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

to 

EC-798, "DTC Logic"

.

• If DTC P1574 is displayed with DTC P0500, first perform the trouble diagnosis for DTC P0500. Refer

to 

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

to 

EC-1052, "DTC Logic"

• If DTC P1574 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer

to 

EC-1054, "DTC 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.

>> 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 

TM-397, "CONSULT Function"

.

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 

BRC-39, "CONSULT Function"

.

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 

EC-763, "Description"

.

>> 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 

EC-763, "Description"

.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

Perform DTC Confirmation Procedure. Refer to 

EC-1116, "DTC Logic"

.

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