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EC-302 < COMPONENT DIAGNOSIS > [HR16DE (WITH EURO-OBD)] ASCD BRAKE SWITCH ASCD BRAKE SWITCH Description INFOID:0000000001671083 When the brake pedal is depressed, ASCD brake switch is turned OFF and stop lamp switch is turned ON. for the ASCD function. Component Function Check INFOID:0000000001671084 1. CHECK FOR ASCD BRAKE SWITCH FUNCTION With CONSULT-III 1. Turn ignition switch ON. 2. Select “BRAKE SW1” in “DATA MONITOR” mode with CONSULT-III. 3. Check “BRAKE SW1” 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 >> INSPECTION END. NO >> Go to Diagnosis Procedure INFOID:0000000001671085 1. CHECK OVERALL FUNCTION-I Check which type of transmission the vehicle is equipped with. Is the inspection result normal? A/T >> GO TO 2. M/T >> GO TO 6. 2. CHECK ASCD BRAKE SWITCH POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect ASCD brake switch harness connector. 3. Turn ignition switch ON. 4. Check the voltage between ASCD brake switch harness connector and ground. Is the inspection result normal? YES >> GO TO 4. NO >> GO TO 3. 3. DETECT MALFUNCTIONING PART Monitor item Condition Indication BRAKE SW1 Brake pedal and/or clutch pedal Slightly depressed OFF Brake pedal and clutch pedal Fully released ON ECM Ground Condition Voltage Connector Terminal E16 100 (ASCD brake switch signal) Ground Brake pedal and/or clutch pedal Slightly depressed Approx. 0V Brake pedal and clutch pedal Fully released Battery voltage ASCD brake switch Ground Voltage Connector Terminal E36 (LHD models) M205 (RHD models) 1 Ground Battery voltage |