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EC-554 < COMPONENT DIAGNOSIS > [HR16DE (WITHOUT EURO-OBD)] P1564 ASCD STEERING SWITCH 2. Select “MAIN SW”, “CANCEL SW”, “RESUME/ACC SW” and “SET SW” in “DATA MONITOR” mode with 3. Check each item indication under the following conditions. Without CONSULT-III 1. Turn ignition switch ON. 2. Check the voltage between ECM harness connector terminals as follows. Is the inspection result normal? YES >> GO TO 8. NO >> GO TO 3. 3. CHECK ASCD STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Disconnect combination switch harness connector M30. 4. Check the continuity between combinarion switch and ECM harness connector. 5. Also check harness for short to ground and short to power. 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 or short to power in harness or connectors. 5. CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT Monitor item Condition Indication MAIN SW MAIN switch Pressed ON Released OFF CANCEL SW CANCEL switch Pressed ON Released OFF RESUME/ACC SW RESUME/ACCELERATE switch Pressed ON Released OFF SET SW SET/COAST switch Pressed ON Released OFF (+) (–) Condition Voltage Connector Terminal Connector Terminal E16 94 (ASCD steering switch signal) E16 95 MAIN switch: Pressed Approx. 0V CANSEL switch: Pressed Approx. 1V SET/COAST switch: Pressed Approx. 2V RESUME/ACCELERATE switch: Pressed Approx. 3V All ASCD steering switches: Released Approx. 4V Combination switch ECM Continuity Terminal Connector Terminal 15 E16 95 Existed |