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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 167 (Engine Controls And Fuel - 3.6L (LGX LF4) - DTC P0650 To DTC P3436 And Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Charge Air Cooler Coolant Pump Diagnosis >> 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
Relay Coil B+ P023A P023A - -
Relay Switch B+ 1 1 - -
Relay Control P023B P023A P023C -
Relay Controlled Output 1 1 2 -
Charge Air Cooler Coolant Pump Ground - 1 - -
  1. Charge Air Cooler Coolant Pump inoperative without a DTC.
  2. Charge Air Cooler Coolant Pump always ON without a DTC.