Nissan Frontier D22. Instruction — part 321
DTC P0500 VSS
EC-387
[KA24DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
DTC P0500 VSS
PFP:32702
Component Description
UBS00D8Q
The vehicle speed sensor is installed in the transmission. It contains
a pulse generator which provides a vehicle speed signal to the
speedometer. The speedometer then sends a signal to the ECM.
On Board Diagnosis Logic
UBS00D8R
DTC Confirmation Procedure
UBS00D8S
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:
This procedure 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.
WITH CONSULT-II
1.
Start engine
2.
Read vehicle speed sensor signal in “DATA MONITOR” mode
with CONSULT-II. The vehicle speed on CONSULT-II should
exceed 10 km/h (6 MPH) when rotating wheels with suitable
gear position.
3.
If NG, go to
.
If OK, go to following step.
4.
Select “DATA MONITOR” mode with CONSULT-II.
5.
Warm engine up to normal operating temperature.
6.
Maintain the following conditions for at least 1 minute.
7.
If 1st trip DTC is detected, go to
.
Overall Function Check
UBS00D8T
Use this procedure to check the overall function of the EVAP canister vent control valve circuit. During this
check, a 1st trip DTC might not be confirmed.
SEF505U
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0500
Vehicle speed sensor
The almost 0 km/h (0 MPH) signal from
vehicle speed sensor is sent to ECM
even when vehicle is being driven.
●
Harness or connectors
(The vehicle speed sensor circuit is open or
shorted)
●
Vehicle speed sensor
ENG SPEED
1,800 - 6,000 rpm (M/T)
1,600 - 6,000 rpm (A/T)
COOLAN TEMP/S
More than 70
°C (158°F)
B/FUEL SCHDL
7 - 15 msec (M/T)
6 - 16 msec (A/T)
Selector lever
Suitable position
PW/ST SIGNAL
OFF
SEF196Y
EC-388
[KA24DE]
DTC P0500 VSS
WITH GST
1.
Lift up drive wheels.
2.
Start engine.
3.
Read vehicle speed sensor signal in “MODE 1” with GST.
The vehicle speed sensor on GST should be able to exceed 10
km/h (6 MPH) when rotating wheels with suitable gear position.
4.
If NG, go to
.
SEF568P
DTC P0500 VSS
EC-389
[KA24DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
Wiring Diagram
UBS00D8U
BBWA0448E
EC-390
[KA24DE]
DTC P0500 VSS
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 ECM's transistor. Use a ground other than ECM terminals, such as the ground.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
Diagnostic Procedure
UBS00D8V
1.
CHECK INPUT SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector and combination meter harness connector M38.
3.
Check harness continuity between ECM terminal 29 and meter terminal 2.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 3.
NG
>> GO TO 2.
2.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors M59, F27
●
Harness for open or short between ECM and combination meter
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK SPEEDOMETER FUNCTION
Make sure that speedometer functions properly.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E43, M65
●
Harness connectors E32, E202
●
Harness for open or short between combination meter and vehicle speed sensor
>> Repair harness or connectors. Check vehicle speed sensor and its circuit. Refer to
"INSPECTION/VEHICLE SPEED SENSOR"
.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
29
G/B
Vehicle speed sensor
[Engine is running]
●
Lift up the vehicle
●
Shift lever: D (A/T), 2nd (M/T)
●
Vehicle speed: 40 km/h (25 MPH)
1 - 4V
SEF003W
Continuity should exist.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст