Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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Here is the procedure to relearn the passcode. If this doesn't work a scan tool will be needed to diagnose the problem.
Attempt to start vehicle (engine must crank). Leave ignition on until THEFT SYSTEM indicator turns off (approximately 10 minutes). Turn ignition switch off. Attempt to start vehicle. If vehicle starts, password XXXXX XXXXX
do i only need to leave the ignition switch on for one 10 minute interval?
disconnecting the battery won't cause the pcm to reset?
I'll let you know how things go. thanks for the info...
need help on a 1999 Chevy K3500 pickup with a 7.4 L