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Vehicles With A-604 Transaxle

WARNING: This page does not describe the selected car, but rather 85 other vehicles, including the 1993 Plymouth Voyager, 1993 Plymouth Sundance, 1993 Plymouth Laser, 1993 Plymouth Grand Voyager, and 1993 Plymouth Acclaim. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If repairs other than battery replacement have been made to late model Chrysler Motors vehicles, always refer to verification tests VER-1, 2, and 3 in the ENGINE PERFORMANCE section.

This procedure should be used on any Chrysler vehicle equipped with an A-604 transaxle. It will quickly optimize shift quality after disconnecting battery or loss of voltage supply to the transaxle controller.

  1. Warm transaxle to normal operating temperature by allowing engine to idle for proper time depending on ambient temperature. See TRANSAXLE FLUID WARM-UP TIME table.
    TRANSAXLE FLUID WARM-UP TIME

    Ambient Temperature Engine Idle Time (Minutes)
    0°F (-18°C) 8
    20°F (-7°C) 6
    40°F (4°C) 4
    60°F (16°C) 2
    80°F (27°C) 0
  2. To set transaxle upshift learn procedure, operate vehicle and maintain constant throttle opening during shifts.
    CAUTION: DO NOT move accelerator pedal during transaxle upshifts.
  3. Accelerate vehicle with throttle opening angle in range of 10 to 50 degrees. Operate vehicle until transaxle performs 1-2, 2-3, and 3-4 upshifts at least 15-20 times.
    NOTE: Accelerating vehicle from stop to approximately 45 MPH at moderate throttle angle (20-25 degrees) is sufficient.
  4. To set transaxle kickdown learn procedure, operate vehicle with vehicle speed less than 25 MPH, making 5-8 wide-open throttle kickdowns to 1st gear from either 2nd or 3rd gear.
    CAUTION: Allow transaxle to operate in 2nd or 3rd gear at least 5 seconds before performing kickdown.
  5. With vehicle speed greater than 25 MPH, make 5-8 part throttle to wide-open throttle kickdowns to either 3rd or 2nd gear from 4th gear (for example, 4-3 or 4-2 kickdowns).
CAUTION: Operate transaxle in 4th gear for at least 5 seconds at steady throttle position before performing kickdown.
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