NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If any battery voltage codes present, first those first. If code 625-9 active, fix that before proceeding as well. PROBABLE CAUSES:1. CPC recently programmed incorrectly.2. Another computer on the truck is the cause of the problems (ABS, Transmission, etc…)

POSSIBLE CAUSES:1. Low vehicle speed with high engine load (steep grade climb).2. Fan operation.3. Winter front in high ambient temperatures. NOTE: If any battery voltage codes present, first those first. If code 625-9 active, fix that before proceeding as well. PROBABLE CAUSES:1. CPC recently programmed incorrectly.2. Another computer on the truck is the cause of the problems (ABS, transmission, etc…)

DESCRIPTION:Engine Air Temperature – Plausibility fault out of range (High Box). MONITORED PARAMETER:Intake manifold and charge air cooler outlet temperature. TYPICAL ENABLING CONDITIONS:1. Engine speed 1100 to 1600 rpm.2. Torque 500 to 1200 nm.3. EGR mass flow greater than .1 kg/s.4. Coolant temperature greater than 70°C.5. Ambient temperature greater than -8°C (17.6 °F).6. Barometric pressure greater than 755 mbar. MONITOR SEQUENCE:None EXECUTION FREQUENCY:Always enabled TYPICAL DURATION:10 DASH LAMPS:1. MIL2. CEL ENGINE REACTION:Derate 25% VERIFICATION:Once engine is warmed up such that coolant temperature greater than 70°C (158°F) and ambient conditions are such that ambient temperature greater than -8°C (17.6°F) and barometric...

NOTE: If codes for EGR system active, fix those first. PROBABLE CAUSES:1. Air intake system failure (charge air cooler leaks, intake piping).2. Charge air outlet temperature sensor.3. Charge air outlet temperature sensor harness/connector.

NOTE: If codes for EGR system active, fix those first. PROBABLE CAUSES:1. Air intake system failure (charge air cooler leaks, intake piping).2. Charge air outlet temperature sensor.3. Charge air outlet temperature sensor harness/connector.