Description
Steering column stalk switches DELPHI COM2003 for Citroën C8 and Peugeot 807 from 2005. They control fog lights, trip computer, ESP, rear wiper, cruise control and car radio (stalk needs to be supplied or transferred).
This steering column stalk assembly is a direct-fit control unit commonly used on Citroën C8 and Peugeot 807 models built from 2005 onwards. Designed for professional workshops and DIY mechanics, the unit consolidates multiple vehicle controls into a compact stalk module: fog lights, instrument cluster/trip computer commands, ESP-related signals, rear wiper control, cruise control functions and, where applicable, radio steering commands (note that radio control may require an additional or transferred stalk). Fitted correctly, it restores centralised control ergonomics and electrical responsiveness to the steering column area.
Technical Information
- Manufacturer: Delphi
- Model: Citroën C8, Peugeot 807
- Product Codes: 96605603XT
- Other Numbers: 6242A8, COM2003
Compatibility And Application
Fits Citroën C8 and Peugeot 807 vehicles from 2005 onwards using the DELPHI COM2003 electrical architecture. Often searched by product numbers 96605603XT and 6242A8 — include these codes when looking up fitment or ordering to speed identification.
Installation Recommendation
- Disconnect the negative battery terminal and wait at least 10 minutes to reduce the risk of airbag deployment and allow capacitors to discharge.
- Remove the steering column trim covers to access the stalk assembly. In some vehicles partial steering wheel removal or airbag disconnection may be required—follow vehicle manufacturer safety procedures.
- Unplug electrical connectors and release any retaining clips or screws securing the stalk module.
- Transfer any required knob or radio-control stalk from the old unit if necessary, or fit the supplied stalk as indicated.
- Fit the replacement unit, reconnect connectors, reassemble the trim and reconnect the battery.
- Verify all functions (fog lights, trip computer inputs, ESP-related signals, rear wiper, cruise control and radio controls) before final reassembly. Reset or relearn procedures for certain systems may be required according to the vehicle service manual.
Most Common Failure Reasons
- Electrical Contact Wear: Repeated switching causes contacts to oxidize or wear, resulting in intermittent operation or total loss of specific functions.
- Mechanical Damage: Broken levers, cracked housings or internal plastic failure from aging, impact or excessive force.
- Moisture Ingress And Corrosion: Water entry or corrosion in connectors leads to poor conductivity and malfunctioning switches.
- Wiring And Connector Issues: Bent pins, loose connectors or damaged wiring in the steering column harness can mimic stalk failure.
- Component Fatigue: Long service life and high mileage increase the chance of internal switch or spring failure.
Symptoms to watch for include intermittent or non-working fog lamps, unresponsive trip computer controls, erratic rear wiper operation, inability to engage cruise control, or missing radio steering commands. Replacing the stalk assembly with a correctly coded and fitted unit usually resolves these symptoms.
For professional fitment, follow manufacturer torque and safety specifications. If you are a DIY mechanic, ensure you have basic experience with steering column work and adhere to airbag safety precautions. Using the correct product codes (96605603XT, 6242A8, COM2003) when ordering helps ensure you receive the compatible unit for Citroën C8 and Peugeot 807 models.
