Quote:
Originally Posted by hamsandwiches
Thank you Durk.
Trying to decide what the diagrams tell me given my symptoms.
Think it could be something on p 229 because that contains all the affected gauges.
Water temp gauge is on next page and is not affected when my problem happens.
That said, what should I look for??
Not used to electrical diagrams (teenager)
Thanks again
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228 and 229 are where all your problems are happening, all are connected to that inner box inside the gauge cluster that probably represents the logic board attached to the back of the cluster:
The connectors C27 (E) and C28 (D) in the diagrams are the white and blue ones on the "MAIN PCB1" above. Since you changed gauge clusters and the problem persists, it likely isn't the cluster itself, but how it is interacting with the rest of the truck.
The connection now that concerns me is the G-W wire on page 228 that is "From Body ECU" - there is no description of how/what that wire does - but if it is some sort of communication, that may be the problem.
-Charlie
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