Case IH 2630 (6157.12) - DEC – Engine ECU: Charge Air Cooler Outlet Temperature (CACOT)

Indicates an issue with the Charge Air Cooler Outlet Temperature. FMI 3 or 4 indicate electrical issues (voltage out of range high/low, open/short circuit), while FMI 15 or 16 indicate the air cooler is plugged or radiator needs to be cleaned.

• MAXXUM T4E
• Steiger
• Magnum
• Puma

1. 1

   Check the Charge Air Cooler Outlet Temperature Sensor (often designated as B5205 or B32) for physical damage.

2. 2

   Inspect the wiring harness connected to the sensor for an open circuit (signal or ground) or a short to ground.

3. 3

   Visually inspect the engine radiator and charge air cooler for blockages, dirt, or debris that would restrict airflow and cause undercooling/overheating.

1. 1

   Clean radiator and charge air cooler

   If the fault is 2630 15 or 2630 16, thoroughly clean the radiator and charge air cooler to remove any plugging.

2. 2

   Repair or replace wiring harness

   If the fault is electrical (2630 3 or 2630 4), repair or replace the damaged wiring harness.

3. 3

   Replace sensor

   If the wiring is intact but the voltage remains out of range, replace the Charge Air Cooler Outlet Temperature Sensor.