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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 17 (Engine Cooling System) >> Diagnostic Information and Procedures >> DTC P2600-P2603 >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. However, it is still accessible from the selected car via links, so may be relevant.
Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance
Auxiliary Coolant Pump Relay Coil Ignition Voltage - P2600 - -
Auxiliary Coolant Pump Relay Switched B+ 1 1 - -
Auxiliary Coolant Pump Relay Control P2602 P2600 P2603 -
Auxiliary Coolant Pump Relay Controlled Output 1 1 2 -
  1. Auxiliary coolant pump inoperative.
  2. Auxiliary coolant pump always ON