Main relay: Notes
The main relay is located in the relay holder under the dashboard near the steering wheel.
When the ignition switch is turned to "ON", current (+15 circuit) is supplied to control module pin 43. The control module then grounds pin 26 and the main relay operates. The control module also receives current on pin 1 from relay pin 87. The control module power supply is used internally to supply current to the throttle motor.
When the ignition switch is turned to "OFF", the main relay remains operated for a further 10 seconds to allow adaptation of the throttle valve's fully closed position.