Pcm bad?
#1
Pcm bad?
I am a new member in need of help with possible short or pcm problem. I have a 2001 ram 1500 with 5.2l. I Last year i had a p1740 and replaced governor pressure solinoid and torque converter filter and fluid. Truck ran and shifted fine. I am currently getting p1763 and p1762 code. I replaced governor pressure solinoid and transducer again and also installed transgo shift kit in valve body. I cleared codes but as soon as I start truck check engine p1763 within 10 seconds. I tested pin 4 the signal wire for gov pressure on trans harness plug and am getting 5 .14 volts with plug disconnected from transmission I should only be getting I volt or less I think. I searched for a short in wiring and found nothing. When I unplugged pcm c2 I tested voltage at pin 29 on pcm and am getting 5.14 volts is this normal or is my pcm bad. Sorry for long post
#2
With the trans disconnected, you shouldn't be seeing ANY voltage on pin 4..... You have either a short in the harness, or the PCM has gone bad. Test resistance between pin 4 and pin 2, with ignition off, C2 and trans unplugged. Should be infinite, if it is, bad PCM, if it isn't, short in the harness.
#4
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