Heated Steering Wheel System Does Not Operate: Notes
HEATED STEERING WHEEL SYSTEM DOES NOT OPERATE [HEATED STEERING WHEEL] DESCRIPTION AND POSSIBLE CAUSE
| Troubleshooting item |
Heated steering wheel system does not operate |
| Description |
Heated steering wheel does not warm steering wheel even though heated steering wheel switch is on |
| Possible causes |
The power supply is not supplied to filament of heated steering wheel
- Open circuit in heated steering wheel control unit power supply circuit
- Open circuit in clock spring power supply circuit
- IG1 relay No. 2 malfunction
- Clock spring malfunction
Heated steering wheel control unit not operation
- Open circuit in heated steering wheel control unit ground circuit
- Open circuit in clock spring ground circuit
- Clock spring malfunction
Heated steering wheel unit cannot control filament on
- Heated steering wheel unit malfunction
Heated steering wheel filament does not generate heat
- Heated steering wheel unit malfunction
Heated steering wheel control unit cannot receive operation signal
- Open circuit in heated steering wheel control unit control circuit
- Short to ground in heated steering wheel control unit control circuit
- Short to power supply in heated steering wheel control unit control circuit
- Open circuit in clock spring control circuit
- Short to ground in clock spring control circuit
- Short to power supply in clock spring control circuit
- Heated steering wheel control unit malfunction
- Clock spring malfunction
- Dash-electrical supply unit malfunction
- CAN communication line malfunction
- Steering warmer switch malfunction:
- Climate control unit malfunction
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 Courtesy of MAZDA MOTORS CORP.
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