Detroit Diesel

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…) Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 4 (MCM) Intake Air Temperature Circuit Failed Low Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 3 (MCM) Charger Air Cooler Outlet Temperature Circuit Failed High Detroit DD13 EPA07 (2007-09)...

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. Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 16 (MCM) Motor Control Module has Detected Very High Charge Air and Intake Manifold Temperatures Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 4 (MCM) Intake Air Temperature Circuit Failed Low Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 3 (MCM) Charger Air Cooler Outlet Temperature Circuit Failed High Detroit DD13 EPA07 (2007-09) Fault Code: SPN...

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. Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 20 (MCM) Charge Air Outlet Temperature Drift (Low Box) Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 16 (MCM) Motor Control Module has Detected Very High Charge Air and Intake Manifold Temperatures Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 4 (MCM) Intake Air Temperature Circuit Failed Low Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630...

DESCRIPTION:Charge air cooler (CAC) short to voltage or open. MONITORED PARAMETER:CAC outlet temperature sensor. TYPICAL ENABLING CONDITIONS:Always enabled MONITOR SEQUENCE:None EXECUTION FREQUENCY:Always enabled TYPICAL DURATION:Two seconds DASH LAMPS:CEL ENGINE REACTION:None VERIFICATION:Engine Idle: One minute. PROBABLE CAUSES:1. Intake manifold air temperature sensor failure.2. Intake manifold air temperature sensor harness/connector. Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2630 FMI 2 (MCM) Engine Air Temperature Plausibility Fault Out of Range (High Box) Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2623 FMI 14 (CPC) 2 – Channel Accelerator Pedal GAS1 and GAS2 Signal Missing Detroit DD13 EPA07 (2007-09) Fault Code: SPN 2623 FMI 4...