Power is supplied to the radio and display receiver assembly and steering pad switch assembly* illumination when the light control switch is in the tail or head position.
*: w/ Steering Pad Switch Assembly
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.
Inspect the fuses for circuits related to this system before performing the following procedure.
Check if the illumination for the radio and display receiver assembly, steering pad switch assembly, heater control switch or others (hazard switch, transmission control switch, etc.) comes on when the light control switch is turned to the head or tail position.
| Result | Proceed to |
|---|---|
| Illumination comes on for all components except steering pad switch assembly. | A |
| Illumination comes on for all components except radio and display receiver assembly. | B |
| No illumination comes on (radio and display receiver assembly, hazard switch, heater control switch, etc.). | C |
A
B
C
Disconnect the I82 spiral cable sub-assembly connector.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I82-14 (IL+2) - Body ground | Light control switch in tail or head position | 11 to 14 V |
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Inspect the steering pad switch assembly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Inspect the spiral cable sub-assembly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Disconnect the I165 radio and display receiver assembly connector.
Measure the voltage according to the value(s) in the table below.
| Tester Connection | Condition | Specified Condition |
|---|---|---|
| I165-10 (ILL+) - Body ground | Light control switch in tail or head position | 11 to 14 V |
| Proceed to |
|---|
| OK |
| NG |
OK
NG