Self-Diagnostic System - 3.8L Engine: Notes
NOTE:
Information contained herein is specifically applicable to models equipped with 3.8L engine. Self-diagnostic information for model equipped with 5.7L engine is not available. For testing information for models equipped with 5.7L engine, go to SYMPTOM TESTS
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NOTE:
Diagnostic trouble code tests are written specifically for use with General Motors Tech I or Tech II scan tools. Generic scan tool can be used but may have limited functions. This article only covers the portion of those systems which relates to cruise control system diagnosis. For further information, see appropriate SELF-DIAGNOSTICS article in ENGINE PERFORMANCE.