Passenger fire alarm activated by a CAN-input.
- Check carefully for genuine fire in the passenger area of the vehicle Otherwise, in general this issue should be referred to the body supplier. The following actions may also be relevant if sufficient information on the body systems is available to diagnose further; - Check the fuse for the fire alarm circuit and reset or replace if necessary - Check the integrity of the fire alarm sensor - Check the connection of the fire alarm sensor to the harness - Check the integrity of the harness between the sensor and the body system - Check the integrity of the body system itself
What you'll see
No driver-visible symptom recorded.
System reaction
The fire alarm is issued in the Instrument CLuster
Diagnostic depth
The Passenger Fire Alarm has been activated through CAN.
- Fire - in the event of a real fire, the sensor will be destroyed and a genuine fire event will occur In this case the sensor is triggered by the body system. If necessary documentation from the vehicle body should be used to further identify and confirm the cause . However, the following causes are suggested as likely; - Broken/tripped fuse for the fire alarm circuit - Broken sensor input - the sensor may become damaged, for example during maintenance work in the vehicle - Disconnected sensor input - if the sensor is not connected, the default behaviour may be for the alarm to be issued