Immobilisation (page 2 of 2)

The immobilisation ECU also controls the fuel cut-off solenoid (C198-1), which is connected (C863-4) by a black wire. The immobilisation ECU fails to provide the solenoid a feed if the vehicle has been immobilised.

In addition to the features directly controlled by the immobilisation ECU, a passive coil is fitted around the ignition barrel. This is a user friendly way of re-mobilising the engine. The passive coil (C663-1) receives a power supply from the alarm ECU (C057-7) on an orange/green wire.

The passive coil is only energised when the ignition switch is in position "II" and the engine is in an immobilised state. The coil creates a magnetic field that excites a coil in the RF handset. This causes the handset to transmit a code to the alarm ECU to mobilise the engine.

NOTE: For the passive coil to operate correctly, the ignition key and the RF handset must be on the same key ring.

NOTE: Passive immobilisation is not fitted in all markets. Check vehicle specification.