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Home >> Chevrolet >> 2006 >> Silverado 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1138 (Engine Cooling System) >> Diagnostic Information and Procedures >> DTC P2600-P2603 >> Conditions for Setting the DTC >> P2602

Conditions for Setting the DTC: P2602

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.

The ECM detects the pump control circuit is shorted to ground. The condition exists for 4 seconds or a cumulative of 30 seconds.