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AUDIO AND VISUAL SYSTEM(except 8 Speakers) Steering Pad Switch Circuit

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DTC Code DTC Name
  Steering Pad Switch Circuit
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DESCRIPTION

This circuit sends operation signals from the steering pad switch assembly to the radio receiver assembly.

If there is an open in the circuit, the audio and visual 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 radio receiver assembly cannot be operated using the steering pad switch assembly, also the radio receiver assembly itself will not function.

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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

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.

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PROCEDURE


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    CHECK HARNESS AND CONNECTOR (STEERING PAD SWITCH SIGNAL)


    1. Disconnect the H97 radio receiver assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      H97-30 (SW1) - H97-32 (SWG) No switch pushed 95 to 105 kΩ
      Seek+ switch pushed Below 2.5 Ω
      Seek- switch pushed 313 to 345 Ω
      Volume+ switch pushed 950 to 1050 Ω
      Volume- switch pushed 2955 to 3265 Ω
      H97-31 (SW2) - H97-32 (SWG) No switch pushed 95 to 105 kΩ
      MODE switch pushed Below 2.5 Ω
      On hook switch pushed 313 to 345 Ω
      Off hook switch pushed 950 to 1050 Ω
      Voice switch pushed 2955 to 3265 Ω
      Result
      Proceed to
      OK
      NG

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    INSPECT STEERING PAD SWITCH ASSEMBLY


    1. Remove the steering pad switch assembly.

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    2. Inspect the steering pad switch assembly.

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      Result
      Proceed to
      OK
      NG

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    INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY


    1. Remove the spiral cable with sensor sub-assembly.

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    2. Inspect the spiral cable with sensor sub-assembly.

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      Result
      Proceed to
      OK
      NG

    • OK

      REPAIR OR REPLACE HARNESS OR CONNECTOR (RADIO RECEIVER ASSEMBLY - SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY, BODY GROUND)

    • NG

      REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLYClick here