4WD Control Module Diagnostic Trouble Code (DTC) Index
WARNING: This page is about a different car, the 2004 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Before carrying out the on-demand self-test, switch the mode selection switch into the suspect 4WD mode (4H or 4L) to verify the customer's concern.
4WD CONTROL MODULE DIAGNOSTIC TROUBLE CODE (DTC) INDEX
| DTC | Description | Source | Action |
|---|---|---|---|
| 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. |
| B1355 | Ignition Run Circuit Failure | 4WD control module | Go To PINPOINT TEST C: THE VEHICLE DOES NOT SHIFT BETWEEN 2WD AND 4WD MODES CORRECTLY . |
| B1483 | Brake Pedal Input Circuit Failure | 4WD control module | Go To PINPOINT TEST D: THE VEHICLE DOES NOT SHIFT BETWEEN 4WD HIGH AND 4WD LOW MODES CORRECTLY . |
| B1485 | Brake Pedal Input Battery Short | 4WD control module | Go To PINPOINT TEST D: THE VEHICLE DOES NOT SHIFT BETWEEN 4WD HIGH AND 4WD LOW MODES CORRECTLY . |
| B1555 | Ignition Run/Start Circuit Failure | 4WD control module | Go To PINPOINT TEST C: THE VEHICLE DOES NOT SHIFT BETWEEN 2WD AND 4WD MODES CORRECTLY . |
| C1728 | Transfer Case Unable to Transition Between 2WD HIGH and 4WD HIGH | 4WD control module | Go To PINPOINT TEST C: THE VEHICLE DOES NOT SHIFT BETWEEN 2WD AND 4WD MODES CORRECTLY . |
| C1729 | Transfer Case Unable to Transition Between | 4WD HIGH and 4WD LOW 4WD control module | Go To PINPOINT TEST D: THE VEHICLE DOES NOT SHIFT BETWEEN 4WD HIGH AND 4WD LOW MODES CORRECTLY . |
| P0500 | Vehicle Speed Sensor (VSS) Malfunction | 4WD control module | Go To PINPOINT TEST D: THE VEHICLE DOES NOT SHIFT BETWEEN 4WD HIGH AND 4WD LOW MODES CORRECTLY . |
| P1812 | Transmission 4WD Mode Select Circuit Failure | 4WD control module | Go To PINPOINT TEST C: THE VEHICLE DOES NOT SHIFT BETWEEN 2WD AND 4WD MODES CORRECTLY . |
| P1815 | Transmission 4WD Mode Select Short Circuit to Ground | 4WD control module | Go To PINPOINT TEST C: THE VEHICLE DOES NOT SHIFT BETWEEN 2WD AND 4WD MODES CORRECTLY . |
| P1816 | Transmission Neutral Safety Switch Circuit Failure | 4WD control module | Go To PINPOINT TEST D: THE VEHICLE DOES NOT SHIFT BETWEEN 4WD HIGH AND 4WD LOW MODES CORRECTLY . |
| P1819 | Transmission Neutral Safety Switch Short Circuit to Ground | 4WD control module | Go To PINPOINT TEST D: THE VEHICLE DOES NOT SHIFT BETWEEN 4WD HIGH AND 4WD LOW MODES CORRECTLY . |
| P1849 | Transmission Transfer Case Contact Plate A Short Circuit to Ground | 4WD control module | Go To PINPOINT TEST C: THE VEHICLE DOES NOT SHIFT BETWEEN 2WD AND 4WD MODES CORRECTLY . |
| P1853 | Transmission Transfer Case Contact Plate B Short Circuit to Ground | 4WD control module | Go To PINPOINT TEST C: THE VEHICLE DOES NOT SHIFT BETWEEN 2WD AND 4WD MODES CORRECTLY . |
| P1857 | Transmission Transfer Case Contact Plate C Short Circuit to Ground | 4WD control module | Go To PINPOINT TEST C: THE VEHICLE DOES NOT SHIFT BETWEEN 2WD AND 4WD MODES CORRECTLY . |
| P1861 | Transmission Transfer Case Contact Plate D Short Circuit to Ground | 4WD control module | Go To PINPOINT TEST C: THE VEHICLE DOES NOT SHIFT BETWEEN 2WD AND 4WD MODES CORRECTLY . |
| P1867 | Transmission Transfer Case Contact Plate General Circuit Failure | 4WD control module | Go To PINPOINT TEST C: THE VEHICLE DOES NOT SHIFT BETWEEN 2WD AND 4WD MODES CORRECTLY . |
| P1891 | Transmission Transfer Case Contact Plate Ground Return Open Circuit | 4WD control module | Go To PINPOINT TEST C: THE VEHICLE DOES NOT SHIFT BETWEEN 2WD AND 4WD MODES CORRECTLY . |
| - | For All Other DTCs | 4WD control module | REFER to MULTIFUNCTION ELECTRONIC CONTROL MODULES . |