Self Test Outputs Sequence (Control units)

Outputs are tested in sequence using the CDL lock switch to progress through the outputs. A CDL unlock request repeats the last test. Outputs are either operated continuously until the CDL lock switch is released, or operated with a pulse.

Self Test Outputs Sequence

Self test mode is cancelled when the ignition is turned off, if oil pressure is sensed (i.e. engine running) or if the vehicle speed exceeds 0.6 mph (1 km/h).

Radio Frequency (RF) Receiver

The RF receiver is part of the security system and relays data from the remote transmitter (plip) to the CCU. The RF receiver is located on top of the instrument pack, between the housing and the face plate. SECURITY, DESCRIPTION AND OPERATION, Description.

Immobilisation ECU

The immobilisation ECU controls operation of the starter motor to provide the engine immobilisation function of the security system. The immobilisation ECU is secured to the rear of the fascia near the vehicle centre-line. SECURITY, DESCRIPTION AND OPERATION, Description.

Supplementary Restraint System (SRS) Diagnostic Control Unit (DCU)

The SRS DCU controls the operation of the vehicle's airbags and seat belt pretensioners. The SRS DCU is attached to the transmission tunnel below the heater assembly. RESTRAINT SYSTEMS, DESCRIPTION AND OPERATION, Description.

Electronic Automatic Transmission (EAT) ECU (Automatic Gearbox Models Only)

On automatic gearbox models, the EAT ECU controls gear changing and torque converter lockup. The EAT ECU is installed in the Environmental (E) box in the engine compartment. AUTOMATIC GEARBOX - JATCO, DESCRIPTION AND OPERATION, Description.