Taurus V6-195 3.2L DOHC SHO (1994)
Powertrain Control Module: Technical Service Bulletins
A/T - AX4S/AX4N Shift Concerns/Damage
Article No.
94-16-6
08/10/94
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POWERTRAIN CONTROL MODULE - INCORRECT USAGE WILL CAUSE SHIFT CONCERNS OR TRANSAXLE DAMAGE - SERVICE
TIP
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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.
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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.
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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.
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The shift solenoid sequencing between the two transaxles (AX4N or AX4S) are different and requires a different PCM for each application.
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If PCM replacement is required, determine which transaxle (AX4N or AX4S) is installed in the vehicle being serviced.
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Locate the vehicle certification tag located on the driver's side door pillar.
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The letter "T" designates an AX4S transaxle. Refer to Figure 1.
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The letter "X" designates an AX4N transaxle. Refer to Figure 1.
