Navigation System Steering Pad Switch Circuit

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200
Navigation Multi Info Display. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT STEERING PAD SWITCH ASSEMBLY

CONFIRM MODEL

INSPECT SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY

CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY)

INSPECT SPIRAL CABLE SUB-ASSEMBLY

CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY)

NAVIGATION SYSTEM - Steering Pad Switch Circuit


DESCRIPTION

This circuit sends an operation signal from the steering pad switch assembly to the multi-media module receiver assembly.
If there is an open in the circuit, the audio system cannot be operated using the steering pad switch assembly.
If there is a short in the circuit, the same condition as when a switch is continuously depressed occurs.
Therefore, the multi-media module receiver assembly cannot be operated using the steering pad switch assembly, and also the multi-media module receiver assembly itself cannot function.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Navigation Multi Info Display.Navigation System.Navigation System Steering Pad Switch Circuit


INSPECTION PROCEDURE

NOTICE:
The vehicle is equipped with a Supplemental Restraint System (SRS) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precaution for Supplemental Restraint System (Click here).
1.INSPECT STEERING PAD SWITCH ASSEMBLY

  1. Remove the steering pad switch assembly (Click here).

  1. Inspect the steering pad switch assembly (Click here).



NG
REPLACE STEERING PAD SWITCH ASSEMBLY (Click here)
OK


2.CONFIRM MODEL

  1. Choose the model to be inspected.

    Model
    Result
    		Proceed to
    w/ Vehicle Stability Control System
    		A
    w/o Vehicle Stability Control System
    		B


B
Go to step 5
A


3.INSPECT SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY

  1. Remove the spiral with sensor cable sub-assembly (Click here).

  1. Inspect the spiral with sensor cable sub-assembly (Click here).



NG
REPLACE SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY (Click here)
OK


4.CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - SPIRAL WITH SENSOR CABLE SUB-ASSEMBLY)

  1. Disconnect the F77 multi-media module receiver assembly connector.

  1. Disconnect the E122 spiral with sensor cable sub-assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    F77-30 (SW1) - E122-6 (AU1)
    		Always
    		Below 1 Ω
    F77-31 (SW2) - E122-5 (AU2)
    		Always
    		Below 1 Ω
    F77-32 (SWG) - E122-3 (EAU)
    		Always
    		Below 1 Ω
    F77-30 (SW1) - Body ground
    		Always
    		10 kΩ or higher
    F77-31 (SW2) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)

5.INSPECT SPIRAL CABLE SUB-ASSEMBLY

  1. Remove the spiral cable sub-assembly (Click here).

  1. Inspect the spiral cable sub-assembly (Click here).



NG
REPLACE SPIRAL CABLE SUB-ASSEMBLY (Click here)
OK


6.CHECK HARNESS AND CONNECTOR (MULTI-MEDIA MODULE RECEIVER ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY)

  1. Disconnect the F77 multi-media module receiver assembly connector.

  1. Disconnect the E122 spiral cable sub-assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    F77-30 (SW1) - E122-6 (AU1)
    		Always
    		Below 1 Ω
    F77-31 (SW2) - E122-5 (AU2)
    		Always
    		Below 1 Ω
    F77-32 (SWG) - E122-3 (EAU)
    		Always
    		Below 1 Ω
    F77-30 (SW1) - Body ground
    		Always
    		10 kΩ or higher
    F77-31 (SW2) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (Click here)