frustrated
New Member
- Joined
- Mar 22, 2006
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- Members Ride
- VT Station Wagon
My VT is developing an increasingly severe set of intermittent computer problems.
E.g., when driving along, the Engine light, ABS light, Trac light, airbag light, and oil indicator will come on. A series of musical beeps sounds. Sometimes the temperature needle goes to zero. The signals will usually reset themselves after a few minutes. If I start the car and use the hidden trip-meter functions, I see that the fuel rate goes to 0.0 and the engine temperature to -40C when the problem occurs.
The car can also be hard to start.
I'm seeing diagnostic codes 12, 31, 48, and 92, which decode to
12 Engine Speed Detection No RPM Input
(Normal when Engine is Not Running)
31 Theft Deterrent System: No Signal
(Anti-theft communication between PCM and BCM)
48 Camshaft Position Sensor No Signal (Received by PCM)
Sensor Fault, Wiring or Connector
92 Low Speed Fan No Response from BCM
BCM Module, Wiring or Connector
It is sounding like some sort of intermittent connector/wiring problem between the PCM (is that the computer near the passenger's left foot?) and the BCM (the Body Control Module above the driver's right foot). I've wiggled every connector that I can get my hands to, including all the ones on the PCM, with no improvement.
Any help greatly appreciated.
I bought the CD manual for the car (it cost me about $250) but I've misplaced the darn CD!
Thanks,
Michael (alias "frustrated")
E.g., when driving along, the Engine light, ABS light, Trac light, airbag light, and oil indicator will come on. A series of musical beeps sounds. Sometimes the temperature needle goes to zero. The signals will usually reset themselves after a few minutes. If I start the car and use the hidden trip-meter functions, I see that the fuel rate goes to 0.0 and the engine temperature to -40C when the problem occurs.
The car can also be hard to start.
I'm seeing diagnostic codes 12, 31, 48, and 92, which decode to
12 Engine Speed Detection No RPM Input
(Normal when Engine is Not Running)
31 Theft Deterrent System: No Signal
(Anti-theft communication between PCM and BCM)
48 Camshaft Position Sensor No Signal (Received by PCM)
Sensor Fault, Wiring or Connector
92 Low Speed Fan No Response from BCM
BCM Module, Wiring or Connector
It is sounding like some sort of intermittent connector/wiring problem between the PCM (is that the computer near the passenger's left foot?) and the BCM (the Body Control Module above the driver's right foot). I've wiggled every connector that I can get my hands to, including all the ones on the PCM, with no improvement.
Any help greatly appreciated.
I bought the CD manual for the car (it cost me about $250) but I've misplaced the darn CD!
Thanks,
Michael (alias "frustrated")