Nissan X-Trail 32. Manual — part 902
P1715 INPUT SPEED SENSOR
EC-737
< DTC/CIRCUIT DIAGNOSIS >
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P1715 INPUT SPEED SENSOR
Description
INFOID:0000000010986444
ECM receives input speed sensor signal from TCM through CAN communication line. ECM uses this signal for
engine control.
DTC Description
INFOID:0000000010986445
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors (The CAN communication line is open or shorted.)
• Harness or connectors (Input speed sensor circuit is open or shorted.)
• TCM
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.
CHECK DTC PRIORITY
If DTC P1715 is displayed with DTC UXXXX, P0335, P0340, P0603, P0604, P0605, P606, P0607, P060A, or
P060B, first perform the trouble diagnosis for DTC UXXXX, P0335, P0340, P0603, P0604, P0605, P606,
P0607, P060A, or P060B.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
NO
>> GO TO 2.
2.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing 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 3.
3.
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
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010986446
1.
CHECK DTC PRIORITY
If DTC P1715 is displayed with DTC UXXXX, P0335, P0340, P0603, P0604, P0605, P606, P0607, P060A, or
P060B, first perform the trouble diagnosis for DTC UXXXX, P0335, P0340, P0603, P0604, P0605, P606,
P0607, P060A, or P060B.
Is applicable DTC detected?
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P1715
IN PULY SPEED
(IN PULY SPEED)
Input speed sensor signal is different from the theoretical value calculated
by ECM from output speed sensor signal and engine rpm signal.
EC-738
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
P1715 INPUT SPEED SENSOR
YES
>> Perform diagnosis of applicable. Refer to
NO
>> GO TO 2.
2.
CHECK DTC WITH TCM
Check DTC with TCM. Refer to
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Perform trouble shooting relevant to DTC indicated.
3.
REPLACE TCM
Replace TCM. Refer to
TM-415, "Removal and Installation"
>> INSPECTION END
P1805 BRAKE SWITCH
EC-739
< DTC/CIRCUIT DIAGNOSIS >
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P1805 BRAKE SWITCH
DTC Description
INFOID:0000000010986447
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors (Stop lamp switch circuit is open or shorted.)
• Stop lamp switch
FAIL-SAFE
ECM controls the electric throttle control actuator by regulating the throttle opening to a small range. There-
fore, acceleration will be poor.
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
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010986448
1.
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 2.
NO
>> Perform the trouble diagnosis for power supply circuit.
2.
CHECK STOP LAMP SWITCH GROUND CIRCUIT
1.
Disconnect ECM harness connector.
2.
Check the continuity between stop lamp switch harness connector and ECM harness connector.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P1805
BRAKE SW/CIRCUIT
(BRAKE SW/CIRCUIT)
A stop lamp switch signal is not sent to ECM for extremely long time while
the vehicle is driving.
Vehicle condition
Driving condition
When engine is idling
Normal
When accelerating
Poor acceleration
+
−
Voltage
Stop lamp switch
Connector
Terminal
E115
1
Ground
Battery voltage
EC-740
< DTC/CIRCUIT DIAGNOSIS >
[QR25DE]
P1805 BRAKE SWITCH
3.
Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK STOP LAMP SWITCH
Check the stop lamp switch. Refer to
EC-733, "Component Inspection (Stop Lamp Switch)"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-44, "Intermittent Incident"
.
NO
>> Replace stop lamp switch. Refer to
.
Component Inspection (Stop Lamp Switch)
INFOID:0000000010986449
1.
CHECK STOP LAMP SWITCH-1
1.
Turn ignition switch OFF.
2.
Disconnect stop lamp switch harness connector.
3.
Check the continuity between stop lamp switch terminals as per the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
CHECK STOP LAMP SWITCH-2
1.
Adjust stop lamp switch installation. Refer to
BR-22, "Inspection and Adjustment"
2.
Check the continuity between stop lamp switch terminals as per the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace stop lamp switch. Refer to
.
+
−
Continuity
Stop lamp switch
ECM
Connector
Terminal
Connector
Terminal
E115
2
E60
115
Existed
Stop lamp switch
Condition
Continuity
+
−
Terminals
1
2
Brake pedal
Fully released
Not existed
Slightly de-
pressed
Existed
Stop lamp switch
Condition
Continuity
+
−
Terminals
1
2
Brake pedal
Fully released
Not existed
Slightly de-
pressed
Existed
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