TCS Control Unit
- TCS control unit has one LED. See Figure . Self-diagnostic system is functioning as long as engine is running. To obtain complete self-diagnostic results, vehicle must be driven at least 19 MPH (30 km/h), then LED checked while engine is running. The malfunction code is indicated by number of LED flashes.
- A long (0.5 second) LED flash indicates number of ten digits. Short flash (0.3 second) indicates number of single digits. See Fig 1 . For trouble code identification, see TCS TROUBLE CODE IDENTIFICATION table. If TCS control unit displays Code 13, see THROTTLE CONTROL MODULE under DIAGNOSIS & TESTING.
- After reading codes, see TCS DIAGNOSTIC SYMPTOM CHART under SELF-DIAGNOSTICS to determine which test procedure to follow. This control unit does not have a memory for self-diagnostic results. The malfunction code is erased each time ignition switch is turned off.
TCS TROUBLE CODE IDENTIFICATION
| Code No. | Malfunction |
|---|---|
| 1 | Front Left Solenoid Valve Circuit For ABS Actuator |
| 2 | Front Right Solenoid Valve Circuit For ABS Actuator |
| 3 Or 4 | Rear Solenoid Valve Circuit For ABS Actuator |
| 5 | Left Front Wheel Sensor Circuit |
| 6 | Right Front Wheel Sensor Circuit |
| 7 | Right Rear Wheel Sensor Circuit |
| 8 | Left Rear Wheel Sensor Circuit |
| 9 | ABS Actuator Motor Circuit Open Or Short, Or ABS Actuator Motor Relay Terminal |
| 10 | ABS Actuator Solenoid Valve Relay Circuit Malfunction |
| 13 | Secondary Throttle Opening Signal Circuit Open, Throttle Signal Circuit Open Or Fail-Safe For TCM |
| 14 | Left Side Pressure Solenoid Valve Circuit For TCS Actuator |
| 15 | Right Side Pressure Solenoid Valve Circuit For TCS Actuator |
| 16 | TCS Control Unit |
| 17 | TCS Pump Relay Coil Circuit Open |
| 18 | TCS Operating Oil Pressure In TCS Actuator Abnormal |
| 19 | TCS Operating Oil Pressure Circuit For TCS Actuator |