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6 CHECK ASCD BRAKE SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Check continuity between ASCD brake switch terminal 2 and park/neutral position relay terminal 3.
SEC213D
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK © GO TO 7.
NG © Repair open circuit or short to ground or short to power in harness or connectors.
7 CHECK ASCD BRAKE SWITCH
Refer to “Component Inspection”, EC-661.
OK or NG
OK © GO TO 8.
NG © Replace ASCD brake switch.
8 CHECK PARK/NEUTRAL POSITION (PNP) RELAY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect park/neutral position switch harness connector.
3. Turn ignition switch “ON”.
4. Check voltage between park/neutral position (PNP) switch terminal 1 and ground with CONSULT-II or tester.
SEC214D
Voltage: Battery voltage
OK or NG
OK © GO TO 13.
NG © GO TO 9.
DTC P1572 ASCD BRAKE SWITCH
Diagnostic Procedure (Cont’d)
EC-654
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