Reverse Park Sensing XK8

[ihouston]

Gents
my newly purchased XK8 has reverse park sensing but when engaged you just get a single tone for 5 seconds then nothing I believe the 5 second tone is an error tone. I am guseeing that the problem is going to be with the control unit in the boot well.
If this is the problem and dont know how you test it - my thoughts are can you wire an aftermarket reverse aid by using the feed to the reverse lamps and a power direct from the battery or is the Jaguars wiring too sensitive for this approach.
Let me know what you think
Cheers
Ian

[andyps]

My understanding is that it is probably one of the sensors which has failed, put it in reverse with the ignition on and they should be clicking, one that isn't is the failed one (think it is that way round!).

[ihouston]

Andy they make no noise at all - I cant get a single peep out of any of the sensors - makes me think it is the control box

[jimattfield]

I could never hear anything either - hearing not good enough at high frequencies

Probabilities :

90% - wiring to the back of one or more of the sensors (they get covered with road muck). Remove, clean with contact cleaner and re-connect.

50% - one failed sensor. Identify and replace.

20% - more than one failed sensor. Identify and replace.

10% - failed control unit. Very rare from what I have observed.

My 5-second warning tone on my '05 XK8 was cured by the first step detailed above.

HTH.

James

[John D9395]

Hi

Had the same problem when I owned an S Type.

The method of checking you have been offered is correct, and on mine I was able to identify the faulty sensor.

Just a thought, did you have the engine running, with a 'trusted' mate behind the when with his / her foot on the brake, with the car in reverse when you listened for the clicking noise?

Noise only there when reverse is selected and the reverse aid is activated.

[ihouston]

Gents thanks for that I will try cleaning the sensor connections first and go from there
Cheers
Ian