User Manual - Page 1023

For 2001 XTERRA.

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AEC110
Component Description
NGEC0768
The vehicle speed sensor is installed in the transaxle. It contains a
pulse generator which provides a vehicle speed signal to the
speedometer. The speedometer then sends a signal to the ECM.
ECM Terminals and Reference Value
NGEC0769
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECMs transistor. Use a ground other than the ECM terminals, such as the ground.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM CONDITION DATA (DC Voltage)
29 G/B Vehicle speed sensor
[Engine is running]
Lift up the vehicle
In 1st gear position
Vehicle speed is 40 km/h (25 MPH)
2-3V
SEF996U
On Board Diagnosis Logic
NGEC0770
Malfunction is detected when the almost 0 km/h (0 MPH) signal
from vehicle speed sensor is sent to ECM even when vehicle is
being driven.
POSSIBLE CAUSE
NGEC0770S01
Harness or connector
(The vehicle speed sensor circuit is open or shorted.)
Vehicle speed sensor
DTC Confirmation Procedure
NGEC0771
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted,
always turn ignition switch OFF and wait at least 5 seconds before
conducting the next test.
TESTING CONDITION:
Steps 1 and 2 may be conducted with the drive wheels lifted
in the shop or by driving the vehicle. If a road test is expected
to be easier, it is unnecessary to lift the vehicle.
DTC P0500 VEHICLE SPEED SENSOR (VSS)
VG33E
Component Description
EC-1023
GI
MA
EM
LC
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
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