lost comp sat nav and audio

paulvasey said:

interesting thread but ive lost a lot more than dsp, ive got nothing on head unit, like it has no power at all, u would expect at least the logo when you open the door?

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If all the stuff in the rear stops working, why would you expect to have anything on the head unit?

A fuse somewhere I'm sure...

ive checked every fuse except fuseable links , im getting power to nav unit as the red light comes on

Datatek said:

That's what I said ages ago

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Yes a voice of experience, but the OP said he had checked and all was ok. I have been told that many times but on a through examination corrosion and a rotted/missing pin !!! I was just suggesting he have another look.

paulvasey said:

ive checked every fuse except fuseable links , im getting power to nav unit as the red light comes on

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But you have not checked the connections to the TV module or the DSP.

ive had the dsp out and its dry and looks good with no corrosion on pins, i havnt had tv module out, would this affect audio and nav?

paulvasey said:

ive had the dsp out and its dry and looks good with no corrosion on pins, i havnt had tv module out, would this affect audio and nav?

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You have had the DSP out? That's a devil of a job even the connectors are very difficult to get off. Yes the TV module, the easy one to get to, will affect audio and NAV. You have to remove it to get at the DSP.
All of these devices are I think connected to the CAN bus, someone will correct me if I'm wrong on that point.
What I can tell you for sure is that I had one with a pin corroded off on the TV module, it stopped the audio, the screen and the telephone.

owl said:

Yes a voice of experience, but the OP said he had checked and all was ok. I have been told that many times but on a through examination corrosion and a rotted/missing pin !!! I was just suggesting he have another look.

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i will recheck all pins tomorrow,i would actually be relieved to find one missing but did look remarkably good

paulvasey said:

i will recheck all pins tomorrow,i would actually be relieved to find one missing but did look remarkably good

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You need to check EVERY connector to every module.

you mean the nav unit, dsp and tuner? are there any more likely sources?

paulvasey said:

you mean the nav unit, dsp and tuner? are there any more likely sources?

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Depends on the spec, but every module connector needs to be checked on NAV, DSP, TV, radio aerial amps etc.

ok , will do

For the message centre - there is a Self Check test that can be done through the hidden menu system for 2003-2005 models....

Ignition key must be “off”.

• Press and hold the Check Control button in the instrument cluster (RIGHT button), and turn the ignition key to the first position (KLR).



• You will first see "Check Control OK", some seconds later you will see "Test Nr.01"
• Push the left button on the instrument cluster to see the car's identification number. Add the 5 digits (not 6) together and write down that number, you will need it for unlocking all the functions. Example: A123457 will lead to 2+3+4+5+7 = 21
• Push the right button until you see "Test Nr.19"
• Push left button until you see the number that is equal to the one you calculated above
• Push right button again

1. Display Car's identification number, HW/SW version, construction date
2. instrument cluster self test. Will light up all lights and run all guages
3. Current consumption (liters/hour)
4. Average consumption (liters/100 km)
5. Current range
6. Remaining fuel in tank. Three sets of numbers: A/B/C. C=total amount.
7. Engine RPM / Coolant Temp (C)
8. Current Speed (kph)
9. System voltage at Term. "R" (Battery Voltage)
10. Country/Language (UK, US, Spa, Ger, Jap, etc.)
11. Units am/pm
12. Average Speed
13. ETA
14. Date of Software Mask
15. Production Diagnosis
16. ""
17. Display Vehicle Specific Data
18. Alarm Changeover (cont. vs. intermittent OBC chime)
19. Lock/Unlock
20. Correction factor for fuel consumption (nicht ändern!)
21. Reset all defect codes

saint ive lost message centre as well

OK.. so just to recap..

Message Center - no power (I.E. illuminates but no display) ?
Sat Nav - no power (I.E. blank screen and computer in the back lights up then goes off) ?
Audio - no power (I.E. no display, no sound) ?
TV - nothing as it goes through the screens / audio)

correct ?

(side question - do you have head rest screen sin the back ?)

correct adam

oh and indicators flash but make no sound

question for datatek..

do you think it's possible the fuse box has taken a dump (as you diagnosed for me with my A/C issue)?

edit to add: no experience with the L322 just trying to correlate how things may transfer over from the last of the P38's to the L322!

L322 Fuse Box is pretty robust IMHO

Cheers saint.. from what i am understanding, there 'seems' to be a lack of power input to the accessories and there is nothing showing from fault code reading..