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Old Oct 15th, 2022, 23:15   #2
Clan
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Join Date: Jun 2007
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Quote:
Originally Posted by IainG View Post
Hi All
I have read many posts on here about this code and have a plan.
I was driving along and lost all power, OK to get home though. Plugged in VIDA DICE and had loads of codes, The new one was accelerator pedal CEM-3F93 and ECM 0222. both accelerator signal low. There were also loads of communication errors as well.
I removed the accelerator pedal unit, cleaned the plug with contact cleaner and reassembled. Reset the codes , tried the car and all is well again. All the power is back. However I still have the following codes
CCM 0040 AQ sensor. so happy to leave
ECM 0380 Glow plug Faulty, been there for at least 12 years so happy to leave
ECM 0222 Accelerator pedal sensor signal too low. This is a new one and although the car runs OK again I imagine there is an underlying problem there.

My plan is to replace the housing and pin connectors on the Accelerator plug and also replace the white wire between the Accelerator and CEM (Accelerator analogue signal)
I did check the accelerator signal output in VIDA and had 0.42 volts at idle and the max at full throttle was 3.13 V. VIDA doesn't seem to give the expected values, only it should be between 0.15 Volts and 4.85 Volts, which it is.
Also (because of all the communication error codes) whilst I am soldering the new wires on I thought I would also change the Data wire pins on the 3 plugs on the CEM as this can be a common problem.
Does this seem like a reasonable way forward??
Any thoughts appreciated.
I plan on buying the following
Housing 8690598
Repair terminals 30765498 x 6 for accelerator plug
Repair terminals 30656678 x 7 (one for the white wire and 6 for the data pins)
Yes, in all the years I was fixing this problem it was NEVER the pedal . you are going the right way, get the repair terminals from volvo they come with 6 inches of wire already crimped. The white wire goes up under the dash and could be trapped somewhere between dash and body so right, to run a new wire over to the CEM.
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