Starting System: Description and Operation

Current is supplied from battery 1 to Maxi fuse 2 and ignition switch 20 via Maxi fuse 3.

Current is also supplied direct to terminal 39 on starter motor 4.

When the ignition switch is turned to the Start position, starter relay 517 begins to operate, closing the circuit down to the starter motor solenoid, terminal 50.

When both terminals are live, the starter motor begins to rotate.

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

Anti-Theft Alarm
On cars with an anti-theft alarm, current is supplied from the ignition switch via the anti-theft alarm control module to prevent the car being started when the alarm is activated.