1.2 Six-Step Troubleshooting Procedure
WARNING: This page is about a different car, the 2004 Dodge Sprinter. However, it is still accessible from the selected car via links, so may be relevant.
Diagnosis of the engine control module (ECM) and sentry key immobilizer system (SKREEM) is done in six basic steps:
- verification of complaint
- verification of any related symptom
- symptom analysis
- problem isolation
- repair of isolated problem
- verification of proper operation
NOTE:
All tests in this article should be performed with the engine at operating temperature, unless otherwise specified within a particular test.