Description Of Operation, Control Module Power Supply

+30:
The main relay and the fuel pump relay are supplied. with power (+30 circuit) via MAXI-fuse 2. The control module is supplied with power on pin 26 via fuse 28.

The control module uses the current from the +30 circuit for its memory.

The engine will not start unless power is supplied via the +30 circuit.

+15:
Current (+15 circuit) is supplied from fuse 17 via the anti-theft alarm's control module to pin 56 of the Motronic control module.

When current (+15 circuit) is applied to pin 56 the control module is activated.

The engine will not start unless power is supplied via the +15 circuit.

NOTE: When the Ignition switch is turned to the OFF position the main relay remains operated for a further five seconds or so if the coolant temperature is above -40°C (25°F). At lower temperatures the main relay remains operated for about 30 seconds.