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.