Circuit Inspection - Toyota ZZT230 series Repair Manual

CIRCUIT INSPECTION

DTC
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 the
Vehicle
Speed Sensor
)
DTC No.
When
more:
1 . After the ignition switch Is turned on,
2. Counter gear
3.
.... ..
4.
Clutch or brake slips or gear is broken
)
P0500
Vehicle Speed Sensor Malfunction
4-
l
P e
u s
JUUlJl
Transaxle
DTC Detecting Condtion
all ol the following concfrttons continues lor
...... .
rpm
.
Is equal to or greater then vehicle speed.
Vehicle speed sensor
signal can not
Therondillo n that engine coolant temp.
ues
parklneutral
the
(no
error in &nglne coolan t temp. sensor circuit
and
posilion switch
than
for 2 1or. or more, or the condition that engine coolant
sensor and
temp. is less 20 ·c {an error in engine coo l ant temp.
circuit is detect&d) the parkr'neulral position
is set t o P or N continues lor 30 sec. or more.
switch
-
DIAGNOSTICS
AUTOMATIC TRANSAXLE {U240E)
ECM.
Meter
Combination
.
1 sec cr
second
0.5
or more
• Combination meter
be
input to !he ECM.
• Open or short in vehicle speed sensor circuit
Is
Is 20
'C or more
• VehiCle speed sensor
detect&d)
• ECM
N
is set
toP or contin-
•Automatic transaxle (clutch, brake or gear etc,)
4-Pulse
JUlJlJL
ECM
Trouble Area
01-175
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