LEMON Manuals: Even more car manuals for everyone
Home >> Hummer >> 2003 >> H2 >> Repair and Diagnosis >> External Pages >> Different car >> Section 219 (Starting System) >> Diagnostic Information & Procedures >> Diagnostic System Check - Engine Electrical >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the Test Procedure.

4  . 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.

5  . The symptom list in Symptoms will determine the correct diagnostic procedure to use.

6  . 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.

scientia non olet · About LEMON Manuals