GM Service Manual Online
For 1990-2009 cars only

Electronic Suspension Control Module (ESCM) Replacement/Reprogramming

If the electronic suspension control module (ESCM) is replaced, the following procedures must be performed:

  1. ESCM programming--Refer to Service Programming System (SPS) .
  2. Revise the trim set calibration using the scan tool ALC Trimset Special Function. Refer to Suspension Position Calibration .