DESCRIPTION
Power is supplied to the radio and display receiver assembly and steering pad switch illumination when the light control switch is in the tail or head position.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
PROCEDURE
1. |
CHECK ILLUMINATION |
(a) Check if the illumination for the radio and display receiver assembly, steering pad switch assembly, glove box or others (hazard switch, transmission control switch, etc.) comes on when the light control switch is turned to the tail or head 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 |
Illumination comes on for all components except radio and display receiver assembly and steering pad switch assembly. |
C |
No illumination comes on (radio and display receiver assembly, steering pad switch assembly, hazard switch, glove box, etc.). |
D |
B | ![]() |
GO TO STEP 5 |
C | ![]() |
GO TO METER / GAUGE SYSTEM |
D | ![]() |
GO TO LIGHTING SYSTEM |
|
2. |
CHECK HARNESS AND CONNECTOR (BATTERY - SPIRAL CABLE SUB-ASSEMBLY) |
(a) Disconnect the F23 spiral cable sub-assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
F23-12 (IL+2) - Body ground |
Light control switch at tail or head |
11 to 14 V |
*a |
Front view of wire harness connector (to Spiral Cable Sub-assembly) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
3. |
INSPECT SPIRAL CABLE SUB-ASSEMBLY |
(a) Inspect the spiral cable sub-assembly (See page
).
NOTICE:
The spiral cable sub-assembly is an important part of the SRS airbag system. Incorrect removal or installation of the spiral cable sub-assembly may prevent the airbag from deploying. Refer to the pages shown in the brackets.
HINT:
NG | ![]() |
REPLACE SPIRAL CABLE SUB-ASSEMBLY |
|
4. |
INSPECT STEERING PAD SWITCH ASSEMBLY |
(a) Remove the steering pad switch assembly (See page
).
(b) Inspect the steering pad switch assembly (See page
).
HINT:
Only perform "Check the illumination".
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPLACE STEERING PAD SWITCH ASSEMBLY |
5. |
CHECK HARNESS AND CONNECTOR (BATTERY - RADIO AND DISPLAY RECEIVER) |
(a) Disconnect the G48 radio and display receiver assembly connector.
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
G48-10 (ILL+) - Body ground |
Light control switch at tail or head |
11 to 14 V |
*a |
Front view of wire harness connector (to Radio and Display Receiver Assembly) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
6. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER - COMBINATION METER ASSEMBLY) |
(a) Disconnect the G47 radio and display receiver assembly connector.
(b) Disconnect the F14 combination meter assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
G47-5 (ILL-) - F14-11 (ILL-) |
Always |
Below 1 Ω |
G47-5 (ILL-) - Body ground |
Always |
10 kΩ or higher |
OK | ![]() |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Switching the display
Items displayed can be switched by pressing the display change button.
Odometer
Displays the total distance the vehicle has been driven.
Trip meter
Displays the distance the vehicle has been driven since the meter was last
reset. Trip meters “A” ...
Headlight Relay Circuit
DESCRIPTION
The main body ECU receives headlight dimmer switch information signals, and illuminates
the low beam headlight.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses and bulbs for circuits related to this system before performin ...