Conditions For Running DTC
WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Suburban, and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- DTCs P0601, P0602, P1518, or P2108 are not set.
- The ignition switch is in the crank or run position.
- The ignition voltage is more than 5.23 volts.