P2603
Coolant Pump Control Circuit High
OBD-II
Cooling
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P0115
Engine Coolant Temperature Circuit
CoolingMedium
P0116
Engine Coolant Temperature Circuit Range/Performance
CoolingMedium
P0117
Engine Coolant Temperature Circuit Low
CoolingMedium
P0118
Engine Coolant Temperature Circuit High
CoolingMedium
P0119
Engine Coolant Temperature Circuit Intermittent
CoolingMedium
P0125
Insufficient Coolant Temperature for Closed Loop Fuel Control
CoolingLow
P0126
Insufficient Coolant Temperature for Stable Operation
CoolingLow
P0128
Coolant Temp Below Thermostat Regulating Temperature
CoolingLow
General reference only — what a code means can vary by make and model. Confirm with a qualified technician.