Passive Restraint ECU Logic

Truth tables have been provided for information and to aid diagnostic work. The following notes are also relevant.

1. With ignition on (position 2) and reverse gear selected, the drivers door switch input is inhibited.

2. The ECU must be capable of detecting an inertia switch operation with ignition 'on' AND 'off'.

3. The ECU must be capable of discriminating between an inertia switch operation and 'ignition off'.

4. Where indicated thus '*' logic input can be either 'logic 1' or 'logic 0'; i.e. the output state described is not dependant upon that particular input.

- This combination of logic can only occur under fault conditions.

Seatbelt Warning Truth Table:

Run To Front Truth Table:

Run To Rear Truth Table:

Central Locking Truth Table: