Diagnostic Trouble Codes Group 30: Electrical system
44
Fault tracing
FMI 0 Water in fuel
Conditions for fault code:
Water in the fuel trap has been detected.
Suitable action:
1. Empty the water trap.
2. Check function of water in fuel monitor.
FMI 3
Conditions for fault code:
The voltage signal on B8 is too high.
Possible reason:
• The cable connected to B8 is short circuited to
battery voltage.
Suitable action:
1. Check cable harness and connectors between wa-
ter in fuel monitor and EMS 2.
FMI 4
Conditions for fault code:
The voltage signal on B8 is too low.
Possible reason:
• Short circuit between both cables to the water in
fuel monitor.
• The cable connected to B8 is short circuited to
battery negative.
Suitable action:
1. Check cable harness and connectors between wa-
ter in fuel monitor and EMS 2.
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