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Diagnostic System Check - Cruise Control Notes

DIAGNOSTIC SYSTEM CHECK TEST DESCRIPTION Steps 1-6 View Full Image The number(s) below refer to the step number(s) on the diagnostic table. Lack of communication may be due to a partial malfunction of the class 2 serial data circuit or due to a total malfunction of the class 2 serial data circuit. The specified procedure will determine the particular condition. The presence of DTCs which begin with "U" indicate some other module is not communicating. The specified procedure will compile all the available information before tests are performed. The presence of DTCs which pertain to the ABS/TCS system must be diagnosed first. The specified procedure will compile all the available information before tests are performed. The presence of DTCs which pertain to the transaxle must be diagnosed after any ABS/TCS codes. The specified procedure will compile all the available information before tests are performed.

Expert:	Wicked Wrench
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Answered:	9/14/2009

ASE/GM Master Certified 25Years

GM Master Certified ASE Master Certified 25 Years Dealership Experience