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ACM Ch.-61034049 / B3857 00

Read the instructions below then start the fault diagnostic procedure.

Symptom: Airbag warning lamp is lit

  B3857 00


Driver Side Airbag Sensor, incorrect Side Airbag Sensor installed.

Fault symptom

Airbag warning lamp is lit

On-board diagnosis

Type of diagnosis:

Continuous

Enable criteria:

Ignition ON.

Fault criteria:

Control module receives incorrect ID from the sensor.

System reaction to a fault:

The airbag system should be considered non-operational. There may, however, be some functionality.
The control module ignores the activation command from the sensor as long as a fault is active.

Fault handling:


Check the sensor part number.

Diagnostic help

IMPORTANT

Read "Before starting fault diagnosis" under Fault diagnosis, general before beginning fault diagnosis.