Engine Control Module: Testing and Inspection
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More supporting gear
Torque wrench
Use the factory procedure with the right tightening tool.
Manual-based work becomes much easier when you can torque correctly.
Shop on Amazon →Trim tool set
Useful for clips, covers, and trim pieces called out by the manual.
Most manual procedures assume you have a good trim removal kit.
Shop on Amazon →Multimeter kit
Great for electrical troubleshooting and manual-tested circuits.
Electrical work in manuals often needs a meter more than another wrench.
Shop on Amazon →ENGINE CONTROL MODULE PROGRAMMING AND SETUP
The following service procedures require either a programming or a setup event be performed for a complete repair.
ECM Replacement
If the engine control module (ECM) is replaced, the following procedures must be performed:
1. ECM Reprogramming-Refer to Service Programming System (SPS).
2. Crankshaft Position (CKP) Variation Learn-Refer to CKP System Variation Learn Procedure in Computers and Control Systems.
ECM Reprogramming
If the ECM needs to be reprogrammed, refer to Service Programming System (SPS).
Setup for Component Replacement
The replacement of some components will require a setup procedure for complete repair.
If any of the following components are replaced, a CKP Variation Learn Procedure must be performed. Refer to CKP System Variation Learn Procedure.
- Engine replacement
- Any engine repair that disturbs the CKP sensor or it's relationship with the crankshaft reluctor wheel
- CKP sensor