Volvo Control Panel

[nigelhudson]

The "standard" engine control panel for my VP 2002 appears to be defective. The oil pressure and temperature alarms don't work. Initial diagnosis (pressing the test button) found that the alarm was defective so I replaced it. It now works with the test button but not when the oil pressure is low. I've eliminated any problems with the sensors by earthing the connections directly - still no alarm.

I've buzzed-out all the wiring on the engine, loom and behind the panel and the continuity is fine. So the problem appears to be isolated to the sealed unit that contains the electronics behind the warning lamps. I've asked Keyparts for a quote on this item but I don't suppose it's going to be cheap.

Has anyone else encountered this problem and did they solve it at reasonable cost?

 

[TiggerToo]

I don't have a solution, I am afraid. But I have a very similar problem. I am looking forward to some good ideas. A marine engineer who is looking into it told me that it is a common problem with Volvo instrument panels. maybe one should tell them...

 

[boatmike]

Absolutely correct. I have replaced both of my printed circuit boards with direct loom wiring as I don't believe PC boards are fit for purpose in this kind of environment. For the record I have also found Vetus ones as bad if not worse as the PC is not encapsulated and can corrode very easily. Big tinned copper wires mate. Thats what you need! If you have a Volvo handbook it should in fact show you the circuit. If not all makes are basically the same thing. You do need to be electrically competent to work it all out but its not really that difficult. Keep the basic light block just as a mounting for the bulbs and by-pass the wiring in the PC.