01 jeep gc 4.0, gauges dead, won't start, key icon on, HELP!!!

jerryrot

Gauges now dead, starts then stalls every 2 seconds, over and over will not start, key icon on dash, check grounds, battery, wiring, PCM has corrosion on it and now when I try to scan says link error. Tried both grey keys and it does the same.
Thinking about changing the PCM, what do you think?
Please Help!!!!!!!

jerryrot

01 jeep gc want start

thecardoc3

You are potentially describing a loss of communication between onboard modules, while any one module could be responsible for that, just replacing one such as the PCM on a whim is more likely to be wrong than right.

If you have a volt meter with the key on measure from pin # 2 to a good ground and tell me how many volts you measure.

Do the same with pins 6, 7, 9 and 14.