|
|
ABS <4WD> - Troubleshooting 35B-19 Inspection Procedure 5 In the inspection by MUT-II service data, the parking brake switch is not turned ON or turn OFF. Probable cause ABS-ECU optimizes the ABS control when pulling the parking brake lever, parking brake switch signal is used as support. If there is a fault in the parking brake switch system, ABS control is not optimized. D Malfunction of parking brake switch D Malfunction of wiring harness or connector D Malfunction of hydraulic unit and ABS-ECU OK NG NG Check the harness wire. Between parking brake switch and ABS-ECU Replace the hydraulic unit and ABS-ECU. OK NG OK Check the trouble symptom. Repair NG Repair Check the following connectors: B-123, C-26, C-128 <R.H. drive vehicles>, C-130 <L.H. drive vehicles>, D-23 Measure at the ABS-ECU connector B-123. Disconnect the connector, and measure at the harness side connector. D Measure by pulling or releasing the parking brake lever. D Continuity between 1 and body earth OK: Continuity <Pulling the lever> OK: No continuity <Releasing the lever> NG Repair NG OK Check the trouble symptom. Check the following connector: B-123 OK Replace the parking brake switch. (Refer to GROUP 36.) NG Repair Check the parking brake switch installation condition. |