Circuit/System Verification
- Operate the vehicle to induce a shift from second to third gear while observing TFP Switch 1. Perform this action 2 times. The TFP Switch 1 should change states from Low to High.
- If the TFP Switch does not change states and no other DTCs set, replace the control solenoid (w/body and TCM) valve assembly.
- If any other DTCs set, diagnose that DTC first.
- Operate the vehicle to obtain sixth gear 2 times and then check for DTCs other than DTC P0736.
- If any other DTCs set, diagnose that DTC first.
- If no other DTC sets, continue on with diagnostics.
- Operate the vehicle by shifting from Park to Reverse, then while in reverse, operate the vehicle with the calculated throttle position greater than 8 percent for 5 seconds, perform this maneuver a minimum of 3 times.