ECU Locations

CHARGING AND STARTING

86-1-14 DESCRIPTION AND OPERATION

ECU Locations
The following table shows locations for the various electronic control units used on the vehicle.

Electronic Control Unit

Location

Handed Yes/No

Engine Control Module (ECM)

In E-Box in engine compartment

No

Electronic Automatic Transmission (EAT) ECU

In E-Box in engine compartment

No

Transfer Box ECU

On bulkhead in engine compartment, behind 
vehicle battery

Yes

Air Suspension ECU

Behind passenger side of fascia

Yes

Anti-lock Brake System (ABS) ECU

Left hand side of engine compartment

No

Automatic Temperature Control (ATC) ECU

Part of heating control panel in centre of fascia

No

Steering Wheel Heating ECU

Located in steering wheel, next to the airbag

No

Body control Unit (BCU)

Under front passenger seat

Yes

Light Check Module (LCM)

Right hand 'A' post, behind trim panel

No

Immobilisation ECU

Next to transmission selector lever assembly on 
driver's side

Yes

Automatic Headlamp Levelling ECU

Base of left hand 'A' post

No

Restraint system Diagnostic Control Unit (DCU)

Under centre console, next to handbrake

No

Trailer Module

On rear fusebox in right hand side of luggage 
compartment

No

Tyre Pressure Monitoring ECU

Under front passenger seat, below BCU

Yes

Park Distance Control ECU

On rear fusebox in right hand side of luggage 
compartment

No

Fuel Burning Heater (FBH) ECU

On fuel burning heater unit in rear of front wheel 
arch on passenger side

Yes

Navigation Computer

On left hand side of luggage compartment

No

Seat Memory ECU

On outside panel of driver's seat with switch pack

Yes

Rain Sensor

On inside surface of windscreen, behind rear view 
mirror

No

Steering Angle Sensor

On lower section of upper steering column 
assembly

Yes

Rear Wiper Module

On rear wiper motor assembly

No

Voice Recognition ECU

On left hand side of luggage compartment, under 
navigation computer

No

Telephone ECU

On left hand side of luggage compartment

No

Instrument Pack

In fascia, on driver's side

Yes

Drivers Door Module

In top of driver's door, behind trim panel

Yes

Passenger Door Module

In top of passenger door, behind trim panel

Yes

Sunroof ECU

Behind headlining with motor, at forward edge of 
sunroof

Xenon Headlamp Control Module

Located on rear of each front Xenon headlamp unit

No