Conditions For Running The DTC
WARNING: This page is about a different car, the 2003 GMC Savana and 2003 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
- DTCs P0335, P0336, P0341 and P1345 are not set.
- The Engine Coolant Temperature (ECT) is more than 149° F (65° C).