[FrenchMike]

Hi guys,

My diagnostics are always on going:

WEBASTO FBH DIAGNOSTICS update

-Engine cold and stopped

-At first, unplug then replug the power connector (or fuse F8) in order to reset the system.
-Connect permanently Pin 3 to earth. (To + batt in case of older model)
Simultaneously start a TIMER and listen when the fan stops

IF stop after 3 sec, restart 4 seconds later and finally stop at 2 minutes 7 sec;
An error is generated; may be caused by:

-Battery voltage lower than 10 volts
-Glow plug open or short circuit
-Circulation pump open or short circuit
-Fuel pomp open
-PCB defective (send me a PM)

IF a weird turbine noise appears at a door opening e.g.,PCB likely faulty.

IF stop after more than 2 minutes 10 sec, then
PCB and all devices are good (except doubtful glow plug)

IF stop at 4 minutes 5 sec, Glow plug resistor too high (0,6 ohms for instance),

IF stop at 4 minutes 40 sec it is a ignition fault, (fuel pump priming fault e.g.)

Mike