2004 GMC Envoy Q&A

2004 GMC Envoy Question: battery change

Changed the battery now the cluster has gone crazy. Speed-O is inop and fuel guage is erratic. Also A/C is inop, no control from Hvac control head. -
Answer 1
bcm is confused. remove a battery cable again wait 10 seconds and install. check and see if it all came back. Roy -
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