Section 07-01: Transmission, Automatic—AODE
1994 Mustang Workshop Manual
DIAGNOSIS AND TESTING

Transmission Drive Cycle Test

 

After performing the Quick Test, use the following Drive Cycle Test for checking transmission continuous codes:

NOTE: The Drive Cycle Test must be followed exactly. A malfunction must occur four times consecutively for DTCs 617, 618, 619 to be set, and five times consecutively for continuous DTC 628.

  1. Record and then erase Quick Test DTCs.
  1. Warm engine to normal operating temperature.
  1. Make sure transmission fluid level is correct.
  1. With transmission In OVERDRIVE, moderately accelerate from stop to 80 Km/h (50 mph). This allows the transmission to shift into fourth gear. Hold speed and throttle open steady for a minimum of 15 seconds.
  1. With transmission in OVERDRIVE, press TCS (TCIL should illuminate) and moderately accelerate from stop to 64 Km/h (40 mph). This allows transmission to shift into third gear. Hold speed and throttle open steady for a minimum of 15 seconds (30 seconds above 4000 ft).
  1. Press TCS (TCIL should turn off) and accelerate from 64 Km/h (40 mph) to 80 Km/h (50 mph). This allows transmission to shift into fourth gear. Hold speed and throttle position steady for a minimum of 15 seconds.
  1. With transmission in fourth gear and maintaining steady speed and throttle opening, lightly apply and release brake (to operate stoplamps). Then hold speed and throttle steady for an additional five seconds minimum.
  1. Brake to a stop and remain stopped for a minimum of 20 seconds.
  1. Repeat Steps 4 through 8 at least five times.
  1. Perform Quick Test and record continuous DTCs.