A/T - AX4S/AX4N Shift Concerns/Damage

Article No.
94-16-6

08/10/94

^ POWERTRAIN CONTROL MODULE - INCORRECT USAGE WILL CAUSE SHIFT CONCERNS OR TRANSAXLE DAMAGE - SERVICE TIP

^ TRANSAXLE - AX4S OR AX4N - CORRECT PCM USAGE - SERVICE TIP

FORD:
1994 TAURUS

LINCOLN-MERCURY:
1994 SABLE

ISSUE:
Powertrain Control Modules (PCM) designed for use in a vehicle equipped with an AX4N transaxle or an AX4S transaxle are not interchangeable.

ACTION:
Read the following statements and refer to the Application Chart for the proper application.

^ If a PCM designed for use in a vehicle equipped with an AX4N transaxle is installed in a vehicle with an AX4S transaxle, TRANSAXLE DAMAGE WILL OCCUR.

^ If a PCM for a vehicle equipped with an AX4S transaxle is installed into a vehicle equipped with an AX4N transaxle, ERRATIC OPERATION WILL OCCUR.

^ The shift solenoid sequencing between the two transaxles (AX4N or AX4S) are different and requires a different PCM for each application.

^ If PCM replacement is required, determine which transaxle (AX4N or AX4S) is installed in the vehicle being serviced.

^ Locate the vehicle certification tag located on the driver's side door pillar.





^ The letter "T" designates an AX4S transaxle. Refer to Figure 1.

^ The letter "X" designates an AX4N transaxle. Refer to Figure 1.






^ Refer to the PCM Application Chart for the proper PCM usage.





OTHER APPLICABLE ARTICLES: NONE
WARRANTY STATUS: INFORMATION ONLY
OASIS CODES: 504000