Conditions For Setting The DTC
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
DTC will set under the following condition:
- DTC sets when the TCM detects an invalid condition and parity errors occurring over consecutive ignition cycles.