Circuit Test TG - Electronic Transmission Continuous Memory Service Codes: E4OD

With transmission gear selector in DRIVE position, press Overdrive Cancel Switch (LED should light). Moderately accelerate vehicle to 40 MPH for at least 15 seconds (30 seconds above 4000' elevation). Transmission should be in 3rd gear. While holding speed steady, press Overdrive Cancel Switch (LED should go off) and accelerate from 40 MPH to 50 MPH. Transmission should shift from 3rd gear to 4th gear. Hold speed steady for 15 seconds. While holding speed steady, lightly apply and release brakes to turn brakelights on. Maintain 50 MPH for about 5 seconds. Stop and park vehicle for a minimum of 20 seconds with transmission gear selector in DRIVE position. Repeat procedure 5 times.