Defi -Link Advance Operation Manual page 78

Condition
○ The RPM is not
displayed correctly.
○ This tachometer
is reading slightly
lower than the
original tachometer.
○ Serial line error is
displayed.
○ Serial line errors are
displayed on all the
connected gauges.
Possible Cause
○ Wiring of the tachometer signal
is wrong.
○ Setting of the number of cylin-
ders is wrong.
○ Generally tachometer readings
are about up to 10 %higher
than actual RPM.
○ Communication error is oc-
curred between gauges/ZDs
and the control unit.
○ More than one pressure
sensors(turbo, oil pressure, and
fuel pressure) short-circuit.
○ Check wiring as per instruc-
○ Follow tachometer op-
○ Check the number of cylin-
○ Check if the difference is
○ Check the meter wire as per
○ In case that the sensor
77
Corrective Action
tions in this manual.
eration manual and wiring
instruction for Speed &
Tachometer signal wire to
confirm the wiring.
ders as per instructions in
this manual.
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.
instructions in this manual.
If any defects are not found,
please ask the shop for
inspection.
is broken, it need to be
changed. please ask the
shop for inspection.