Test Description
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. 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 procedures.
- 2 - This step will make sure there are no other DTCs stored that will affect the operation of the glow plug system.
- 3 - This step will check each glow plug for an open.
- 4 - This step will check each glow plug feed circuit for an open.