Description
Multifunction COM2005 DELPHI control unit for Citroën and Peugeot vehicles. Controls headlights, fog lights, car radio, cruise control (radio stalk must be supplied or transferred), front and rear wipers, and horn.
Key Features
The COM2005 Delphi multifunction switch block manages multiple body functions from behind the steering wheel. It centralises control of lighting circuits, fog lamps, radio command, cruise control inputs, windshield wipers (front and rear) and the horn. Designed for easy integration in PSA group vehicles, it improves harness simplicity by grouping several switch functions into one module.
Technical Information
- Manufacturer: Delphi
- Model: COM2005
- Product Codes: 96660124XT, 96640423XT, 98069813XT
- Other Numbers: 6242VW, 6242GF, 6242X3, 98069813, COM2005
Compatibility
Commonly fitted to various Citroën and Peugeot models from the PSA/Stellantis range. Typical applications include:
- Citroën C2
- Citroën C3 (I and II)
- Citroën DS3
- Citroën Berlingo B9
- Peugeot Partner Tepee / Partner II
Installation And Replacement
Replacement of the COM2005 switch block is a medium-difficulty job suitable for experienced DIYers and professional mechanics. Typical steps:
- Disconnect the negative terminal of the battery before any work.
- Remove the steering column covers to access the multifunction switch block.
- If required, transfer the radio/cruise stalk or associated control switches from the old unit to the replacement unit.
- Unplug all connectors carefully, noting locking tabs and harness routing to avoid damage.
- Fit the new unit, reconnect connectors and secure mounting screws to the correct torque.
- Perform necessary coding or commissioning (see Coding section below).
Installation and Coding – Important
- The unit is used and is “paired” with the original vehicle (VIN/PIN/keys).
- Options for commissioning:
- Cloning data from the old unit (EEPROM/Flash) – after cloning the unit is plug and play.
- Virginization and subsequent initialization/telecoding via DiagBox (or online) + key adaptation.
- Recommended to be carried out by a technician with PSA service equipment (DiagBox/Lexia/PP2000).
- Before removal/installation always disconnect the battery and follow the manufacturer’s procedure to avoid damaging the unit.
Common Failure Causes
Failures typically result from electrical faults or environmental damage rather than mechanical wear of the plastic housing. The most common causes are:
- Corroded or damaged connector pins from moisture ingress.
- Water penetration due to door seals or windscreen leaks affecting the switch block.
- Short circuits or voltage spikes in the vehicle electrical system.
- Faulty internal solder joints or degraded components after long service life.
- Wear of mechanical contacts in stalk switches leading to intermittent operation.
How Often It Fails
There is no fixed service interval. Lifespan depends on vehicle usage, environment and exposure to moisture or electrical problems. In practice, failures are more likely on high-mileage vehicles or those exposed to leaks, humid garages or improper jump-starting procedures.
Recommendations For Mounting
- Always disconnect the battery before starting work and wait several minutes for systems to power down.
- Inspect and, if necessary, clean the wiring harness connectors before reinstallation. Replace any corroded connectors.
- If moving the stalk/switch from the original unit, ensure correct orientation and secure mounting to avoid play.
- After installation, verify all functions (lights, wipers, horn, cruise control, radio controls) and perform any required coding or cloning with appropriate diagnostic tools.
Who Should Use This Part
Suitable for professional automechanics and experienced DIY enthusiasts performing repairs on Citroën and Peugeot vehicles. Often searched by part number during parts lookup—keeping the OEM codes handy speeds identification and procurement.
