Nissan Sentra. Manual — part 427
EC-404
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
P1652 STARTER MOTOR SYSTEM COMM
P1652 STARTER MOTOR SYSTEM COMM
Description
INFOID:0000000009758659
ECM controls ON/OFF state of the starter relay, according to the engine and vehicle condition. ECM transmits
a control signal to IPDM E/R via BCM by CAN communication.
Under normal conditions, ECM controls and maintains the starter relay in OFF state during following condition:
• Engine is running.
• Selector lever is D position. (CVT models)
• Clutch pedal is fully released. (M/T models)
When detecting a decrease in engine speed due to rapid deceleration or heavy load condition, ECM controls
and reactivates the starter relay.
IPDM E/R detects a control state of starter relay and starter control relay and transmits a feedback signal to
ECM via CAN communication.
DTC Logic
INFOID:0000000009758660
DTC DETECTION LOGIC
NOTE:
• If DTC P1652 is displayed with DTC U1001, perform the trouble diagnosis for DTC U1001. Refer to
.
• If DTC P1652 is displayed with DTC P0607, perform the trouble diagnosis for DTC P0607. Refer to
.
• If DTC P1652 is displayed with B209F or B20A0 of IPDM E/R, perform the trouble diagnosis for B209F or
.
• If DTC P1652 is displayed with B26F9 or B26FA of BCM, perform the trouble diagnosis for B26F9 or B26FA.
.
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 FOR MALFUNCTION
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Start the engine and wait at least 5 minutes.
3. Repeat step 1 and 2 for 20 times.
4. Check DTC.
Is DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009758661
1.
CHECK SELF-DIAGNOSTIC RESULT IN BCM
With CONSULT
Check self-diagnostic result in BCM.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1652
STR MTR SYS COMM
(Starter motor system com-
munication)
ECM detects malfunction in starter motor
drive circuit of the IPDM E/R.
IPDM E/R
P1652 STARTER MOTOR SYSTEM COMM
EC-405
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
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Are any DTC detected?
YES
>> Check the DTC. Refer to
(with intelligent key),
(without intelligent key).
NO
>> GO TO 2.
2.
CHECK SELF-DIAGNOSTIC RESULT IN IPDM E/R
With CONSULT
Check self-diagnostic result in IPDM E/R.
Are any DTC detected?
YES
>> Check the DTC. Refer to
(with intelligent key),
(with-
out intelligent key).
NO
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE
1. Erase DTC.
2. Perform DTC confirmation procedure again. Refer to
.
3. Check DTC.
Is the P1652 displayed again?
YES
>> GO TO 4.
NO
>> INSPECTION END
4.
CHECK INTERMITTENT INCIDENT
Check intermittent incident. Refer to
GI-39, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-58, "Removal and Installation"
.
NG
>> Repair or replace error-detected parts.
EC-406
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
P1715 INPUT SPEED SENSOR
P1715 INPUT SPEED SENSOR
Description
INFOID:0000000009758662
ECM receives input speed sensor signal from TCM through CAN communication line. ECM uses this signal for
engine control.
DTC Logic
INFOID:0000000009758663
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 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 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
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009758664
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.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
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 en-
gine rpm signal.
• Harness or connectors
(The CAN communication line is open or
shorted)
• Harness or connectors
(Input speed sensor circuit is open or
shorted)
• TCM
P1715 INPUT SPEED SENSOR
EC-407
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
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2.
REPLACE TCM
Replace TCM. Refer to
TM-263, "Removal and Installation"
>> INSPECTION END
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