DESCRIPTION
WIRING DIAGRAM
INSPECTION PROCEDURE
CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - SPIRAL CABLE)
INSPECT SPIRAL CABLE SUB-ASSEMBLY
INSPECT STEERING PAD SWITCH ASSEMBLY
AUDIO AND VISUAL SYSTEM (w/o Stereo Component Amplifier) - Steering Pad Switch Circuit
DESCRIPTION
This circuit sends an operation signal from the steering pad switch to the radio receiver.
If there is a short in the circuit, the resulting condition is the same as if the switch were continuously depressed.
WIRING DIAGRAM
INSPECTION PROCEDURE
- 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 Precaution for the SRS ().
| 1.CHECK HARNESS AND CONNECTOR (RADIO RECEIVER - SPIRAL CABLE) |
Disconnect the F19 receiver connector.
Disconnect the E12 cable connector.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| F19-8 (SW2) - E12-5 (AU2) | Always | Below 1 Ω |
| F19-6 (SWG) - E12-4 (EAU) | Always | Below 1 Ω |
| F19-7 (SW1) - E12-6 (AU1) | Always | Below 1 Ω |
| F19-8 (SW2) - Body ground | Always | 10 kΩ or higher |
| F19-6 (SWG) - Body ground | Always | 10 kΩ or higher |
| F19-7 (SW1) - Body ground | Always | 10 kΩ or higher |
| | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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| 2.INSPECT SPIRAL CABLE SUB-ASSEMBLY |
Text in Illustration| *a |
Steering Pad Switch Side | *b |
Vehicle Side |
Disconnect the cable connectors.
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Spiral Cable Position | Specified Condition |
| E12-4 (EAU) - z36-8 (EAU) | 2.5 rotations to the left | Below 3 Ω |
| Center |
| 2.5 rotations to the right |
| E12-5 (AU2) - z36-9 (AU2) | 2.5 rotations to the left | Below 3 Ω |
| Center |
| 2.5 rotations to the right |
| E12-6 (AU1) - z36-10 (AU1) | 2.5 rotations to the left | Below 3 Ω |
| Center |
| 2.5 rotations to the right |
- The spiral cable is an important part of the SRS airbag system. Incorrect removal or installation of the spiral cable may prevent the airbag from deploying. Be sure to read the Precaution for the SRS ().
| | REPLACE SPIRAL CABLE SUB-ASSEMBLY ()
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| 3.INSPECT STEERING PAD SWITCH ASSEMBLY |
Disconnect the z36 switch connector.
Text in Illustration| *1 |
Volume+ | *2 |
Volume- |
| *3 |
Seek+ | *4 |
Seek- |
| *5 |
MODE | - |
- |
Measure the resistance according to the value(s) in the table below.
- Standard Resistance:
| Tester Connection | Switch Condition | Specified Condition |
| 10 (AU1) - 8 (EAU) | No switch is pushed | 100 kΩ |
| Seek+ switch pushed | Below 2.5 Ω |
| Seek- switch pushed | 329 Ω |
| Volume+ switch pushed | 1000 Ω |
| Volume- switch pushed | 3110 Ω |
| 9 (AU2) - 8 (EAU) | No switch is pushed | 100 kΩ |
| MODE switch pushed | Below 2.5 Ω |
| | REPLACE STEERING PAD SWITCH ASSEMBLY ()
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| OK | |
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| PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE ()
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