Four Wheel Drive Systems
4WD CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Action |
|---|---|---|---|
| B1317 | Battery Voltage High | 4WD Control Module | Check GENERATORS & REGULATORS |
| B1318 | Battery Voltage Low | 4WD Control Module | Check GENERATORS & REGULATORS |
| B1319 | Driver Door Ajar Circuit Failure | 4WD Control Module | Go To HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS |
| B1322 | Driver Door Ajar Circuit Short To Ground | 4WD Control Module | Go To HANDLES, LOCKS, LATCHES AND ENTRY SYSTEMS |
| B1342 | ECU Is Defective | 4WD Control Module | Clear DTC. Repeat 4WD control module self-test. If DTC B1342 is retrieved, install a new 4WD control module. Clear DTC and repeat self-test. |
| B1355 | Ignition Run Circuit Failure | 4WD Control Module | Go To Pinpoint Test C |
| B1483 | Brake Pedal Input Circuit Failure | 4WD Control Module | Go To Pinpoint Test D |
| B1485 | Brake Pedal Input Battery Short | 4WD Control Module | Go To Pinpoint Test D |
| B1555 | Ignition Run/Start Circuit Failure | 4WD Control Module | Go To Pinpoint Test C |
| C1728 | Transfer Case Unable To Transition Between 2WD High & 4WD High | 4WD Control Module | Carry Out electronic shift function test. Refer to Pinpoint Test A |
| C1729 | Transfer Case Unable To Transition Between 4WD High & 4WD Low | 4WD Control Module | Carry Out electronic shift function test. Refer to Pinpoint Test A |
| P0500 | Vehicle Speed Sensor (VSS) Malfunction | 4WD Control Module | Go To Pinpoint Test D |
| P1707 | Neutral Tow Indicator Circuit Failure | 4WD Control Module | Verify that neutral tow indicator lamp is connected and functional then go to Pinpoint Test E |
| P1804 | Transmission 4WD High Indicator Circuit Failure | 4WD Control Module | Go to INSTRUMENT CLUSTER |
| P1806 | Transmission 4WD High Indicator Short Circuit To Battery | 4WD Control Module | Go to INSTRUMENT CLUSTER |
| P1808 | Transmission 4WD Low Indicator Circuit Failure | 4WD Control Module | Go to INSTRUMENT CLUSTER |
| P1810 | Transmission 4WD Low Indicator Short Circuit To Battery | 4WD Control Module | Go to INSTRUMENT CLUSTER |
| P1812 | Transmission 4WD Mode Select Circuit Failure | 4WD Control Module | Go To Pinpoint Test C |
| P1815 | Transmission 4WD Mode Select Short Circuit To Ground | 4WD Control Module | Go To Pinpoint Test C |
| P1816 | Transmission Neutral Safety Switch Circuit Failure | 4WD Control Module | Go To Pinpoint Test D |
| P1819 | Transmission Neutral Safety Switch Short Circuit To Ground | 4WD Control Module | Go To Pinpoint Test D |
| P1849 | Transmission Transfer Case Contact Plate A Short Circuit To Ground | 4WD Control Module | Go To Pinpoint Test C |
| P1853 | Transmission Transfer Case Contact Plate B Short Circuit To Ground | 4WD Control Module | Go To Pinpoint Test C |
| P1857 | Transmission Transfer Case Contact Plate C Short Circuit To Ground | 4WD Control Module | Go To Pinpoint Test C |
| P1861 | Transmission Transfer Case Contact Plate D Short Circuit To Ground | 4WD Control Module | Go To Pinpoint Test C |
| P1867 | Transmission Transfer Case Contact Plate General Circuit Failure | 4WD Control Module | Go To Pinpoint Test C |
| P1891 | Transmission Transfer Case Contact Plate Ground Return Open Circuit | 4WD Control Module | Go To Pinpoint Test C |