Toyota ZZT230 series, Руководство по ремонту

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Dl-238
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CIRCUIT INSPECTION
DTC P0500 Vehicle Speed Sensor Malfunction
CIRCUIT DESCRIPTION
The vehicle speed sensor outputs a 4-pulse signal for every revolution of the transaxle output shaft.
After this signal is converted into a more precise rectangular wave form by the wave form shaping circuit
inside the combination meter, it Is then transmitted to
t
h
e ECM.
Vehicle
Speed Sensor
4-Pulse
4-Pulse
Combination Meter
ECM
Transaxle
DTC No.
DTC
Detecting Condition Trouble Area
WhEtfl
all of
the
following
conditions continues
lor
1 sec.
or
more:
1 .
Mer
the
ignition
switch
is turned o
n
,
0.5
second or more
......
.
2. Counter gear rpm
is
equal to or
greater
then
vehiCle speed.
•Combination meter
3.
Vehicle
speed sensor
signal can not be Input
to
the ECM.
4. The concillon that
engine coolant temp.
Is 20 ·cor
more
•Open or short
in
vehicle
speed
sensor Circuit
P0500
(no error in engine
ooolan!
temp. sensor circuit
Is
detected) • Vehicle speed sensor
and the
parklneutral position
switch
Is set
to P
or N
oontln-
•ECM
ues
tot 2 for.
or
more,
or the
condition that engine coolant
•Automatic transaxle (clutch, brake or gear etc,)
temp.
6s less
than 20 •c
{811 error
In
engine coolant temp.
sensor
circuit
is detected)
and the paN
neutral
position
switch Is set
toP
or
N
continues lor
3{1
sec.
or more.
Clutch
or brake
or
i
s broken
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