4WD Control Module (PCM) Diagnostic Trouble Code (DTC) Index
WARNING: This page is about a different variant/trim than selected.
DIAGNOSTIC TROUBLE CODE CHART
| DTC | Description | Source | Action |
|---|---|---|---|
| B1317 | Battery Voltage HIGH | 4WD Module (PCM) | REFER to CHARGING SYSTEM - GENERAL INFORMATION . |
| B1318 | Battery Voltage LOW | 4WD Module (PCM) | REFER to CHARGING SYSTEM - GENERAL INFORMATION . |
| B1319 | Driver Door Ajar Circuit Failure | 4WD Module (PCM) | GO to PINPOINT TEST M . |
| B1322 | Driver Door Ajar Circuit Short To Ground | 4WD Module (PCM) | GO to PINPOINT TEST M . |
| B1342 | ECU is Defective | 4WD Module (PCM) | CLEAR the DTCs. REPEAT the 4x4 module (PCM) self test. If DTC B1342 is retrieved, INSTALL a new 4x4 module (PCM). REFER to ELECTRONIC ENGINE CONTROLS . CLEAR the DTCs. REPEAT the self test. |
| B1483 | Brake Pedal Input Circuit Failure | 4WD Module (PCM) | GO to PINPOINT TEST M . |
| B1485 | Brake Pedal Input Short to Battery | 4WD Module (PCM) | GO to PINPOINT TEST M . |
| C1729 | Transfer Case Unable to Transition Between 4H and 4L | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| C1970 | 4WD Low Mode Switch LED Short to Battery | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| C1971 | 4WD Low Mode Switch LED Circuit Failure | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1707 | Transfer Case NEUTRAL or PARK/NEUTRAL Indication Circuit | 4WD Module (PCM) | GO to PINPOINT TEST M . |
| P1812 | Transmission 4-Wheel Drive Mode Select Circuit Failure | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1815 | Transmission 4-Wheel Drive Mode Select Short Circuit to Ground | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1816 | Transmission NEUTRAL Safety Switch Circuit Failure | 4WD Module (PCM) | GO to PINPOINT TEST M . |
| P1819 | Transmission NEUTRAL Safety Switch Circuit Short to Ground | 4WD Module (PCM) | GO to PINPOINT TEST M . |
| P1820 | Transfer Case Clockwise Shift Relay Coil Circuit Failure | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1822 | Transfer Case Clockwise Shift Relay Coil Circuit Short To Battery | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1824 | 4-Wheel Drive Clutch Relay Circuit Failure | 4WD Module (PCM) | GO to PINPOINT TEST H . |
| P1826 | 4-Wheel Drive Low Clutch Relay Short Circuit to Battery | 4WD Module (PCM) | GO to PINPOINT TEST H . |
| P1827 | 4-Wheel Drive Low Clutch Relay Short Circuit to Ground | 4WD Module (PCM) | GO to PINPOINT TEST H . |
| P1828 | Transfer Case Counterclockwise Shift Relay Coil Circuit Failure | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1830 | Transfer Case Counterclockwise Shift Relay Coil Circuit Short To Battery | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1849 | Transfer Case Contact Plate A Short Circuit to Ground | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1853 | Transfer Case Contact Plate B Short Circuit to Ground | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1857 | Transfer Case Contact Plate C Short Circuit to Ground | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1861 | Transfer Case Contact Plate D Short Circuit to Ground | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1867 | Transfer Case Contact Plate General Circuit Failure | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| P1891 | Transfer Case Contact Plate Ground Return Open Circuit | 4WD Module (PCM) | GO to PINPOINT TEST K . |
| U1900 | CAN Communication BUS Fault | 4WD Module (PCM) | REFER to MODULE COMMUNICATIONS NETWORK . |
| U2023 | External Node Fault | 4WD Module (PCM) | REFER to MODULE COMMUNICATIONS NETWORK . |
| U2051 | One Or More Calibration Files Missing/Corrupt | 4WD Module (PCM) | Reprogram/Reflash the 4x4 module. REFER to MODULE COMMUNICATIONS NETWORK . |
| - | For All Other DTCs | 4WD Module (PCM) | REFER to MODULE COMMUNICATIONS NETWORK . |