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ECM relearn

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Old 11-24-2023, 04:06 PM
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Default ECM relearn
1995 Olds 98

INITIAL ISSUE: all gauges EXCEPT speedometer stopped working.

swapped ECM.

(don’t know if I pulled the “ECM FUSE”)

followed relearn instructions found on Google

dash gauges still not working
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Old 11-24-2023, 10:12 PM
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What makes you think the ECM is the problem?
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Old 11-25-2023, 01:53 AM
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Originally Posted by carfixer007
What makes you think the ECM is the problem?

A friend of mine that is a mechanic advised me to get it.
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Old 11-25-2023, 04:04 PM
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A real mechanic wouldn't recommend swapping out a $600 part on a whim.

Verify all grounds and connections are good. ie, friction test on your female connections at the cluster.
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Old 11-25-2023, 04:37 PM
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Originally Posted by Mike
A real mechanic wouldn't recommend swapping out a $600 part on a whim.

Verify all grounds and connections are good. ie, friction test on your female connections at the cluster.

yessir all that was done. The ECM is back installed and working properly. I returned the new one and reinstalled the original.
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Old 11-25-2023, 04:39 PM
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Originally Posted by carfixer007
What makes you think the ECM is the problem?

His reasoning behind it was because I said my gauges weren’t working…. I asked him what would cause that; what do I need to do to fix this issue.
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Old 11-25-2023, 11:55 PM
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Sounds like a bad connection to the gauge cluster or possibly that the logic board on the gauge cluster has gone bad. I'd start by removing the gauge cluster completely, then reinstalling. If it is a dirty/bad/etc. connection at the back of the gauge cluster, this might fix it.
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Old 11-25-2023, 11:56 PM
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Originally Posted by CathedralCub
Sounds like a bad connection to the gauge cluster or possibly that the logic board on the gauge cluster has gone bad. I'd start by removing the gauge cluster completely, then reinstalling. If it is a dirty/bad/etc. connection at the back of the gauge cluster, this might fix it.

thank you thank you I will try that.
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Old 11-26-2023, 09:53 AM
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Originally Posted by tlhopkinsjr
yessir all that was done. The ECM is back installed and working properly. I returned the new one and reinstalled the original.
So it'* fixed?
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Old 11-26-2023, 06:58 PM
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Originally Posted by carfixer007
So it'* fixed?
Well the gauge issue isn’t fixed but I did reinstall the original ECC
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