Diagnostic Help Required

[dirky]

On starting the car (C5 2.00 VTR) and putting into reverse gear, I get a message on screen that reads,

Driver Parking Assitance Faulty,

have taken to local garage and he's put his computer on

but it does not give a code, it only says there is a fault.

 

Any help would be very much appreciated

[techbod]

parking assistant that's the reverse parking sensors ( has it been bumped? ) check rear bumper for damage that's where the sensors are

[dirky]

I haven't bumped the car myself and there are no visual bumps, bumper in perfect condition, so I wouldn't say it has had one.

[mlkey]

I haven't bumped the car myself and there are no visual bumps, bumper in perfect condition, so I wouldn't say it has had one.

 

Are the sensors in the bumper free from ice on the bumper face? This can cause the system to think there is a fault.

[dirky]

Checked that, all clear - in fact I went around them with very warm water (not boiling) and cleaned them to be sure :rolleyes:

[coastline taxis]

Checked that, all clear - in fact I went around them with very warm water (not boiling) and cleaned them to be sure :rolleyes:

check your reversing lights for blown bulbs and bad earting

[techbod]

road conditions are bad so how do you know someone didn't reverse into your car disabling your toys ( my lexus did this you know that silly bugger advertisement where it parks its self ) well it didn't

[dirky]

Well I don't know for definate that someone has bumped the car, but there are no obvious tell tale signs

[techbod]

one knock that's all it takes ( your trying to park they are parking ) your not in your car so fit cctv I have :rolleyes:

[dirky]

So, if that has happened, what do I do next about the problem? :unsure:

[Randombloke]

So, if that has happened, what do I do next about the problem? :unsure:

 

Check the sensor wiring plugs. The Haynes manual says to remove the bumper but I would look very carefully and see if you can spot anything and if it's worth unplugging the connectors, cleaning them and reconnecting.

 

I've not looked under my bumper yet but could be persuaded.........

[dirky]

Would it be at all beneficial to disconnect the negative lead on the battery to see if it will re-set the system?

[techbod]

it does but you must turn all auxiliary systems to deplete the mems (keep live mems CAM ) complicated buggers but easily opened by experience :unsure:

[dirky]

Say again in plain English please (basically, run through the process) :unsure: :D

[dirky]

Drove the car home from work last night and tonight, guess what? system seems to be working now - but for how long?

 

So if it is now working, then I would have thought it would not be a broken sensor or wire.

 

Or am I wrong? :huh: :unsure:

 

Please get back to me with ideas

[techbod]

if you have a fault logged and no code reader then you could clear it by disconnecting the battery negative wire only and switching on all thing like heated rear window/lights/fogs which will drain any left over power in the MEMS system or CAM ( keep alive memory ) then you can do a few drive cycles to allow the ECU to relearn but if the fault returns then you need to have the fault codes extracted with a diagnostic tool ( dont forget the radio code :unsure: ),