Nissan Cube. Instruction — part 369
EC-362
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
P1574 ASCD VEHICLE SPEED SENSOR
2.
CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”
Is DTC detected?
NO
>> INSPECTION END
YES
>> Perform trouble shooting relevant to DTC indicated.
P1715 INPUT SPEED SENSOR
EC-363
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
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P1715 INPUT SPEED SENSOR
Description
INFOID:0000000009947489
ECM receives input shaft revolution signal from TCM via the CAN communication line. ECM uses this signal
for engine control.
DTC Logic
INFOID:0000000009947490
DTC DETECTION LOGIC
NOTE:
• If DTC P1715 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
• If DTC P1715 is displayed with DTC P0335, first perform the trouble diagnosis for DTC P0335. Refer
.
• If DTC P1715 is displayed with DTC P0340, first perform the trouble diagnosis for DTC P0340. Refer
.
• If DTC P1715 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer
.
• If DTC P1715 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 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 and drive the vehicle at more than 50 km/h (31 MPH) for at least 5 seconds.
CAUTION:
Always drive vehicle at a safe speed.
2.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009947491
1.
CHECK DTC WITH TCM
Check DTC with TCM. Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Perform trouble shooting relevant to DTC indicated.
2.
REPLACE TCM
Replace TCM. Refer to
TM-235, "Removal and Installation"
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1715
Input speed sensor
(TCM output)
Input shaft revolution signal is different
from the theoretical value calculated by
ECM from output shaft revolution signal
and engine rpm signal.
• Harness or connectors
(The CAN communication line is open or short-
ed)
• Harness or connectors
(Primary speed sensor circuit is open or short-
ed)
• TCM
EC-364
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
P1715 INPUT SPEED SENSOR
>> INSPECTION END
P1805 BRAKE SWITCH
EC-365
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
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P1805 BRAKE SWITCH
Description
INFOID:0000000009947492
Brake switch signal is applied to the ECM through the stop lamp switch when the brake pedal is depressed.
This signal is used mainly to decrease the engine speed when the vehicle is driving.
DTC Logic
INFOID:0000000009947493
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON.
2.
Fully depress the brake pedal for at least 5 seconds.
3.
Erase the DTC.
4.
Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009947494
1.
CHECK STOP LAMP SWITCH CIRCUIT
1.
Turn ignition switch OFF.
2.
Check the stop lamp when depressing and releasing the brake pedal.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 2.
2.
CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect stop lamp switch harness connector.
3.
Check the voltage between stop lamp switch harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1805
Brake switch
A brake switch signal is not sent to ECM
for extremely long time while the vehicle is
driving.
• Harness or connectors
(Stop lamp switch circuit is open or shorted.)
• Stop lamp switch
Brake pedal
Stop lamp
Fully released
Not illuminated
Slightly de-
pressed
Illuminated
Stop lamp switch
Ground
Voltage
Connector
Terminal
E114 (M/T)
E115 (CVT)
1
Ground
Battery voltage
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