2. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM" on
page
8-21.
Replace the ECU
or
meter assembly.
Refer to "REPLACING THE ECU (en-
gine control unit
)"
on page 8-
93
.
The speedometer fails to operat
e.
1.
Check the speed sensor.
Refer to "CHECKING THE SPEED
SENSOR" on page
8-105.
2. Check the entire signaling system's
wiring.
Refer to "CIRCU
IT
DIAGRAM" on
page
8-21.
Replace the ECU
or
meter assembly.
Refer to "REPLACING THE ECU (en-
gine control unit
)"
on page 8-
93
.
NG
-t
NG
-t
NG
-t
The coolant temperature warning light fails to come on.
1. Check the
coo
lant temperatu
re
sen-
sor.
Refer to "CHECKING THE COOL-
ANT
TEMPERATURE SENSOR"
on
page 8-106.
2. Check the entire signaling system's
wiring.
Refer to "CIRCUIT DIAGRAM"
on
page 8-21.
Replace the ECU
or
meter assembly.
Refer
to
"REPLACING THE ECU (en-
gine control unit
)"
on page 8-93.
NG
-t
NG
-t
8-26
SIGNALING SYSTEM
Properly conn
ec
t or repair the signaling
syst
em
's wi
ri
ng.
Replace the speed sensor.
Properly conn
ec
t or repair the signaling
syst
em
's wi
ri
ng.
Replace the coolant temperature sensor.
Properly conn
ec
t
or
repair the signaling
system's wi
ri
ng.
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