Toyota ZZT230 series, Repair Manual

Page: 724 / 821

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01-513
DIAGNOSTICS
CRUISE CONTROL SYSTEM
INSPECTION PROCEDURE
1
Check voltage
between termlnai iDL of cruise control ECU connector and body
ground.
er
PREPARATION:
(a)
Remove
the
ECU
with connector still connected.
(b) Disconnect the ECM
connector.
(c)
Turn
i
gni
t
i
o
n
switch
ON.
CHECK:
Measure voltage between
terminai iDL of
ECU
connector and
body ground when the
throttle valve is fully closed and fully
opened.
OK:
Throttle valve position
Voltage
(+)
Fully opened 1 0 - 1 4
v
''""
closed
Betow 2 V
""'u
100112
Pr
ocee
d
to next circuit inspection shown
problem symptom table
(See
page Dl-494).
2
Check harness
and
connector
between ECM and throttle position sensor (See
page IN-30).
G
Repair or
replace harness or connector.
3
Check throttle position sensor circuit
(See page Dl-38).
G
Replace throttle position sensor.
In