Medium and Heavy Trucks
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Hi my name is***** will be glad to help. What is the model number of your transmission?
Click on this link for the troubleshooting info .
(will show “F” in the display)
Check the harness and voltage to the shift panel and TCM. The schematics are in the link I posted to identify the circuits. Let me know
Sounds good. There is also a power up sequence test shown in the manual. Its lengthy but follow through the steps and let me know how you make out.
Hi Paul Thanks for the update. What did you get for voltage to the shift panel and TCM? How did you make out with the results of the power up sequence in the manual? What were the results from those tests?