Pin Procedure - Replace/Adapt Engine Control Module (ECM) And Control Module For Anti-Theft Immobilizer: Notes

When a vehicle requires the replacement of both the ECM and immobilizer control module, the ignition keys need to be replaced as well. Ignition keys must be adapted after both control modules have been replaced. Appropriate control modules must be obtained from the parts department based on the Vehicle Identification Number (VIN) and engine code.

First determine method by which data is exchanged between the Engine Control Module (ECM) and Immobilizer control module. Use Read Measuring Value Block (function 08) and observe data in display group 001, display field 1. See READ MEASURING VALUE BLOCK (FUNCTION 08)  . Select appropriate procedure below.