4x4 Module (PCM) Diagnostic Trouble Code (DTC) Index
WARNING: This page is about a different car, the 2005 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
DTC INDEX
| DTC | Description | Source | Action |
|---|---|---|---|
| B1317 | Battery Voltage High | 4x4 Module (PCM) | CHECK the battery and charging system. REFER to CHARGING SYSTEM - GENERAL INFORMATION . |
| B1318 | Battery Voltage Low | 4x4 Module (PCM) | CHECK the battery and charging system. REFER to CHARGING SYSTEM - GENERAL INFORMATION . |
| B1342 | ECU Is Defective | 4x4 Module (PCM) | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved, INSTALL a new 4x4 module (integral to PCM). REFER to ELECTRONIC ENGINE CONTROLS . CLEAR the DTCs. REPEAT the self-test. |
| C1979 | Integrated Wheel-Ends (IWE) Solenoid Circuit Failure | 4x4 Module (PCM) | GO to PINPOINT TEST B . |
| C1980 | IWE Solenoid Circuit Short to Battery | 4x4 Module (PCM) | GO to PINPOINT TEST B . |
| P1824 | 4-Wheel Drive Clutch Relay Circuit Failure | 4x4 Module (PCM) | GO to PINPOINT TEST E . |
| P1826 | 4-Wheel Drive Low Clutch Relay Short Circuit to Battery | 4x4 Module (PCM) | GO to PINPOINT TEST E . |
| P1827 | 4-Wheel Drive Low Clutch Relay Short Circuit to Ground | 4x4 Module (PCM) | GO to PINPOINT TEST E . |
| U1900 | CAN Communication Bus Fault - Receive Error | 4x4 Module (PCM) | Missing CAN network message. REFER to MODULE COMMUNICATIONS NETWORK . |
| U2023 | Fault Received From External Node | 4x4 Module (PCM) | Invalid/faulted CAN wheel speed message data. REFER to MODULE COMMUNICATIONS NETWORK . |
| U2051 | One or More Calibration Files Missing/Corrupt | 4x4 Module (PCM) | This DTC is cleared when reprogramming. REFLASH the 4x4 module (PCM) after the vehicle as-built data is successfully uploaded; this DTC cannot be cleared by the diagnostic tool. |