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P1564 ICC STEERING SWITCH EC-425 < COMPONENT DIAGNOSIS > [VQ37VHR] C D E F G H I J K L M A EC N P O 1. Turn ignition switch ON. 2. Select “MAIN SW”, “CANCEL SW”, “RESUME/ACC SW”, “SET SW” and “DIST SW” in “DATA MONITOR” 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 and ground. Is the inspection result normal? YES >> GO TO 8. NO >> GO TO 3. 3. CHECK ICC STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Disconnect combination switch harness connector M303. 4. Check the continuity between combination 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. Monitor item Condition Indication MAIN SW MAIN switch Pressed ON Released OFF CANCEL SW CANCEL switch Pressed ON Released OFF RESUME/ACC SW RESUME/ACCEL- Pressed ON Released OFF SET SW SET/COAST switch Pressed ON Released OFF DIST SW DISTANCE switch Pressed ON Released OFF ECM Ground Condition Voltage Connector Terminal M107 101 (ICC steering switch signal) Ground MAIN switch: Pressed Approx. 0V CANCEL switch: Pressed Approx. 1.3V DISTANCE switch: Pressed Approx. 2.2V SET/COAST switch: Pressed Approx. 3.0V RESUME/ACCELERATE switch: Pressed Approx. 3.7V All ICC steering switches: Released Approx. 4.3V Combination switch ECM Continuity Terminal Connector Terminal 16 M107 108 Existed |