Entry And Start System Entry Lock Switch Circuit

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Door Lock. Lexus Is250, Is220D. Gse20 Ale20

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT ENTRY LOCK SWITCH

CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - ENTRY LOCK SWITCH)

CHECK HARNESS AND CONNECTOR (ELECTRICAL KEY OSCILLATOR - ENTRY LOCK SWITCH)

CHECK AND REPLACE ELECTRICAL KEY OSCILLATOR

ENTRY AND START SYSTEM - Entry Lock Switch Circuit


DESCRIPTION

The entry lock switches (trigger switch) are built into the outside handles of the LH/RH door. The certification ECU detects the conditions of the each lock switch.

WIRING DIAGRAM


Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Entry And Start System Entry Lock Switch Circuit


INSPECTION PROCEDURE

1.INSPECT ENTRY LOCK SWITCH


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Entry And Start System Entry Lock Switch Circuit

  1. Remove the outside handle.

  1. Disconnect the connectors.

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection (Symbols)
    		Condition
    		Specified Condition
    o1-1 (TRG-) - o1-3 (TRG+)
    		Lock switch not pushed
    		10 kΩ or higher
    Lock switch pushed
    		Below 1 Ω
    n1-1 (TRG-) - n1-3 (TRG+)
    		Lock switch not pushed
    		10 kΩ or higher
    Lock switch pushed
    		Below 1 Ω


NG
REPLACE OUTSIDE HANDLE ASSEMBLY
OK


2.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - ENTRY LOCK SWITCH)


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Entry And Start System Entry Lock Switch Circuit

  1. Disconnect the P33 ECU connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection (Symbols)
    		Condition
    		Specified Condition
    P33-3 (TSW1) - o1-3 (TRG+)
    		Always
    		Below 1 Ω
    P33-4 (TSW1) - n1-3 (TRG+)
    		Always
    		Below 1 Ω
    P33-3 (TSW1) - Body ground
    		Always
    		10 kΩ or higher
    P33-4 (TSW1) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.CHECK HARNESS AND CONNECTOR (ELECTRICAL KEY OSCILLATOR - ENTRY LOCK SWITCH)


    Lexus Is250, Is220D. Gse20 Ale20.Door Lock.Power Door Lock Control System.Entry And Start System Entry Lock Switch Circuit

  1. Disconnect the door oscillator connector.

  1. Measure the resistance according to the value(s) in the table below.

    Standard resistance:
    Tester Connection
    (Symbols)
    		Condition
    		Specified condition
    o2-9 (TRG-) - o1-1 (TRG-)
    		Always
    		Below 1 Ω
    n2-9 (TRG-) - n1-1 (TRG-)
    		Always
    		Below 1 Ω
    o2-9 (TRG-) - Body ground
    		Always
    		10 kΩ or higher
    n2-9 (TRG-) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK AND REPLACE ELECTRICAL KEY OSCILLATOR

  1. Replace the electrical key oscillator.

  1. Check that the entry LOCK / UNLOCK function operates normally.

    OK:
    Entry LOCK / UNLOCK function operates normally.


NG
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE
OK

END (ELECTRICAL KEY OSCILLATOR IS DEFECTIVE)