Transfer Case DTCS
TRANSFER CASE (4WD CONTROL MODULE) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Source | Action |
|---|---|---|---|
| B1317 | Battery Voltage High | 4WD control module | CHECK the battery and charging system. REFER to GENERATORS & REGULATORS . |
| B1318 | Battery Voltage Low | 4WD control module | CHECK the battery and charging system. REFER to GENERATORS & REGULATORS . |
| B1342 | ECU is Defective | 4WD control module | CLEAR the DTCs. REPEAT the 4WD control module self-test. If DTC B1342 is retrieved, INSTALL a new 4WD control module. REFER to FOUR-WHEEL DRIVE (4WD) CONTROL MODULE . CLEAR the DTCs. REPEAT the self-test. |
| B2105 | Throttle Position Input Out of Range Low | 4WD control module | Go To PINPOINT TEST A . |
| B2106 | Throttle Position Input Out of Range High | 4WD control module | Go To PINPOINT TEST A . |
| C1728 | Transfer Case Unable to Transition Between 2H and 4H. | 4WD control module | Go To PINPOINT TEST C . |
| C1729 | Transfer Case Unable to Transition Between 4WD HIGH and 4WD LOW | 4WD control module | Go To PINPOINT TEST C . |
| C1979 | IWE Solenoid Circuit Failure | 4WD control module | Go To PINPOINT TEST A . |
| C1980 | IWE Solenoid Short to Battery | 4WD control module | Go To PINPOINT TEST A . |
| P1812 | Transmission 4-Wheel Drive Mode Select Circuit Failure | 4WD control module | Go To PINPOINT TEST A . |
| P1815 | Transmission 4-Wheel Drive Mode Select Short Circuit to Ground | 4WD control module | Go To PINPOINT TEST A . |
| P1824 | Transmission 4-Wheel Drive Clutch Relay Circuit Failure | 4WD control module | Go To PINPOINT TEST A . |
| P1826 | Transmission 4-Wheel Drive Low Clutch Relay Short Circuit to Battery | 4WD control module | Go To PINPOINT TEST A . |
| P1827 | Transmission 4-Wheel Drive Low Clutch Relay Short Circuit to Ground | 4WD control module | Go To PINPOINT TEST A . |
| 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 . |
| U1900 | CAN Communication BUS Fault | 4WD control module | REFER to MODULE COMMUNICATIONS NETWORK . |
| U1950 | UBP Communication BUS Fault | 4WD control module | REFER to MODULE COMMUNICATIONS NETWORK . |
| U2023 | External Node Fault | 4WD control module | REFER to MODULE COMMUNICATIONS NETWORK . |
| U2306 | Invalid UBP Data From Instrument Cluster (Node 60) | 4WD control module | REFER to MODULE COMMUNICATIONS NETWORK . |
| U2226 | Invalid UBP Data From PCM (Node 10) | 4WD control module | REFER to MODULE COMMUNICATIONS NETWORK . |
| - | For All Other DTCs | 4WD control module | REFER to MULTIFUNCTION ELECTRONIC MODULE . |