|
|
P1572 ICC BRAKE SWITCH EC-437 < COMPONENT DIAGNOSIS > [VQ37VHR] C D E F G H I J K L M A EC N P O NO-2 >> M/T models: GO TO 8. 2. CHECK OVERALL FUNCTION-II With CONSULT-III Select “BRAKE SW2” and check indication under the following conditions. Without CONSULT-III Check the voltage between ECM harness connector and ground. Is the inspection result normal? YES >> GO TO 22. NO >> GO TO 16. 3. CHECK ICC BRAKE SWITCH POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect ICC brake switch harness connector. 3. Turn ignition switch ON. 4. Check the voltage between ICC brake switch harness connector and ground. Is the inspection result normal? YES >> GO TO 5. NO >> GO TO 4. 4. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit or short to ground in harness or connectors. 5. CHECK ICC BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check the continuity between ICC brake switch harness connector and ECM harness connector. 4. Also check harness for short to ground and short to power. Is the inspection result normal? YES >> GO TO 7. Monitor item Condition Indication BRAKE SW2 Brake pedal Slightly depressed ON Fully released OFF ECM Ground Condition Voltage Connector Terminal M107 122 (Stop lamp switch signal) Ground Brake pedal Slightly depressed Battery voltage Fully released Approx. 0V ICC brake switch Ground Voltage Connector Terminal E114 1 Ground Battery voltage ICC brake switch ECM Continuity Connector Terminal Connector Terminal E114 2 M107 126 Existed |