Iveco 2.2 – Engine Control Unit (ECU) / EDC: Air temperature sensor

The air temperature sensor signal is missing, short-circuited, or providing an implausible value to the system.

• Iveco Daily
• Iveco Trakker
• Iveco Stralis
• Iveco / FPT Industrial and Marine engines

1. 1

   Inspect the wiring harness and connectors leading to the intake/supercharging air temperature sensor for broken wires, corrosion, or loose connections.

2. 2

   Test the sensor's resistance and voltage supply using a multimeter to verify if the sensor is functioning within its specified range or if it has failed completely.

3. 3

   Check for other related fault codes (such as atmospheric pressure or MAF sensor faults) that could indicate a broader wiring harness issue.

1. 1

   Locate the Sensor

   Identify the intake air temperature sensor on the intake manifold or charge air piping.

2. 2

   Disconnect the Battery

   Disconnect the negative battery terminal to prevent electrical spikes.

3. 3

   Remove the Sensor

   Unplug the electrical connector from the sensor. Use the appropriate wrench or socket to unthread and remove the faulty sensor from the intake.

4. 4

   Install the New Sensor

   Thread the new OEM sensor into place and tighten it to the manufacturer's torque specification. Reconnect the electrical harness.

5. 5

   Clear the Fault Memory

   Clear the code using a diagnostic scanner, or manually via the Iveco blink code procedure: With the key turned OFF, press and hold the diagnosis button. While keeping the button pressed, turn the ignition key ON. Keep the button pressed for 5 seconds. Let go of the button, then turn the key OFF.

6. 6

   Test Drive

   Start the engine and perform a test drive to ensure the EDC warning light remains off and the engine operates without power reduction.