Transmission Control Module

NOTE: This procedure may also be identified as Quick Learn procedure.

The Transmission Control Module (TCM) must be programmed after replacement. Pinion factor must be set for all new transmission control modules. If pinion factor is not set or set incorrectly, any speedometer, speed control, rolling door locks or other devices operated by Powertrain Control Module (PCM) or Body Control Module (BCM) will not function properly.

Before performing Quick Learn procedure, the following conditions must be met:

Transmission must be shifted into Overdrive (OD) with engine running and transmission fluid at correct level.
Brakes must be applied.
Engine must be at idle.
Throttle Position (TP) must be less than 3 degrees.
Shift lever must be shifted into Neutral position until prompted by scan tool to be shifted to OD.
Shift lever must be in OD position until scan tool indicates procedure is complete.
Oil temperature must be 60-200°F (15-93°C).

To perform Quick Learn procedure, select TRANSMISSION, MISCELLANEOUS then QUICK LEARN on scan tool. Follow on-screen instructions. Ensure conditions listed above have been met or procedure may abort.