Originally Posted by
pizzaguy
What condition are the battery terminals and battery ground lug in? How old is the battery? Does the yellow traction light in the speedo ever come on?
I might also add that the common denominator here is less the ecm/ptcm and more the bcm. The most common reason for the bcm to act up is "dirty" or noisy power, this is often caused by an old battery or cruddy terminals/ground lug
The battery is good, 2 years old. Terminals look good but will check ground earths etc.
No the traction light never comes on, only the spoiler light constant flashing.
I will try a new battery, but volts are good. Where is the bcm ? Replaceable or serviceable?
Thanks for your help. Will try the earths, terminals and report back.