CHECK HEATED STEERING WHEEL SWITCH INDICATOR LAMP
Ignition switch ON.
Turn heated steering wheel switch ON. Observe indicator.
Turn heated steering wheel switch OFF. Observe indicator.
Does heated steering wheel switch indicator lamp turn ON and then OFF?
YES>>Inspection End.
NO>>Refer to Diagnosis Procedure.
CHECK POWER CIRCUIT
Ignition switch OFF.
Remove the heated steering wheel switch. Refer to Removal and Installation.
Ignition switch ON.
Check voltage between heated steering wheel switch harness connector terminals.
| Heated steering wheel switch |
Voltage (Approx.) | ||
|---|---|---|---|
| Connector | Terminals | ||
| + | - | ||
| M48 | 6 | 8 | Battery voltage |
Is the inspection result normal?
YES>>GO TO 2.
NO>>GO TO 3.
CHECK GROUND CIRCUIT
Ignition switch OFF.
Disconnect heated steering wheel switch connector.
Check continuity between heated steering wheel switch harness connector terminal and ground.
| Heated steering wheel switch | — | Continuity | |
|---|---|---|---|
| Connector | Terminal | ||
| M48 | 3 | Ground | Yes |
Is the inspection result normal?
YES>>GO TO 3.
NO>>Repair harness or connector.
CHECK HARNESS BETWEEN HEATED STEERING WHEEL RELAY AND HEATED STEERING WHEEL SWITCH
Disconnect heated steering wheel relay connector.
Check continuity between heated steering wheel relay harness connector terminal and heated steering wheel switch harness connector terminal.
| Heated steering wheel relay | Heated steering wheel switch | Continuity | ||
|---|---|---|---|---|
| Connector | Terminal | Connector | Terminal | |
| M90 | 5 | M48 | 5 | Yes |
Check continuity between heated steering wheel relay harness connector terminal and ground.
| Heated steering relay | — | Continuity | |
|---|---|---|---|
| Connector | Terminal | ||
| M90 | 5 | Ground | No |
Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair harness or connector.
CHECK HEATED STEERING WHEEL RELAY
Check heated steering wheel relay. Refer to Component Inspection (Heated Steering Wheel Relay).
Is the inspection result normal?
YES>>GO TO 5.
NO>>Replace heated steering wheel relay.
CHECK BATTERY POWER
Check the following:
Battery
Harness for open or short between battery and 10A fuse (No. 6)
10A fuse (No. 6)
Harness for open or short between 10A fuse (No. 6) and heated steering wheel relay
Is the inspection result normal?
YES>>GO TO 6.
NO>>Repair harness or connector.
CHECK HARNESS BETWEEN A/C AUTO AMP. AND HEATED STEERING WHEEL SWITCH
Disconnect A/C auto amp. connector.
Check continuity between A/C auto amp. harness connector terminal and heated steering wheel switch harness connector terminal.
| A/C auto amp. | Heated steering wheel switch | Continuity | ||
|---|---|---|---|---|
| Connector | Terminal | Connector | Terminal | |
| M50 | 8 | M48 | 6 | Yes |
Check continuity between A/C auto amp. harness connector terminal and ground.
| A/C auto amp. | — | Continuity | |
|---|---|---|---|
| Connector | Terminal | ||
| M50 | 8 | Ground | No |
Is the inspection result normal?
YES>>GO TO 7.
NO>>Repair harness or connector.
CHECK HEATED STEERING WHEEL SWITCH
Check heated steering wheel switch. Refer to Component Inspection (Heated Steering Wheel Switch).
Is the inspection result normal?
YES>>Replace A/C auto amp. Refer to Removal and Installation.
NO>>Replace heated steering wheel switch. Refer to Removal and Installation.
Heated Steering Wheel SystemYour vehicle seats can be adjusted manually. For additional information about adjusting the seats, refer to the steps outlined in this section.
Forward and backward
