Defi ADVANCE Control Unit (DF07703 Manufactured in and before January, 2012) User Manual
Page 38
Condition
Possible Cause
Corrective Action
○ The RPM is not
displayed correctly.
○ Wiring of the tachometer signal
is wrong.
○ Setting of the number of cylin-
ders is wrong.
○ Check wiring as per instruc-
tions in this manual.
○ Follow tachometer op-
eration manual and wiring
instruction for Speed &
Tachometer signal wire to
confirm the wiring.
○ Check the number of cylin-
ders as per instructions in
this manual.
○ This tachometer
is reading slightly
lower than the
original tachometer.
○ Generally tachometer readings
are about up to 10 % higher
than actual RPM.
○ Check if the difference is
up to 10% . This product is
designed for high accuracy
and should have little error
margin. If the difference
is much more than 10% ,
check setting of the number
of cylinders.
○ Serial line error is
displayed.
○ Communication error is oc-
curred between gauges/ZDs
and the control unit.
○ Check the meter wire as per
instructions in this manual.
If any defects are not found,
please ask the shop for
inspection.
○ Serial line errors are
displayed on all the
connected gauges.
○ More than one pressure
sensors(turbo, oil pressure, and
fuel pressure) short-circuit.
○ In case that the sensor
is broken, it need to be
changed. please ask the
shop for inspection.
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