Operation CHARM: Car repair manuals for everyone.

A: Shift Solenoids





SOLENOID OPERATION CHART - CD4E
* Not allowed by hydraulics.
** Powertrain control module (PCM) commanded.
*** When a manual pull-in occurs above a calibrated speed, the transaxle will not downshift from the higher gear until the vehicle speed drops below this calibrated speed.

Shift Solenoid Failure Mode Chart "Always OFF"
Failed OFF due to PCM and/or vehicle wiring concerns, and/or solenoid electrically stuck off, and/or hydraulically or mechanically stuck off.








* OVERDRIVE cancelled.
** When a manual pull-in occurs above a calibrated speed the transaxle will not downshift from the higher gear until the vehicle speed drops below this calibrated speed.





* OVERDRIVE cancelled.
** When a manual pull-in occurs above a calibrated speed the transaxle will not downshift from the higher gear until the vehicle speed drops below this calibrated speed.
*** No Forward Movement

Shift Solenoid Failure Mode Chart "Always ON"
Failed ON due to PCM and/or vehicle wiring concerns, and/or solenoid electrically stuck on, and/or hydraulically or mechanically stuck on.





* OVERDRIVE cancelled.
** When a manual pull-in occurs above a calibrated speed the transaxle will not downshift from the higher gear until the vehicle speed drops below this calibrated speed.
*** No Forward Movement





* OVERDRIVE cancelled.
** When a manual pull-in occurs above a calibrated speed the transaxle will not downshift from the higher gear until the vehicle speed drops below this calibrated speed.

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PINPOINT TEST A: SHIFT SOLENOIDS