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Page 12 of the supplement talks about voltages and it says approximately 0.5 volts closed … signal voltage increases to greater than 4.5 volts at wide open throttle. Thanks for the help, I have another TCM here same year as mine I can pop in tomorrow and see. Sent from my iPhone using Tapatalk

1 of the first things I tried was hitting all connectors with contact cleaner, they all looked bright and shiny. Just got back from test run after adjusting TPS, I set it at .502vdc. It started out good but went into limp mode after warming up. I tested TPS again when I got home with everything...

Was able to pull codes today (used different jumper) . New code pooped up, 87, Did some testing on TPS, I think retired warhorse mentioned to check. With glow plug controller disconnected I got: 0.7vdc (no pedal) - 4.49vdc (pedal to the floor) from wire 355B 5.02vdc from wire 350C Manual says...

Codes were 38, 85 & 86. 38 torque converter clutch 85 undefined ratio error 86 low ratio error I’ve changed the TISS and TOSS no change. When everything is cold transmission runs normal RPM to MPH. After it heats up it goes into limp mode 2nd gear only. When hot it won’t move if I shift into...

Yes, truck level, warmed up and ran thru gears. Sent from my iPhone using Tapatalk

Yes, that’s where I got the codes from, what I don’t see is what to check. Or maybe I just don’t understand what it’s telling me. Sent from my iPhone using Tapatalk

I’m getting codes 38, 85 and 86. Where to start ? I unplugged the external connectors and cleaned with electrical contact cleaner. Where next ? Issue is she’s going into limp mode. I checked battery voltage, 14.37 coming into rear battery, reset CB, repaired 2 wire that looked if’y, checked...