Conditions for Setting the DTC
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2003 GMC Yukon XL, 2003 GMC Yukon, 2003 Chevrolet Tahoe, 2003 Chevrolet Suburban, and 2003 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
The ignition switch is cycled to CRANK, released to ON and then cycled to OFF.
- The BCM turns the Passlock™ sensor power OFF after the ignition switch is turned OFF.
- If the BCM still senses battery voltage for 1 second after the shut down of voltage, this DTC will set.