Message: I installed a 160 t-stat about a week ago and last night the check engine light came on. Since I have a 97, I was told to do the on, off, on, off, on trick with the key. I got a code 12 on my odometer. My manual says 12 is : Battery Power to PCM Disconnected. What is that, or is it a generic message. Any info is appreciated.
97 Dak
5.2, 5 speed, 4x4, 3.55
P 1
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Subject: Check engine light / 160 t-stat