Diagnostic Aids
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- A plugged control main filter may cause the DTC to set.
- A cracked internal suction filter tube or damaged tube seal may cause the DTC to set.
- A stuck lube regulator valve may cause the DTC to set.
- Must attempt to select range in order to experience a condition.
- May have to wait several hours prior to restarting vehicle to experience the condition.
- This DTC is most likely the result of no pressure and not wiring or the pressure switch module.