DESCRIPTION
Power is supplied to the navigation receiver assembly and steering pad switch illumination when the light control switch is in the TAIL or HEAD position.
WIRING DIAGRAM
INSPECTION PROCEDURE
Note
The vehicle is equipped with an SRS (Supplemental Restraint System). Before servicing (including removal or installation of parts), be sure to read the precautionary notice for the Supplemental Restraint System Click here.
PROCEDURE
CHECK ILLUMINATION
Check if the illumination for the navigation receiver assembly, steering pad switch, glove box or others (hazard switch, transmission control switch, etc.) comes on when the light control switch is turned to the HEAD or TAIL position.
| Result | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
| B |
|
CHECK HARNESS AND CONNECTOR (BATTERY - NAVIGATION RECEIVER ASSEMBLY) Click here |
| C |
|
GO TO LIGHTING SYSTEM Click here |
| D |
|
GO TO METER / GAUGE SYSTEM Click here |
| A |
|
CHECK HARNESS AND CONNECTOR (BATTERY - SPIRAL CABLE)
Disconnect spiral cable connector D53.
Measure the voltage according to the value(s) in the table below.
| Standard voltage | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT SPIRAL CABLE
Disconnect the steering pad switch and spiral cable connectors.
Measure the resistance according to the value(s) in the table below.
| Standard resistance | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Note
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. Refer to the pages shown in the brackets.
| NG |
|
REPLACE SPIRAL CABLE Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (SPIRAL CABLE - NAVIGATION RECEIVER ASSEMBLY)
Disconnect navigation receiver assembly connector E2 and spiral cable connector D53.
Measure the resistance according to the value(s) in the table below.
| Standard resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT STEERING PAD SWITCH ASSEMBLY
Disconnect the steering pad switch assembly connector.
Connect the positive (+) lead to terminal IL+2 and the negative (-) lead to terminal EAU of the steering pad switch connector.
Check if the illumination for the steering pad switch comes on.
| OK |
|---|
| Illumination for the steering pad switch assembly comes on. |
| NG |
|
REPLACE STEERING PAD SWITCH ASSEMBLY Click here |
| OK |
|
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here
CHECK HARNESS AND CONNECTOR (BATTERY - NAVIGATION RECEIVER ASSEMBLY)
Disconnect navigation receiver assembly connector E6.
Measure the voltage according to the value(s) in the table below.
| Standard voltage | ||||||
|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - COMBINATION METER)
Disconnect navigation receiver assembly connector E7.
Disconnect combination meter connector E1.
Measure the resistance according to the value(s) in the table below.
| Standard resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE Click here