The gauges on the jeep don't work i have changed the insterment cluster and neither work. I have been told it is the BCM but don't know where it is.
SOURCE: 84 jeep 2.8 ign control module and crank position sensor
module is under dist. rotor inside cap
SOURCE: NEED TO CHANGE BODY MODULE IN 1999 JEEP CHEROKEE.
The Cherokee doesn't have a body control module however the Grand Cherokee does. It is behind the kneeblocker trim panel under the steering column directly in front of the drivers left knee.
SOURCE: 97 grand cherokee, instrument cluster not working,
Look for a good connection between the battery neg, and the engine block.
SOURCE: Instrument cluster on 1997 Jeep Wrangler...gauges
faulty cluster may have to replace it. try testing a junked unit if it works keep it.
SOURCE: 2000 jeep grand cherokee gauge cluster is working
If it's just the Temp/ Fuel gauge,,, my money is on the instrument voltage regulator. (it governs the voltage to these gauges regardless of the incline (up/down for the fuel gauge) or the battery voltage 12.5 - 13.8 . Other than these it may be an earth connection problen (long shot) because the instrument panel relies on many many signal imputs. !
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