Engine Cooling System - Diagnostic Trouble Codes
ENGINE COOLING SYSTEM - DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| DTC P00B3 or P00B4 | DTC P00B3 00 Radiator Coolant Temperature (RCT) Sensor Circuit Low Voltage DTC P00B4 00 Radiator Coolant Temperature (RCT) Sensor Circuit High Voltage |
| DTC P00B7 | DTC P00B7 00 Engine Coolant Flow Insufficient |
| DTC P0480, P0481, or P0482 (LNP) | DTC P0480 01 Cooling Fan Relay 1 Control Circuit Short to Battery DTC P0480 02 Cooling Fan Relay 1 Control Circuit Short to Ground DTC P0480 04 Cooling Fan Relay 1 Control Circuit Open DTC P0480 54 Cooling Fan Relay 1 Control Circuit High Temperature DTC P0481 01 Cooling Fan Relay 2 Control Circuit Short to Battery DTC P0481 02 Cooling Fan Relay 2 Control Circuit Short to Ground DTC P0481 04 Cooling Fan Relay 2 Control Circuit Open DTC P0481 54 Cooling Fan Relay 2 Control Circuit High Temperature DTC P0482 01 Cooling Fan Relay 3 Control Circuit Short to Battery DTC P0482 02 Cooling Fan Relay 3 Control Circuit Short to Ground DTC P0482 04 Cooling Fan Relay 3 Control Circuit Open DTC P0482 54 Cooling Fan Relay 3 Control Circuit High Temperature |
| DTC P0480-P0482 or P0691-P0696 (LNP or LNQ) | DTC P0480 00 Cooling Fan Relay 1 Control Circuit Malfunction DTC P0481 00 Cooling Fan Relay 2 Control Circuit Malfunction DTC P0482 00 Cooling Fan Relay 3 Control Circuit Malfunction DTC P0691 00 Cooling Fan Relay 1 Control Circuit Low Voltage DTC P0692 00 Cooling Fan Relay 1 Control Circuit High Voltage DTC P0693 00 Cooling Fan Relay 2 Control Circuit Low Voltage DTC P0694 00 Cooling Fan Relay 2 Control Circuit High Voltage DTC P0695 00 Cooling Fan Relay 3 Control Circuit Low Voltage DTC P0696 00 Cooling Fan Relay 3 Control Circuit High Voltage |
| DTC P0480, P0481, P0691, P0692, P0693, or P0694 (LBN, LEA, LE9, or LTD) | DTC P0480 Cooling Fan Relay 1 Control Circuit DTC P0481 Cooling Fan Relays 2 and 3 Control Circuit DTC P0691 Cooling Fan Relay 1 Control Circuit Low Voltage DTC P0692 Cooling Fan Relay 1 Control Circuit High Voltage DTC P0693 Cooling Fan Relays 2 and 3 Control Circuit Low Voltage DTC P0694 Cooling Fan Relays 2 and 3 Control Circuit High Voltage |
| DTC P0597-P0599 | DTC P0597 00 Engine Coolant Thermostat Heater Control Circuit DTC P0598 00 Engine Coolant Thermostat Heater Control Circuit Low Voltage DTC P0599 00 Engine Coolant Thermostat Heater Control Circuit High Voltage |
| DTC P0691-P0694 (LDE, LXV or 2H0) | DTC P0691 00 Cooling Fan Relay 1 Control Circuit Low Voltage DTC P0692 00 Cooling Fan Relay 1 Control Circuit High Voltage DTC P0693 00 Cooling Fan Relay 2 Control Circuit Low Voltage DTC P0694 00 Cooling Fan Relay 2 Control Circuit High Voltage |