With Generic Scan Tool

Engine Control Module (ECM), Replacing

Procedure
First, check control module identification of the previous Engine Control Module (ECM) as follows:
- Connect diagnostic tester. Diagnostic Tester, Connecting
- Switch ignition on.
- Under address word 33, select "Diagnostic mode 9: vehicle information".
- Select the vehicle information "Test-ID 04: Calibration Identification".
Control module identification will be indicated, e.g.:
3B0907551CG 0001
- End diagnosis and switch ignition off.







- Remove securing screws at cover of protective housing for control modules (arrows) and remove cover.







- Using a screwdriver, carefully pry off retaining bracket (arrow).
- Then disengage connector from control module and disconnect.
- Remove old control module and insert new one.
- Check whether the new control module identification matches the old control module identification.
- Generate readiness code. Monitors, Trips, Drive Cycles and Readiness Codes