Wiring Harness: Service and Repair

Internal Harness Service





Removal
1. With the vehicle in NEUTRAL, position it on a hoist.
2. Disconnect vehicle harness from the transmission case (16-pinch) connector.





3. Drain the transmission fluid.
^ Remove all the transmission fluid pan screws except for 2 in the front. Loosen the 2 front transmission fluid pan screws. Pry the rear of the transmission fluid pan down and allow fluid to drain. After fluid is drained, remove the front 2 transmission fluid pan screws.





4. NOTE: The transmission fluid pan gasket is reusable. Clean and inspect for damage, if not damaged, the gasket should be reused.

Remove the transmission fluid pan.
1 Remove the transmission fluid pan.
2 Remove the transmission fluid pan gasket.





5. NOTE: The main control assembly does not need to be removed.

Remove the transmission fluid filter.
1 Remove the transmission fluid filter screw.
2 Remove the transmission fluid filter.





6. Clean and inspect the transmission fluid pan and magnet. Clean all mating surfaces.





7. Remove the main control valve body wire loom.
^ Carefully lift up on the wire loom guide and protector, and disengage the retaining pins from the solenoid clamps.





8. Disconnect the solenoid electrical connectors.
1 Disconnect the SSA, SSB, SSC and SSD electrical connectors.
2 Disconnect the torque converter clutch (TCC) solenoid electrical connector.
3 Disconnect the electronic pressure control (EPC) solenoid electrical connector.





9. CAUTION: The torque converter clutch (TCC) solenoid and converter modulator valve may pop out of their bore. This may damage the solenoid or converter modulator valve.

CAUTION: Shift solenoids may pop out of their bore. This may damage the solenoids.

Remove the EPC and SSB solenoids.
1 Remove the solenoid clamp screws.
2 Remove the solenoid clamp.
3 Remove the EPC and SSB solenoids.





10. CAUTION: Do not pry on the other wires or damage the connector case surface.

Disconnect the turbine shaft speed (TSS) sensor electrical connector from the transmission case (16-pinch) electrical connector.
1 Disconnect the TSS sensor electrical connector.
2 Remove from the TSS sensor wire locator.





11. CAUTION: Do not overstretch the retaining spring, overstretching can damage the spring.

Remove the transmission case (16-pinch) electrical connector retaining spring.





12. CAUTION: Do not damage the connector or harness.

Remove the transmission case (16-pinch) electrical connector.
^ Compress the tabs on the transmission case (16-pinch) electrical connector.
^ Push the transmission case (16-pinch) electrical connector out of transmission case.





Installation

1. NOTE: Make sure the tab is in the lock position.

NOTE: Install 2 new O-rings on the transmission case (16 pinch) electrical connector.

Install the transmission case (16-pinch) electrical connector.
^ Lubricate the transmission case (16-pinch) electrical connector O-rings with petroleum jelly.





2. Press the transmission case (16-pinch) electrical connector through the case until a click is heard.





3. NOTE: Align the slot on the turbine shaft speed (TSS) sensor electrical connector with the slot in the (16-pinch) case connector.

Install the TSS sensor wire.
1 Install the TSS sensor wire into (16-pinch) case connector.
2 Install the TSS sensor wire into the locator.





4. CAUTION: Do not overstretch the retaining spring, overstretching can damage the spring.

Install the transmission case (16-pinch) electrical connector retaining spring.





5. Install the EPC and SSB solenoids.





6. NOTE: The solenoid clamp must be installed in the torque converter clutch (TCC) and electronic pressure control (EPC) solenoid grooves, shift solenoid pockets and the No. 204 plug.

Install the solenoid clamp.
1 Position the solenoid clamp on the main control valve body.
2 Install the solenoid clamp screws.
^ Tighten to 7 Nm (62 lb-inch).





7. Connect the SSA and SSC shift solenoid (SS) electrical connectors.





8. Connect the TCC, SSD, SSB and EPC solenoid electrical connectors.





9. CAUTION: Excessive pressure may break the retaining pins.

Install the wire harness guide and protector.
^ Align the retaining pins to the holes in the solenoid clamps and gently press in the wire harness guide and protector.





10. Install the transmission fluid filter.
1 Position the transmission fluid filter on the main control valve body.
2 Install the transmission fluid filter screw.
^ Tighten to 10 Nm (89 lb-inch).





11. Position the oil pan magnet in the transmission fluid pan.





12. NOTE: The transmission fluid pan gasket is reusable. Clean and inspect for damage, if not damaged, the gasket should be reused.

Install the transmission fluid pan.
1 Position the transmission fluid pan gasket on the transmission fluid pan.
2 Install and align the transmission fluid pan.





13. Loosely install the transmission fluid pan screws.





14. Tighten the transmission fluid pan screws in a crisscross pattern.
^ Tighten to 10 Nm (89 lb-inch).





15. Connect the vehicle harness to the transmission (16 pinch) connector. Make sure the lock is fully engaged.





16. NOTE: Start with a minimum of 3.7L (4 qt) clean automatic transmission fluid.

Fill the transmission with clean automatic transmission fluid to the correct fluid level.