Audio And Visual System (For Radio And Display Type) Steering Pad Switch Circuit

Audio Visual Telematics. Land Cruiser. Urj200, 202 Grj200 Vdj200
Audio Video. Land Cruiser. Urj200, 202 Grj200 Vdj200

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT STEERING PAD SWITCH ASSEMBLY

INSPECT SPIRAL CABLE SUB-ASSEMBLY

CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY)

AUDIO AND VISUAL SYSTEM (for Radio and Display Type) - Steering Pad Switch Circuit


DESCRIPTION

This circuit sends an operation signal from the steering pad switch assembly to the radio and display 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 the switch is continuously depressed occurs.
Therefore, the radio and display receiver assembly cannot be operated using the steering pad switch assembly, and the radio and display receiver assembly itself cannot function.

WIRING DIAGRAM


Land Cruiser. Urj200, 202 Grj200 Vdj200.Audio Video.Audio And Visual System (For Radio Receiver Type).Audio And Visual System (For Radio And Display Type) Steering Pad Switch Circuit


INSPECTION PROCEDURE

CAUTION:
The vehicle is equipped with an SRS (Supplemental Restraint System) which includes components such as airbags. Before servicing (including removal or installation of parts), be sure to read the precautionary notice for the SRS (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.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


3.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - SPIRAL CABLE SUB-ASSEMBLY)

  1. Disconnect the F124 radio and display 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
    		Condition
    		Specified Condition
    F124-21 (SW1) - E122-6 (AU1)
    		Always
    		Below 1 Ω
    F124-22 (SW2) - E122-5 (AU2)
    		Always
    		Below 1 Ω
    F124-23 (SWG) - E122-3 (EAU)
    		Always
    		Below 1 Ω
    F124-21 (SW1) - Body ground
    		Always
    		10 kΩ or higher
    F124-22 (SW2) - Body ground
    		Always
    		10 kΩ or higher
    F124-23 (SWG) - 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)