Nissan Juke Service and Repair Manual : P1574 ASCD vehicle speed sensor
Description
The ECM receives two vehicle speed sensor signals via CAN communication line. One is sent from combination meter, and the other is from TCM (Transmission control module). The ECM uses these signals for ASCD control. Refer to EC-477, "AUTOMATIC SPEED CONTROL DEVICE (ASCD) : System Description" for ASCD functions.
DTC Logic
DTC DETECTION LOGIC
NOTE
:
• If DTC P1574 is displayed with DTC U1001, first perform the trouble diagnosis
for DTC U1001. Refer
to EC-569, "DTC Logic".
• If DTC P1574 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer to EC-685, "DTC Logic".
• If DTC P1574 is displayed with DTC P0500, first perform the trouble diagnosis for DTC P0500. Refer to EC-672, "DTC Logic".
• If DTC P1574 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to EC-683, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine (ESP switch OFF).
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 >> Go to EC-723, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to TM-171, "DTC Index".
Is the inspection result normal
YES >> GO TO 2.
NO >> 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-142, "DTC Index".
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace.
3.CHECK DTC WITH COMBINATION METER
Check DTC with combination meter. Refer to MWI-36, "DTC Index".
>> INSPECTION END
P1572 ASCD brake switch
DTC Logic
DTC DETECTION LOGIC
NOTE:
• If DTC P1572 is displayed with DTC P0605, first perform the trouble diagnosis
for DTC P0605. Refer
to EC-683, "DTC Logic".
• This self-diagnosis ...
P1650 starter motor relay 2
Description
ECM controls ON/OFF state of the starter relay, according to the engine and
vehicle condition. Models with no
Intelligent Key System transmit a control signal directly to IPDM E/R. On ...
Other materials:
Additional service when replacing
ECM
Description
When replacing ECM, this procedure must be performed.
Work Procedure
1.PERFORM INITIALIZATION OF NATS SYSTEM AND REGISTRATION OF ALL NATS
IGNITION KEY IDS
Refer to SEC-50, "ECM : Work Procedure".
>> GO TO 2.
2.PERFORM ACCELERATOR PEDAL RELEASED POSITION LEARNIN ...
Component parts
Component Parts Location
1. Push-button ignition switch
2. Stop lamp switch
Refer to BRC-9, "Component Parts
Location" (without EPS), BRC-97,
"Component Parts Location" (with
EPS)
3. IPDM E/R
Refer to PCS-5, "Component Parts
Location"
4. Transmission range ...
P0746 pressure control solenoid A
DTC Logic
DTC DETECTION LOGIC
NOTE:
DC stands for "DRIVING CYCLE" and indicates a series of driving cycle of
"Ignition switch OFF → ON → driving
→ OFF".
DTC CONFIRMATION PROCEDURE
CAUTION:
Be careful of the driving speed.
1.PREPARATION BEFORE WORK
...