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P1572 ASCD BRAKE SWITCH EC-799 < COMPONENT DIAGNOSIS > [VQ40DE] C D E F G H I J K L M A EC N P O 4. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 6. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 6. CHECK ASCD BRAKE SWITCH EC-803, "Component Inspection" OK or NG OK >> GO TO 11. NG >> Replace ASCD brake switch. 7. CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect stop lamp switch (2) harness connector. - ASCD brake switch (1) 3. Check voltage between stop lamp switch terminal 1 and ground OK or NG OK >> GO TO 9. NG >> GO TO 8. 8. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit or short to ground or short to power in harness or connectors. 9. CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Disconnect ECM harness connector. 2. Check harness continuity between ECM terminal 101 and stop lamp switch terminal 2. 3. Also check harness for short to ground and short to power. OK or NG OK >> GO TO 10. NG >> Repair open circuit or short to ground or short to power in harness or connectors. Continuity should exist. MBIB1214E Voltage: Battery voltage PBIB1184E Continuity should exist. |