A: Shift Solenoids

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 replace as required.

SHIFT SOLENOIDS PRE-DIAGNOSIS

Solenoid Operation Chart (Part 1 Of 2):

Solenoid Operation Chart (Part 2 Of 2):

Use the shift solenoid operation information when performing 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.

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.

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.


TEST STEPS:

Test A1 - A2:

Test A2 - A3:

Test A4 - A5:

Test A5 - A6:

Test A6:

Test A6 - A7:

Test A7:

Test A8:

NOTE:
- Read and record all Diagnostic Trouble Codes (DTCs). All digital Transmission Range (TR) sensor and Vehicle Speed Sensor (VSS) DTCs must be repaired before entering Output State Control (OSC).
- Refer to the Transmission Vehicle Harness Connector illustration. Scan Tool Testing and Procedures