Auto Meter 6002 User Manual
Page 52

Chapter 6. Troubleshooting
46
Street Dash Users Guide
No. Symptom Possible
Cause Remedy
Notes
Incorrect wiring
Reconnect the
tachometer as
specified in this
manual
22 Tachometer
reading erratic,
pointer jumps high
or low
Signal from ignition
system or coil is
noisy
Condition the ES
signal by placing a
resistor in line with
the ES wire
Resistor
values: 10K
ohms for
dedicated
tach output;
47K Ohms
for coil
connection
(Non-CDI);
100K Ohms
for coil
connection
(CDI).
Resistors
1/2W 5%
350v
23 Displayed
speed
value too high or
too low by a
constant %-age
amount.
System configured
with wrong number
of targets per wheel
revolution
Reconfigure the
system with correct
values
System
configured
with wrong
circumference.
Faulty sensor
and/or wiring
Check sensor
indicator for correct
operation
Rotate the
wheel by
hand and
check that
the sensor
indicator
lights up as
each target
passes the
sensor
24
No speed reading
Speed reading
erratic, value jumps
high or low
1. Pulse
amplifier not
connected
2. Pulse
amplifier out
of adjustment
Rotate wheels and
check the LED on
theVSS Pulse
Amplifier for pulse
signals