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NAVIGATION SYSTEM (for Built-in Memory) Steering Pad Switch Circuit

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DTC Code DTC Name
  Steering Pad Switch Circuit
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DESCRIPTION

This circuit sends an operation signal from the steering pad switch assembly to the navigation receiver assembly.

If there is an open in the circuit, the navigation 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 navigation receiver assembly cannot be operated using the steering pad switch assembly, and also the navigation receiver assembly itself cannot function.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

Note:

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).

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PROCEDURE


  1. Click here

    INSPECT STEERING PAD SWITCH ASSEMBLY


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

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


  2. Click here

    INSPECT SPIRAL CABLE SUB-ASSEMBLY


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

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


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


    1. Disconnect the H61 navigation receiver assembly connector.

    2. Disconnect the G40 spiral cable sub-assembly connector.

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

      Standard Resistance:
      Tester Connection Condition Specified Condition
      H61-21 (SW1) - G40-6 (AU1) Always Below 1 Ω
      H61-22 (SW2) - G40-5 (AU2) Always Below 1 Ω
      H61-23 (SWG) - G40-4 (EAU) Always Below 1 Ω
      H61-21 (SW1) - Body ground Always 10 kΩ or higher
      H61-22 (SW2) - Body ground Always 10 kΩ or higher
      H61-23 (SWG) - Body ground Always 10 kΩ or higher

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    REPLACE STEERING PAD SWITCH ASSEMBLYClick here

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    REPLACE SPIRAL CABLE SUB-ASSEMBLYClick here

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    REPAIR OR REPLACE HARNESS OR CONNECTOR

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    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLEClick here