Electrically Heated Front Seats

Electrically Heated Front Seat Components:

Electrically Heated Front Seat Diagrams:

Locations of components

22A Fuse holder
In the electrical distribution box, in the engine compartment, on the left-hand wheel housing

59 2-pole connector
One under each front seat

60 Single-pole connector
Under the centre console, near the ignition switch

64 Heating pad with thermostat
In the seat cushion and backrest of the driver's and co-driver's seats

98 10-pole connector
To the left of the steering column, behind the knee shield below the fascia

117 Earthing point
Between the ignition switch and the handbrake lever

121 Seat switch for the heating pad
Under the co-driver's seat, on the left-hand side

152B 29-pole red connector
In the engine compartment, in the electrical distribution box, on the left-hand wheel housing. The connector is accessible from the interior of the car.

Operation
Both front seats of the car are electrically heated.

The heating pads are supplied from fuse 12, via red 29-pole connector 152B. The heating pads are switched on and off by thermostats 64. These close the circuit at about +14°C (57°F) and open it at about +28°C (82°F).

The heating pad of the co-driver's seat is earthed via seat switch 121. When a load is applied to the seat, the seat switch will close and the heating pad can be switched on and off by thermostat 64. This heating pad will thus be operative only when a person is seated in the co-driver's seat.

Fault-tracing hints
The heating pads will be operative when the ignition switch is in the drive position.

1. Check fuse 12 and check that the supply to it is live.
2. Check thermostats 64 and check that the supply to them is live.
3. Check seat switch 121 under the co-driver's seat.
4. Check that there is no open circuit in the heating pad wiring.
5. Check the connectors, cable harnesses and earth connections.