1991 LEXUS SC400 Service Repair Manual

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Page 753 of 4087

LEXUS SC400 1991 Service Repair Manual Door Key Lock and Unlock Switch Circuit CIRCUIT DESCRIPTION The door key lock and unlock switch is built in the door key cylinder. When the key is turned to the lock side, terminal 3 of the switch is

Page 754 of 4087

LEXUS SC400 1991 Service Repair Manual OKNG OKNG INSPECTION PROCEDURE 1Check door key lock and unlock switch. C OK P1. Remove the door trim and service hole cover. 2. Disconnect the door ley lock and unlock switch con- nector. Check cont

Page 755 of 4087

LEXUS SC400 1991 Service Repair Manual OKOK NG NG Check key unlock warning switch. Check harness and connectors between ECU and key unlock warning switch, key unlock warning switch and body ground (See page IN±27). Replace key unlock wa

Page 756 of 4087

LEXUS SC400 1991 Service Repair Manual OKNG OKNG INSPECTION PROCEDURE 1Check key unlock warning switch. C OK PDisconnect key unlock warning switch connector. Check continuity between terminal 9 and 10 of key un- lock warning switch connec

Page 757 of 4087

LEXUS SC400 1991 Service Repair Manual NG OK 1 2 Proceed to next circuit inspection shown on matrix chart (See page BE±371) Check luggage compartment door opener main switch and opener switch. Check harness and connectors between ECU an

Page 758 of 4087

LEXUS SC400 1991 Service Repair Manual OKNG OKNG INSPECTION PROCEDURE 1Check luggage compartment door opener main switch and opener switch. C OK P OK C Disconnect the luggage compartment door opener main switch and opener switch connecto

Page 759 of 4087

LEXUS SC400 1991 Service Repair Manual 1 2 NG OK Proceed to next circuit inspection shown on matrix chart (See page BE±371) Check door open detection switch. Check harness and connectors between ECU and door open detection switch, door

Page 760 of 4087

LEXUS SC400 1991 Service Repair Manual OKNG OKNG INSPECTION PROCEDURE 1Check door open detection switch C OK P1. Remove the door trim and service hole cover. 2. Disconnect door open detection switch connector. Check continuity between ter
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