Diagnostic Aids
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The following can cause an intermittent condition:
- A short in the ignition 1 voltage circuit between the PPS module and the body relay block
- An open or high resistance in the ignition 1 voltage circuit between the PPS module and the body relay block
Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
The PPS will set DTC 024 when the ignition voltage has fallen bellow 8 volts. The PPS will set DTC 024 as a history code only. This is a normal condition for DTC 024 and it should be diagnosed as a current DTC.