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EC-410 < COMPONENT DIAGNOSIS > [VQ35HR] P1572 ICC BRAKE SWITCH • Harness connectors E106, M6 >> Repair open circuit or short to ground or short to power in harness or connectors. 7. CHECK ICC BRAKE SWITCH EC-411, "Component Inspection (ICC Brake Switch)" . Is the inspection result normal? YES >> GO TO 4. NO >> Replace ICC brake switch. 8. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect stop lamp switch harness connector. 3. Disconnect ICC brake hold relay harness connector. 4. Check the voltage between stop lamp switch harness connector and ground. 5. Check the voltage between ICC brake hold relay harness connector and ground. Is the inspection result normal? YES >> GO TO 10. NO >> GO TO 9. 9. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit or short to ground in harness or connectors. 10. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Disconnect ECM harness connector. 2. Check the continuity between stop lamp switch harness connector and ECM harness connector. 3. Check the continuity between ICC brake hold relay 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 12. Stop lamp switch Ground Voltage Connector Terminal E110 3 Ground Battery voltage ICC brake hold relay Ground Voltage Connector Terminal E51 3 Ground Battery voltage Stop lamp switch ECM Continuity Connector Terminal Connector Terminal E110 4 M107 122 Existed ICC brake hold relay ECM Continuity Connector Terminal Connector Terminal E51 5 M107 122 Existed |