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.
All conditions for running the DTC are met, and either of the following conditions occur for 4.3 out of 5 seconds.
- The PCM commands the TCC PWM solenoid valve to OFF, 0 percent, and the voltage input remains low, zero volts.
- The PCM commands the TCC PWM solenoid valve to ON, 100 percent, and the voltage input remains high, B+.