C5 Electronics

[peterhw]

I purchased a C5 Exclusive, diesel, auto, estate a few months ago and immediately got a warning about the Airbag on the display at startup and at any other time that caused the diagnostic check - i.e. get out of the car.

 

Then I started to get Deflating Tyres, then STOP Puncture.  No puncture but I think the garage changed a valve.

 

The garage tried all sorts and today had a new Comms200 (hope that's correct) unit fitted which appears to have fixed the airbag warning light but no get ESP / ASR warning message on the display and permanent bulb illuminated on dashboard.  I never had this problem before.  I have driven home about 25-30 miles and still no change.

 

Any ideas?

 

[paul.h]

Welcome to the forum.

 

What year is the car and the engine size ?

 

Has the tyre pressure warning now been fixed by the valve change since it is not clear from your post ?

 

The permanent bulb lit on the dash, is that the triangular one for the ESP/ASR (electronic stability program / anti slip regulation) ?

 

Are you using a Citroen dealer for the work with Lexia diagnostic equipment or is it an independant garage trying part replacements in the hope of getting the fix right ?

 

Was the new Comms 2000 unit programmed to your car - it would have needed the steering sensor to be set up using a Lexia - this is an input to the ESP/ASR so could be the cause of the latest problem.

[peterhw]

Thanks for your reply.

 

Welcome to the forum. --------------Thanks v much

 

What year is the car and the engine size ? April 2002 / 2179cc

 

Has the tyre pressure warning now been fixed by the valve change since it is not clear from your post ? ------ DONE

 

The permanent bulb lit on the dash, is that the triangular one for the ESP/ASR (electronic stability program / anti slip regulation) ?  ------- YES

 

 

 

I am not using a Citroen main dealer.  

I don't know the name of the equipment being used - but certainly has some sophisticated equipment. (Will ask the question).

[paul.h]

This is an excerpt from the procedures for refitting the Comms 2000 unit -

 

ESSENTIAL : After adjusting, do not turn the rotary switch.

Turn the rotary switch ( 2) as far as possible clockwise.

Never exert force on the rotary switch.

Turn the rotary switch 2,5 turns anti-clockwise.

CAUTION : Orient the driver’s airbag and horn harnesses ( 3) upwards.

The point of the triangle on the rotary switch should be positioned opposite the linkage  for switch supplier "EATON ; DELPHI".

 

3. Refitting

ESSENTIAL : Replace any faulty parts.

Check that the road wheels are aligned straight ahead.

Check the condition of the 2 clips for locking the switching module under the steering wheel.

Connect the connectors on the switching module under the steering wheel.

Check the locking of the connectors of the switching module under the steering wheel.

Engage the switching module under the steering wheel on the steering column.

Check the locking of the switching module under the steering wheel.

Tighten the bolt (1) to 20 ± 5 N.m.

Remove the guarantee label that is affixed to the rotary switch (supplier "DAV ; SYLEA ; VALEO").

Refit :

• The steering wheel (see the relevant operation)
• The driver’s air bag (see the relevant operation)
• The steering column cowling

Reconnect the battery.

Check the functioning of the switching module under the steering wheel.

 

4. Vehicles equipped with ESP (Electronic Stability Programme)

Calibrate the steering wheel angle sensor (LEXIA or PROXIA).

To perform this operation, select the menu "ABS (ABS/ESP)".

[peterhw]

Many thanks again.