Shift Solenoids Pre-Diagnosis
Shift Solenoids Pre-DiagnosisUse the following shift solenoid operation information when carrying out Pinpoint Test A.
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.
Solenoid Operation Chart
*No engine braking
Shift Solenoid Failure Mode Chart "Always Off to
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.