Diagnostic Tests: Notes
DTC INDEX
| DTC | Description |
|---|---|
| DTC 13 | 2WD CONTROLLER IN 4WD VEHICLE |
| DTC 14 | CPU ERROR |
| DTC 15 | LOW OR HIGH IGNITION VOLTAGE |
| DTC 17 | EXCESSIVE DUMP TIME |
| DTC 18 | EXCESSIVE ISOLATION TIME |
| DTC 21 | "G" SENSOR OUTPUT FAILURE |
| DTC 22 | BRAKE SWITCH FAILURE |
| DTC 24 | OPEN OR SHORTED 4X4 INPUT SIGNAL |
| DTC 32 | PUMP MOTOR FAILURE |
| DTC 35 | EHCU VALVE RELAY FAILURE |
| DTCS 41, 42, 43, 44, 45 Or 46 | ISOLATION/DUMP SOLENOID VALVE FAILURE |
| DTC 51 | LEFT FRONT WHEEL SPEED SENSOR OPEN OR SHORTED |
| DTC 52 | RIGHT FRONT WHEEL SPEED SENSOR OPEN OR SHORTED |
| DTC 53 | REAR WHEEL SPEED SENSOR OPEN OR SHORTED |
| DTC 61 | LEFT FRONT MISSING SENSOR SIGNAL |
| DTC 62 | RIGHT FRONT MISSING SENSOR SIGNAL |
| DTC 63 | REAR WHEEL SPEED SENSOR MISSING |
| DTC 64 | SIMULTANEOUS DROP-OUT OF FRONT SPEED SENSOR SIGNALS |
| DTC 65 | ABNORMAL WHEEL SPEED SENSOR SIGNAL INPUT |
NOTE:
Before any testing is attempted the battery should be fully charged and all connections and terminals cleaned and tightened to insure proper continuity and ground. Check system operation before and after performing any of the following diagnostic procedures, and after completing any repairs. To aid in wire color and terminal identification and/or component location, see WIRING DIAGRAMS . Refer to illustration for EHCU harness connector terminal identification. See Figure.