Possible causes
– Faulty Auxiliary Coolant Pump Relay
– Blocked pump control passage
– Faulty Auxiliary Coolant Pump
– Auxiliary Coolant Pump harness is open or shorted
– Auxiliary Coolant Pump circuit poor electrical connection
– Blocked pump control passage
– Faulty Auxiliary Coolant Pump
– Auxiliary Coolant Pump harness is open or shorted
– Auxiliary Coolant Pump circuit poor electrical connection
When is the code detected?
The Engine Control Module (ECM) detects the engine coolant temperature remains greater than 110