1991 LEXUS SC400 Service Repair Manual

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Page 745 of 4087

LEXUS SC400 1991 Service Repair Manual NGOK NG OK 1 2 Check P/W fuse. Check voltage between terminal +B2 of ECU connector and body ground. Check and repair harness and connectors between ECU and battery (See page IN±27). Check for short

Page 746 of 4087

LEXUS SC400 1991 Service Repair Manual OKNG NGOK *1: The power source is supplied to the actuator (doorlock motor, luggage compartment door opener mo- tor) through the theft deterrent and door lock ECU. Accordingly, if a short circuit

Page 747 of 4087

LEXUS SC400 1991 Service Repair Manual NG Check operating sound of door lock motor. OK NG OK Check door lock motor. Check and harness connectors between ECU and door lock motor (See page IN±27). Replace door lock motor. 1 2 WIRING DIAGR

Page 748 of 4087

LEXUS SC400 1991 Service Repair Manual NGOK NGOK OKNG INSPECTION PROCEDURE 1Check operating sound of door lock motor. C OK Hint Check operating sound of door lock motor, when door lock control switch is pushed to the lock side and unlock

Page 749 of 4087

LEXUS SC400 1991 Service Repair Manual NG Check voltage between terminal 1 of lug- gage compartment door opener motor and body ground. OK NG OK Check luggage compartment door opener motor. Proceed to next circuit inspection shown on matri

Page 750 of 4087

LEXUS SC400 1991 Service Repair Manual OKNG OKNG INSPECTION PROCEDURE 1Check voltage between terminal 1 of luggage compartment door opener motor and body ground. C OK P1. Remove luggage compartment trim rear cover. 2. Disconnect the opene

Page 751 of 4087

LEXUS SC400 1991 Service Repair Manual Door Lock Control Switch Circuit CIRCUIT DESCRIPTION When the door lock control switch is pushed to the lock side, Lock terminal of the swi\ tch is grounded, and when the switch is pushed to the unlo

Page 752 of 4087

LEXUS SC400 1991 Service Repair Manual NGOK OKNG OKNG *1: malfunction of the ECU can be considered possibleonly when the problem symptom is the following:  Lock and/or unlock using the Door Lock Con- trol Switch cannot be done, neith
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