Cluster codes for 2002 Dodge ram 1500

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spuz

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Sep 6, 2016
Posts
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Ram Year
2002
Engine
4.7 l v8
I did the cluster test and got the following codes:

27 55
29 55
Ab 06
AC 23
00 00

27 is dome light output open or shorted
29 is cargo light output open or shorted

Both lights work. I don't want to turn key 100 times to reset.ie 45 more times.
Have not touched these lights.

I do have a 1 amp draw on battery with everything off through fuse 51
 
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spuz

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Ram Year
2002
Engine
4.7 l v8
I cleared 27 and 29 and they did not reoccur but amp reading is almost exactly 1.0 at fuse 51 . Reading is very stable. Not sure if bad battery could cause this. Left truck off for several hours and still get amps at fuse 51.
The computer seems to think car not shut off.
 
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spuz

Member
Joined
Sep 6, 2016
Posts
62
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Ram Year
2002
Engine
4.7 l v8
Solved: you have to hook up multimeter continuously for at least a minute for 1 amp to disappear. Real reading is 5 milliamps. Test light just stays on and blinks with a red light in cluster.

Tons of people replace their cluster when they see the 1 amp. Very few mentions of how the test must be conducted.
 
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