
| P1891 | Transfer Case Contact Plate Ground Return Open Circuit | 4X4 Control Module | Go to Pinpoint Test P . |
| U0100 | Lost Communication with ECM/PCM | 4X4 Control Module | REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the lost communication with the PCM. |
| U0101 | Lost Communication with TCM | 4X4 Control Module | REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the lost communication with the Transmission Control Module (TCM). |
| U0121 | Lost Communication with Anti-Lock Brake System (ABS) Control Module | 4X4 Control Module | REFER to MODULE COMMUNICATIONS NETWORK article to diagnose the lost communication with the ABS module. |
| U2023 | Fault Received from External Node | 4X4 Control Module | REFER to VEHICLE DYNAMIC SYSTEMS article to diagnose the wheel speed sensor fault. |
| U2050 | No Application Present | 4X4 Control Module | Method 3 programming fault. REFER to MODULE CONFIGURATION article for 4X4 control module programming information. |