Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information FSM-U015100

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:
- Communication between the Forward Sensing Module (FSM) and the Supplemental restraint system module (SRS) has interference or is missing.

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:
- Control module supplied with power.
- Engine running.

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
- Open circuit or loose connection in at least one cable between the Supplemental restraint system module (SRS) and Forward Sensing Module (FSM).
- Short-circuiting to battery.
- Ground (GND) short
- Fault-trace in transmitting control module.

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