Lighting System Acc Signal Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

READ VALUE USING INTELLIGENT TESTER (IGNITION SWITCH)

CHECK HARNESS AND CONNECTOR (BATTERY - MAIN BODY ECU)

LIGHTING SYSTEM - ACC Signal Circuit


DESCRIPTION

This circuit detects the ignition switch state (ACC or off) and sends it to the main body ECU.

WIRING DIAGRAM


Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Lighting (Int).Lighting System.Lighting System Acc Signal Circuit


INSPECTION PROCEDURE

NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
1.READ VALUE USING INTELLIGENT TESTER (IGNITION SWITCH)

  1. Using the intelligent tester, read the Data List (LandCruiser RM000000PKV0J5X.html).

    Main Body
    Tester Display
    		Measurement Item/Range
    		Normal Condition
    		Diagnostic Note
    ACC SW
    		Ignition switch ACC signal / ON or OFF
    		ON: Ignition switch ACC
    OFF: Ignition switch off
    		-
    OK:
    The display is as specified in the normal condition column.


NG
Go to step 2
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (LandCruiser RM000002CE20QGX.html)

2.CHECK HARNESS AND CONNECTOR (BATTERY - MAIN BODY ECU)


    Land Cruiser, Land Cruiser Prado. Grj150 Trj150,155 Kdj150,155 Lj150, Gdj150,155.Lighting (Int).Lighting System.Lighting System Acc Signal Circuit

  1. Remove the main body ECU (LandCruiser RM000003WBO05FX.html).

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    A-29 (ACC) - Body ground
    		Ignition switch ACC
    		11 to 14 V
    Text in Illustration
    *a
    		Front view of wire harness connector
    (to Main Body ECU)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) (LandCruiser RM000003WBO05FX.html)