Pinpoint Tests-Non OSC Equipped Vehicles

Pinpoint Tests-OSC Equipped Vehicles








Special Tool(s)

Shift Solenoid Pre-Diagnosis
Any time an electrical connector or solenoid body is disconnected, inspect the connector for terminal condition, corrosion and contamination. Also inspect the connector seal for damage. Clean, repair or install new as necessary.
Use the following shift solenoid operation information when carrying out Pinpoint Test A.





Solenoid Operation Chart

1 Low line pressure
2 Control line pressure
3 High line pressure














Shift Solenoid Failure Mode Chart "Always Off"

Failed OFF due to powertrain control module and/or vehicle wiring concerns, solenoid electrically, mechanically or hydraulically stuck OFF.














Shift Solenoid Failure Mode Chart "Always On"

Failed OFF due to powertrain control module and/or vehicle wiring concerns, solenoid electrically, mechanically or hydraulically stuck ON.











Pressure Control Solenoid Failure Mode Chart "Always Low"














Pressure Control Solenoid Failure Mode Chart "Always High"