Four Wheel Drive (4WD) Systems DTCS
4X4 CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Action |
|---|---|---|
| B1317 | Battery Voltage High | GO to PINPOINT TEST B . |
| B1318 | Battery Voltage Low | GO to PINPOINT TEST B . |
| B1342 | Electronic Control Unit (ECU) is Faulted | CLEAR the DTCs. REPEAT the self-test. If DTC B1342 is retrieved again, INSTALL a new 4X4 control module. REFER to 4X4 CONTROL MODULE in this service information. |
| B2900 | Vehicle Identification Number (VIN) Mismatch | CHECK the PCM configuration. REFER to MODULE CONFIGURATION -- FUSION MILAN & MKZ article. |
| P1635 | Tire/Axle Out of Acceptable Range | GO to PINPOINT TEST F . |
| P1824 | Four-Wheel Drive (4WD) Clutch Relay Circuit Failure | GO to PINPOINT TEST D . |
| P1825 | 4WD Clutch Relay Open Circuit | Check for a possible open fuse (B+). GO to PINPOINT TEST D . |
| U0100 | Lost Communication with PCM or Transmission Control Module (TCM) (3.5L only) | REFER to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ article to diagnose the lost communication with the PCM or TCM (3.5L only). |
| U0121 | Lost Communication with Anti-lock Brake System (ABS) Control Module | REFER to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ article to diagnose the lost communication with the ABS control module. |
| U0155 | Lost Communication with IC Control Module | REFER to MODULE COMMUNICATIONS NETWORK -- FUSION, MILAN & MKZ article to diagnose the lost communication with the IC. |
| U0401 | Invalid Data Received From PCM or TCM (3.5L only) | REFER to INTRODUCTION - GASOLINE MODELS article or INTRODUCTION -- FUSION HYBRID, MILAN HYBRID & MKZ HYBRID article to diagnose the accelerator position, engine coolant or keep alive memory fault. |
| U0415 | Invalid Data Received From Anti-lock Brake System (ABS) Control Module | GO to PINPOINT TEST C . |
| U2050 | No Application Present | REPLACE the 4X4 control module. REFER to 4X4 CONTROL MODULE in this service information. REPEAT the self-test. |
| U2051 | One or More Calibration Files Missing/Corrupt | REPLACE the 4X4 control module. REFER to 4X4 CONTROL MODULE in this service information. REPEAT the self-test. |