'94 Fleetwood On-Board Diagnostics

[fellenzer]

Anyone know if the on-board diagnostic system will display things like coolant and transmission temperatures? Thanks.

[TJ Hopland]

I don't think so.  94 may not have had an electronic transmission so may not be any sensors in it.

[Dave Shepherd]

Engine temp should be available,  not trans temp.

[fellenzer]

I have the '94 service manual and can find all the stuff about checking codes and diagnosis but I can't find any of the information about running diagnostics while driving the car like some of the other models have. Any clue where to find it?

[TMoore - NTCLC]

Yes, both engine coolant temperature and tach rpm (first two digits only) are available via the Climate Control diagnostics:

00 - ECM faults
01 - CCM faults
02 - ACAC faults
03 - SIR faults
04 - ABS/TC faults
05 - program #
06 - engine RPM
12 - vehicle speed
16 - sun load sensor
17 - current temp valve position
19 - temp valve position (hot)
20 - temp valve position (cold)
24 - engine coolant temp
22 - commanded temperature valve position
25 - in vehicle sensor
28 - ambient sensor
30 - ignition cycles

[fellenzer]

Thanks. I'll be anxious to check that out when I get the car back (just loaned it to a friend who's own car is in the shop).

[fellenzer]

I'm looking in this dang book and I cannot find that list. LOL.

Is trans temp there anywhere?