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P1572 ASCD BRAKE SWITCH EC-413 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] C D E F G H I J K L M A EC N P O 6. CHECK ASCD BRAKE SWITCH EC-414, "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 harness connector. 3. Check voltage between stop lamp switch terminal 1 and ground with CONSULT or tester. OK or NG OK >> GO TO 9. NG >> GO TO 8. 8. DETECT MALFUNCTIONING PART Check the following. • Harness connectors M31, E152 • Fuse block (J/B) connector M60 • 10A fuse • Harness for open or short between stop lamp switch and battery >> 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. Refer to Wiring Diagram. 3. Also check harness for short to ground and short to power. OK >> GO TO 10. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 10. CHECK STOP LAMP SWITCH EC-414, "Component Inspection" OK or NG OK >> GO TO 11. BBIA0373E Voltage: Battery voltage WBIA0545E Continuity should exist. |