Engine Cooling System - Diagnostic Trouble Codes
ENGINE COOLING SYSTEM - DIAGNOSTIC TROUBLE CODES
| DTC | Description |
|---|---|
| DTC P00B3 or P00B4 | Radiator Coolant Temperature Sensor (LCV or LGZ) |
| DTC P00B7 | Engine Coolant Flow Insufficient |
| DTC P0480, P0691, or P0692 | Cooling Fan Speed (LWN Diesel) |
| DTC P0480, P0691, or P0692 | Cooling Fan Speed (Gas Engine) |
| DTC P0483 or P0493 | Cooling Fan System Performance (LWN Diesel) |
| DTC P0495 | Cooling Fan Speed Too High (LWN Diesel) |
| DTC P0526 | Cooling Fan Speed Sensor Circuit (LWN) |
| DTC P0597-P0599 | Engine Coolant Thermostat (LCV or LGZ) |
| DTC P112F | Radiator Coolant Temperature Sensor Not Plausible (LCV or LGZ) |
| DTC P1258 | Engine Coolant Overtemperature - Protection Mode Active |