Infiniti QX4 (R50). Manual - part 50
Description
NBAT0071
The vehicle speed sensor·MTR is built into the speedometer
assembly. The sensor functions as an auxiliary device to the revo-
lution sensor when it is malfunctioning. The TCM will then use a
signal sent from the vehicle speed sensor·MTR.
TCM TERMINALS AND REFERENCE VALUE
NBAT0071S02
Remarks: Specification data are reference values.
Terminal
No.
Wire color
Item
Condition
Judgement
standard
(Approx.)
40
W/L
Vehicle speed
sensor
When moving vehicle at 2 to 3 km/h (1 to 2
MPH) for 1 m (3 ft) or more.
Voltage varies
between less
than 1V and
more than
4.5V
ON BOARD DIAGNOSIS LOGIC
NBAT0071S03
Diagnostic trouble code
Malfunction is detected when ...
Check item (Possible cause)
: VHCL SPEED SEN·MTR
TCM does not receive the proper voltage
signal from the sensor.
I
Harness or connectors
(The sensor circuit is open or shorted.)
I
Vehicle speed sensor
: 2nd judgement flicker
SAT014K
SAT971J
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION
PROCEDURE
NBAT0071S01
CAUTION:
I
Always drive vehicle at a safe speed.
I
If conducting this “DTC CONFIRMATION PROCEDURE”
again, always turn ignition switch “OFF” and wait at least
5 seconds before continuing.
After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-II
1)
Turn ignition switch “ON” and select “DATA MONITOR” mode
for “A/T” with CONSULT-II.
2)
Start engine and accelerate vehicle from 0 to 25 km/h (0 to 6
MPH).
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC VEHICLE SPEED SENSOR·MTR
Description
AT-197