Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information FSM-U002855

Condition
The control modules in the vehicle send and receive information continuously on the vehicle's controller area network (CAN).
The Supplemental restraint system module (SRS) is the main system in a local network, sensor-CAN, that both transmits and receives information via a standardized serial communication protocol - CAN (Controller Area Network). The local network can have several different control modules connected (market dependent).
The diagnostic trouble code (DTC) is stored if the control module detects that:
- The signal configuration ID in the Forward Sensing Module (FSM) differs from the signal configuration ID that the Supplemental restraint system module (SRS) transmits.

Note! This fault code is set regardless of on which network the problem is located.

The control module's test for the diagnostic trouble code (DTC) starts in the event of:
- Ignition on.
- Control module supplied with power.

Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.





Substitute value
- None.

Possible source
- Incorrect configuration ID (the control module is not intended for this vehicle, for example it is a used control module with different software/hardware).
- Open-circuit on the CAN wiring, for sensor CAN, between the control module and Supplemental restraint system module (SRS).

Fault symptom[s]
- Cruise control/Does not engage
- Front monitoring/Active safety/Driver Alert Control does not work
- Front monitoring/Active safety/Lane Departure Warning does not work
- Warning lights and chimes/Front monitoring/Active safety indication/no indication
- Warning lights and chimes/Bulb failure indication/no indication
- Text window and warning symbol/Text message