LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 174 (Engine Cooling System) >> Diagnostic Information and Procedures >> DTC P2600-P2603: Auxiliary Coolant Pump >> Diagnostic Fault Information

Diagnostic Fault Information

WARNING: This page is about a different car, the 2017 Cadillac ATS. 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 1 P2601
Auxiliary Coolant Pump Relay Control P2600, P2602, 2 P2600, P2602, 1 P2600, P2603 P2601
  1. Auxiliary coolant pump inoperative.
  2. Auxiliary coolant pump always ON
scientia non olet · About LEMON Manuals