Engine Cooling System - Diagnostic Trouble Codes
ENGINE COOLING SYSTEM - DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC P00B3 or P00B4 | P00B3: Radiator Coolant Temperature (RCT) Sensor Circuit Low Voltage P00B4: Radiator Coolant Temperature (RCT) Sensor Circuit High Voltage |
| DTC P00B6 | P00B6: Radiator Coolant Temperature (RCT) Sensor Performance |
| DTC P00B7 | P00B7: Radiator Coolant Temperature (RCT) Insufficient Flow |
| DTC P0480 or P0481 (w/single fan) | P0480: Cooling Fan Relay 1 Control Circuit P0481: Cooling Fan Relay 2 Control Circuit |
| DTC P0597-P0599 | P0597: Engine Coolant Thermostat Heater Control Circuit P0598: Engine Coolant Thermostat Heater Control Circuit Low Voltage P0599: Engine Coolant Thermostat Heater Control Circuit High Voltage |
| DTC P2181 | P2181: Engine Cooling System Performance |