03 Expy, tranny/electrical problem
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Senior User
Joined: Mar 2008
Posts: 213
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From: Raleigh, NC
03 Expy, tranny/electrical problem
B1602 PATS Recieved Invalid FMT/Key CD
P0753 Shift Solenoid A Electrical
P0758 Shift Solenoid B Electrical
P0740 Torque Converter Clutch Fault
P1760 Pressure Control Solenoid A Short
p0305 Cylinder 5 misfire Detected
P0316 Engine misfire Detected on Startup
The Trans will unlock while driveing for a few seconds then lock back up and drive fine, it seems to be worse over the past couple days. It is no different cold or hot. I also noticed the head lights dim and the voltage on my scanner drops to around 12 volts when the trans disengages. When it is not acting up it drives and shifts perfect.
I have checked a few grounds that were visible and cleaned battery connections. There has to be a wire harness or ground that I am missing some where that is bad??
The misfire code has been fixed, not related.
P0753 Shift Solenoid A Electrical
P0758 Shift Solenoid B Electrical
P0740 Torque Converter Clutch Fault
P1760 Pressure Control Solenoid A Short
p0305 Cylinder 5 misfire Detected
P0316 Engine misfire Detected on Startup
The Trans will unlock while driveing for a few seconds then lock back up and drive fine, it seems to be worse over the past couple days. It is no different cold or hot. I also noticed the head lights dim and the voltage on my scanner drops to around 12 volts when the trans disengages. When it is not acting up it drives and shifts perfect.
I have checked a few grounds that were visible and cleaned battery connections. There has to be a wire harness or ground that I am missing some where that is bad??
The misfire code has been fixed, not related.
Thread Starter
|
Senior User
Joined: Mar 2008
Posts: 213
Likes: 0
From: Raleigh, NC
Ok, I will try to get it on a lift and check that, I followed it up as far as I could while laying in the garage.
The truck actually cut off today while driving about 30 mph, so if it is a short I imagine it is a pretty bad one.
The truck actually cut off today while driving about 30 mph, so if it is a short I imagine it is a pretty bad one.
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