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EC-412 < DTC/CIRCUIT DIAGNOSIS > [QR25DE] P1572 BRAKE PEDAL POSITION SWITCH Always drive vehicle at a safe speed. NOTE: This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle. 4. Check DTC. YES >> Proceed to . NO >> GO TO 4. 4. PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B 1. Drive the vehicle for at least 5 consecutive seconds as per the following conditions. CAUTION: Always drive vehicle at a safe speed. NOTE: This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle. 2. Check DTC. YES >> Proceed to . NO >> INSPECTION END Diagnosis Procedure INFOID:0000000011278128 1. CHECK DTC PRIORITY If DTC P1572 is displayed with DTC P0603, P0604, P0605, P606, P0607, P060A, or P060B, first perform the trouble diagnosis for DTC P0603, P0604, P0605, P606, P0607, P060A, or P060B. YES >> Perform diagnosis of applicable. Refer to . NO >> GO TO 2. 2. CHECK OVERALL FUNCTION-1 With CONSULT 1. Turn ignition switch ON. 2. Select “BRAKE SW1” in “DATA MONITOR” mode of “ENGINE” using CONSULT. 3. Check “BRAKE SW1” indication as per the following conditions. Without CONSULT 1. Turn ignition switch ON. 2. Check the voltage between ECM harness connector terminals as per the following. Vehicle speed More than 30 km/h (19 mph) Selector lever Suitable position Vehicle speed More than 30 km/h (19 mph) Selector lever Suitable position Driving location Depress the brake pedal for more Monitor item Condition Indication BRAKE SW1 Brake pedal Slightly depressed OFF Fully released ON |