Shift Solenoids Pre-Diagnosis

Use the following shift solenoid operation information when carrying out Pinpoint Test A. Test A: Shift and Torque Converter Clutch Solenoids








Solenoid Operation Chart
a When a manual pull-in occurs above a calibrated speed the transmission will downshift from the higher gear until the vehicle speed drops below this calibrated speed.
EC = Electronically controlled.
HD = Hydraulically disabled.

Shift Solenoid Failure Mode Chart "Always Off"








Failed off due to powertrain control module and or vehicle wiring concerns, shift solenoid electrically or hydraulically stuck off.
*No engine braking.

Shift Solenoid Failure Mode Chart "Always On"








Failed on due to powertrain control module and or vehicle wiring concerns, shift solenoid electrically or hydraulically stuck on.
*No engine braking.
*No engine braking.