Nissan Juke F15. Manual — part 575
P1574 ASCD VEHICLE SPEED SENSOR
EC-1113
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
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P1574 ASCD VEHICLE SPEED SENSOR
Description
INFOID:0000000012198636
The ECM receives two vehicle speed sensor signals via CAN communication line. One is sent from combina-
tion meter, and the other is from TCM (Transmission control module). The ECM uses these signals for ASCD
control. Refer to
EC-653, "AUTOMATIC SPEED CONTROL DEVICE (ASCD) : System Description"
for ASCD
functions.
DTC Logic
INFOID:0000000012198637
DTC DETECTION LOGIC
NOTE:
• If DTC P1574 is displayed with DTC U1001, first perform the trouble diagnosis for DTC U1001. Refer
.
• If DTC P1574 is displayed with DTC P0500, first perform the trouble diagnosis for DTC P0500. Refer
EC-1027, "EXCEPT FOR M/T MODELS : DTC Logic"
• If DTC P1574 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer
• If DTC P1574 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer
.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine.
2. Drive the vehicle at more than 40 km/h (25 MPH).
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
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.
3. Check DTC.
Is DTC detected?
YES
>> Proceed to
EC-1113, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000012198638
1.
CHECK DTC WITH TCM
Check DTC with TCM. Refer to
.
DTC No.
Trouble diagnosis
name
(Trouble diagnosis
content)
DTC detecting condition
Possible cause
P1574
ASCD VHL SPD SEN
(ASCD vehicle speed
sensor)
ECM detects a difference between two vehicle
speed signals is out of the specified range.
• Harness or connectors
(CAN communication line is open or shorted.)
• ABS actuator and electric unit (control unit)
• TCM
• ECM
EC-1114
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
P1574 ASCD VEHICLE SPEED SENSOR
Is DTC detected?
NO
>> GO TO 2.
YES
>> Perform trouble shooting relevant to DTC indicated.
2.
CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”
Check DTC with ABS actuator and electric unit (control unit). Refer to
Is DTC detected?
NO
>> INSPECTION END
YES
>> Perform trouble shooting relevant to DTC indicated.
P158A G SENSOR
EC-1115
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
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P158A G SENSOR
DTC Logic
INFOID:0000000012198639
*: Since this DTC is detected when G sensor calibration is incomplete, there is not replacement parts.
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Check DTC.
Is DTC detected?
YES
>> Proceed to
EC-1115, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000012198640
1.
PERFORM CALIBRATION OF G SENSOR
Perform calibration of G sensor. Refer to
.
>> INSPECTION END
DTC No.
Trouble diagnosis
(Trouble diagnosis content)
DTC detecting condition
Possible cause*
P158A
G SENSOR
(G sensor calibration is incom-
plete)
ECM detects a state that calibration of the G
sensor is incomplete.
G sensor calibration is incomplete
EC-1116
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
P159B G SENSOR
P159B G SENSOR
DTC Logic
INFOID:0000000012198641
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TEST CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine.
2. Drive the vehicle for at least 5 seconds at 35 km/h (22 MPH) or more.
3. Stop the vehicle and let it idle for at least 5 seconds.
NOTE:
• Depress the brake pedal to bring the vehicle to a full stop.
• Never depress the accelerator pedal while the vehicle is stopped.
4. Repeat Step 2 and Step 3 thirteen times.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
EC-1116, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000012198642
1.
PERFORM CALIBRATION OF G SENSOR
Perform calibration of G sensor. Refer to
.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC Confirmation Procedure. Refer to
.
Is 1st trip DTC detected?
YES
>> GO TO 3.
NO
>> INSPECTION END
3.
CHECK G SENSOR FITTING CONDITION
Check G sensor fitting condition.
Is the inspection result normal?
YES
>> GO TO 4.
DTC No.
Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P159B
G SENSOR
(G sensor circuit range/perfor-
mance)
Every time when the vehicle is stopped, ECM
detects the following status 13 times in a row:
A voltage signal transmitted from the G sen-
sor is less than 2.275V or more than 2.725 V
continuously for 5 seconds or more.
• Harness or connectors
(G sensor circuit is open or shorted.)
(Intake air temperature sensor 2 cir-
cuit is open or shorted.)
• G sensor
• Sensor power supply 2
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