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 a 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 will not function.
WIRING DIAGRAM
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.
PROCEDURE
CHECK HARNESS AND CONNECTOR (STEERING PAD SWITCH SIGNAL)
Disconnect the F31 radio and display receiver assembly connector.
Measure the resistance according to the value(s) in the table below.
Standard Resistance | |||||||||||||||||||||||||
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Result | |||
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|
OK |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here |
NG |
INSPECT STEERING PAD SWITCH ASSEMBLY
Remove the steering pad switch assembly.
Inspect the steering pad switch assembly.
Result | |||
---|---|---|---|
|
NG |
REPLACE STEERING PAD SWITCH ASSEMBLY Click here |
OK |
INSPECT SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY
Remove the spiral cable with sensor sub-assembly.
Inspect the spiral cable with sensor sub-assembly.
Result | |||
---|---|---|---|
|
OK |
REPAIR OR REPLACE HARNESS OR CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY) |
NG |
REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY Click here |