No Published Service Information for DTC P0770 - kw 372LE 3L30 MIL P0740 P0741 performance TCC transmission

When servicing the vehicle with the VIN you entered, the following diagnosis might be helpful if the vehicle exhibits the described symptoms.

No TSB or service information regarding DTC P0770.

If DTC P0770 sets follow the diagnostic charts for TCC circuit check and solenoid performance as follows:

1. P0740 for the 3L30 3sp automatic
2. P0741 for the 372LE 4sp automatic

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Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed. If these steps do not resolve the condition, please contact GM TAC for further diagnostic assistance. This diagnostic approach was developed for the vehicle with the VIN you entered and should not be automatically be used for other vehicles with similar symptoms.

(96 Chevrolet Tracker)

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