3315447 - 5020MB Check operation of pump dispensing/delivering fuel to supplementary stand-alone heater
Connect the Examiner/SDC diagnostic instrument to
the diagnostic socket.Check that the resistance of the winding
on the fuel metering/delivery pump to the additional heater is about
10 ohm.Check with the engine running and the heater
on, that the output signal from pin 6 control unit is between the
maximum and minimum limits of 3.8 V and 0.9 V.Check that the pump's connection to earth
is not broken.