LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1684 (Instrument Panel, Gages, And Console) >> Diagnostic Information and Procedures >> Diagnostic System Check - Instrument Cluster >> Test Description

Test Description

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. 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 diagnostic table.

  1. 2. 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.
  2. 3. The symptom list in Symptoms will determine the correct diagnostic procedure to use.
  3. 4. The presence of DTCs U1000-U1305 indicate some other module is not communicating on the class 2 serial data circuit. The specified procedure will compile all the available information before tests are performed.
Fig 1: Diagnostic System Check - Instrument Cluster
G01587408Courtesy of GENERAL MOTORS CORP.
scientia non olet · About LEMON Manuals