2.2.48. SPN 132, FMI 19, Air mass sensor: CAN communication timeout.ΒΆ

Description

The air mass sensor is not active in the CAN bus.

Possible causes are:

  • The sensor wiring contact is loose.
  • The sensor wiring is defective.
  • The sensor is defective.

Reaction in EEM

The FC is stored and the warning lamp is activated. The CAN message indicates an active fault.

Solution

First save the error log and then do the procedure that follows:

  • Check the air mass sensor wiring, the connectors and the contact surfaces of the connector pins (possible oxidation).
  • Check the operation with another air mass sensor to see if the sensor is defective.

See Airmass for reference.