Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Central Control Unit (CCU): Notes
The CCU is plugged into the back of the passenger compartment fusebox below the fascia. Two connectors provide the interface between the CCU and the passenger compartment fusebox and three connectors provide the interface between the main harness and the CCU. The CCU is responsible for controlling the following functions:
- Transit Mode
- Anti Theft Alarm
- Windscreen Wipers
- Courtesy Lamp Delay
- Door Open Warning Lamp
- Key In Alarm
- Rear Fog Guard Lamps
- Lights On Alarm
- Seat Belt Warning
- Handbrake Warning
- Rear Screen Wiper
- Tail Door Window
- Heated Rear Window
- Heated Windscreen
- Tail Door Latch
- Window Lift
- Seat Heating
- Daytime Running Lamps
Some of the features controlled by the CCU are market selectable and may not be operative or available in specific markets. TestBook can be used to configure the CCU to enable/disable market selectable features, tailor anti theft alarm features to customer requirements and can also interrogate the CCU for stored fault codes and alarm triggers. TestBook is connected to the CCU via the diagnostic socket which is located in the passenger footwell.
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.