Electrical Diagrams

Starting System Diagrams:

Starting System Components:

Locations of components

1 Battery
On the left-hand side of the engine compartment

4 Starter motor
At the rear of the engine, below the intake manifold

7 Earthing point
On the left-hand wheel housing

20 Ignition switch
On the right-hand side of the steering Column

59 Two-pole connector
In the engine compartment, at the windscreen wiper motor

67 Six-pole connector
In the engine compartment, at the windscreen wiper motor

73 Timing service instrument (TSI) socket
In the engine compartment on the left-hand side, at the bulkhead

75 Distribution block
Forward of the battery

77 Starting interlock contacts, automatic transmission
In selector position switch 239, at the selector lever

156 Time-delay relay for the AC and ACC radiator fan
In the electrical distribution box, behind the glove compartment

211 Earthing point
On the gearbox

Operation
The +50 supply to ignition switch 20 is taken from battery 1 and a supply cable is also run directly from the battery to terminal 30 of starter motor 4.

When the ignition switch is turned to the start position, the solenoid coil will be energized. The coil will close the starting contacts, so that current will flow from the battery through the starter motor, and the motor will start to rotate.

+50 is also supplied to TSI socket 73 and AC and ACC radiator fan relay 156.

Automatic transmission
Cars with automatic transmission are equipped with starting interlock contacts 77, which prevent the engine from being started when the selector lever is in 1, 2, 3, D or R.

Fault-tracing hints
1. Check the battery voltage at terminal 30 of starter motor 4.
2. Check the energizing voltage to the starter motor solenoid, with the ignition switch in the start position.
3. Check the terminal blocks and wiring.
4. Check that the motor is earthed to the chassis of the car.