Diagnostic Aids

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2007 GMC Yukon XL, 2007 GMC Yukon, 2007 Chevrolet Tahoe, 2007 Chevrolet Suburban, and 2007 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.

This DTC will not set during engine idling conditions. The vehicle will need to be driven for the DTC to set.
This test procedure requires that the vehicle battery has passed a load test and its completely charged. Refer to Battery Inspection/Test .
The valve lifter oil manifold (VLOM) solenoids are assigned to the following engine cylinders:
- Solenoid #1-Cylinder #1
- Solenoid #2-Cylinder #4
- Solenoid #3-Cylinder #6
- Solenoid #4-Cylinder #7