|
|
STANDARD PROCEDURE TCM QUICK LEARN The quick learn procedure requires the use of a scan tool. This program allows the electronic transmission system to recalibrate itself. This will provide the proper transmission • Transmission Assembly Replacement • Transmission Control Module Replacement • Solenoid Pack Replacement • Clutch Plate and/or Seal Replacement • Valve Body Replacement or Recondition To perform the Quick Learn Procedure, the following conditions must be met: • The brakes must be applied • The engine speed must be above 500 rpm • The throttle angle (TPS) must be less than 3 degrees • The shift lever position must stay in PARK until prompted to shift to overdrive • The shift lever position must stay in overdrive after the Shift to Overdrive prompt until the DRB T indicates the procedure is complete • The calculated oil temperature must be above 60° and below 200° DRIVE LEARN When a transmission is repaired and a Quick Learn procedure has been performed on the Transmission Control NOTE: It is not necessary to perform the complete Drive Learn procedure every time the TCM is Quick LEARN A SMOOTH 1ST NEUTRAL TO DRIVE SHIFT Perform this procedure only if the complaint is for a delayed or harsh shift the first time the transmission is put into NOTE: The transmission oil temperature must be between 80 - 110°F (27 - 43°C). 1. Start the engine only when the engine and ignition have been off for at least ten (10) minutes. 2. With the vehicle at a stop and the service brake applied, record the 1st N-D UD CVI while performing a Neutral to Drive shift. The 1st N-D UD CVI accounts for air entrapment in the UD clutch that may occur after the engine 3. Repeat Step 1 and Step 2 until the recorded 1st N-D UD CVI value stabilizes. NOTE: It is important that this procedure be performed when the transmission temperature is between 80 - LEARN A SMOOTH NEUTRAL TO DRIVE GARAGE SHIFT Perform this procedure if the complaint is for a delayed or harsh shift when the transmission is put into gear after HB ELECTRONIC CONTROL MODULES - SERVICE INFORMATION 8E - 221 |