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P1572 ASCD BRAKE SWITCH EC-863 < DTC/CIRCUIT DIAGNOSIS > [VQ40DE FOR USA AND CANADA] C D E F G H I J K L M A EC N P O 4. Drive the vehicle for at least 5 consecutive seconds under the following condition. 5. Check 1st trip DTC. If DTC is detected, go to . If DTC is not detected, go to the following step. 6. Drive the vehicle for at least 5 consecutive seconds under the following condition. 7. Check 1st trip DTC. . WITH GST Follow the procedure “WITH CONSULT” above. Diagnosis Procedure INFOID:0000000009481561 A/T MODELS 1. CHECK OVERALL FUNCTION-I With CONSULT 1. Turn ignition switch ON. 2. Select “BRAKE SW1” in “DATA MONITOR” mode with CONSULT. 3. Check “BRAKE SW1” indication under the following conditions. Without CONSULT 1. Turn ignition switch ON. 2. Check voltage between ECM terminal 126 and ground under the following conditions. OK or NG OK >> GO TO 2. NG >> GO TO 3. 2. CHECK OVERALL FUNCTION-II With CONSULT Check “BRAKE SW2” indication in “DATA MONITOR” mode. Without CONSULT Check voltage between ECM terminal 122 and ground under the following conditions. VHCL SPEED SE More than 30 km/h (19 MPH) Selector lever Suitable position VHCL SPEED SE More than 30 km/h (19 MPH) Selector lever Suitable position Driving location Depress the brake pedal for more than CONDITION INDICATION Brake pedal: Slightly depressed OFF Brake pedal: Fully released ON CONDITION VOLTAGE Brake pedal: Slightly depressed Approximately 0V Brake pedal: Fully released Battery voltage CONDITION INDICATION Brake pedal: Fully released OFF Brake pedal: Slightly depressed ON |