EC-360
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0850 PNP SWITCH
NO >> GO TO 2.
2.DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E7, M69 (M/T)
• Harness connectors E55, F55
• IPDM E/R harness connector E45 (CVT)
• 10 A fuse (No. 3) (M/T)
• 10 A fuse (No. 49) (CVT)
• Harness for open or short between transmission r ange switch (CVT) or PNP switch (M/T) and fuse
Is the inspection result normal?
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between transmission range sw itch (CVT) or PNP switch (M/T) harness connector
and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
4.CHECK TRANSMISSION RANGE SWIT CH (CVT) OR PNP SWITCH (M/T)
Refer to TM-148, "
Component Inspection (Transmission Range Switch)" (CVT) or TM-15, "PA R K / N E U T R A L
POSITION (PNP) SWITCH : Component Inspection" (M/T).
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace transmission range switch (CVT) or PNP switch (M/T). Refer t\
o TM-259, "
Removal and
Installation" (CVT) or TM-24, "Removal and Installation" (M/T).
5.CHECK INTERMITTENT INCIDENT
Refer to GI-42, "
Intermittent Incident".
>> INSPECTION END
Transmission range switch (CVT) / PNP switch (M/T) ECM
Continuity
Connector Terminal Connector Terminal
F52 (CVT) 10
F11 69 Existed
F24 (M/T) 3
Revision: August 2015 2016 Versa Note
cardiagn.com
P1553 BATTERY CURRENT SENSOREC-375
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P1553 BATTERY CURRENT SENSOR
DTC LogicINFOID:0000000012431583
DTC DETECTION LOGIC
NOTE:
If DTC P1553 is displayed with DTC P0643, first pe
rform the trouble diagnosis for DTC P0643. Refer to
EC-356, "
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8V at idle.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and wait at least 10 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-375, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431584
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground Inspection in GI-44, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK BATTERY CURRENT SENSOR POWER SUPPLY CIRCUIT
1. Disconnect battery current sensor harness connector.
2. Turn ignition switch ON.
3. Check the voltage between battery cu rrent sensor harness connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair open circuit or sort to ground or short to power in harness or connectors.
3.CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between battery current sensor harness connector and ECM harness connector.
DTC No. Trouble diagnosis content DTC detecting conditionPossible cause
P1553 Battery current sensor perfor-
mance The signal voltage transmitted from the
sensor to ECM is higher than the amount
of the maximum power generation. • Harness or connectors
(The sensor circuit is open or shorted.)
• Battery current sensor
Battery current sensor Ground Voltage
Connector Terminal
F9 1 Ground Approx. 5V
Revision: August 2015 2016 Versa Note
cardiagn.com
EC-388
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P1574 ASCD VEHICLE SPEED SENSOR
P1574 ASCD VEHICLE SPEED SENSOR
DescriptionINFOID:0000000012431597
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-45, "
AUTOMATIC SPEED CONTROL DEVICE (ASCD) : System Description" for ASCD
functions.
DTC LogicINFOID:0000000012431598
DTC DETECTION LOGIC
NOTE:
• If DTC P1574 is displayed with DTC U1001, first pe rform the trouble diagnosis for DTC U1001. Refer
to EC-164, "
DTC Logic".
• If DTC P1574 is displayed with DTC P0500, first perform the trouble diagno sis for DTC P0500. Refer
to EC-332, "
DTC Logic"
•If DTC P1574 is displayed with DTC P0605, first perform the trouble diagno sis for DTC P0605. Refer
to EC-351, "
DTC Logic"
•If DTC P1574 is displayed with DTC P0607, first perform the trouble diagno sis for DTC P0607. Refer
to EC-353, "
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 wheel s 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-388, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431599
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to TM-93, "
CONSULT Function".
Is DTC detected?
DTC No. CONSULT screen terms
(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
Revision: August 2015 2016 Versa Note
cardiagn.com
EC-394
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P1720 VSS
P1720 VSS
DescriptionINFOID:0000000012431605
ECM receives two vehicle speed signals via the CAN comm
unication line. One is sent from “ABS actuator and
electric unit (control unit)” via combination meter, and the other is from TCM (Transmission control module).
ECM uses these signals for engine control.
DTC LogicINFOID:0000000012431606
DTC DETECTION LOGIC
NOTE:
• If DTC P1720 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
• If DTC P1720 is displayed with DTC P0605, first perform the trouble diagno sis for DTC P0605. Refer
to EC-351, "
DTC Logic".
• If DTC P1720 is displayed with DTC P0607, first perform the trouble diagno sis for DTC P0607. Refer
to EC-353, "
DTC Logic".
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.
2. Drive vehicle at a speed of 20 km/h (12 MPH) or more for at least 5 seconds without depressing the brake pedal.
3. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-394, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000012431607
1.CHECK DTC WITH TCM
Check DTC with TCM. Refer to TM-110, "
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 A ND ELECTRIC UNIT (CONTROL UNIT)”
Check DTC with “ABS actuator and elec tric unit (control unit)”. Refer to BRC-43, "
DTC Index".
Is the inspection result normal?
DTC No. Trouble diagnosis content DTC detecting condition Possible cause
P1720 Vehicle speed sensor
(TCM output) The difference between two vehicle
speed signals is out of the specified
range. • Harness or connectors
(Secondary speed sensor circuit is open or shorted.)
(Wheel sensor circuit is open or shorted.)
•TCM
• Secondary speed sensor
• ABS actuator and electric unit (control unit)
• Wheel sensor
• Combination meter
Revision: August 2015 2016 Versa Note
cardiagn.com
EC-430
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P219A AIR FUEL RATIO
Check compression pressure. Refer to
EM-13, "Inspection".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
9.DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace fuel filter and fuel pump assembly. Refer to FL-6, "Exploded View".
NO >> Repair or replace error-detected parts.
10.CHECK FUNCTION OF IGNITION COIL-2
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a non-malfunctioning spark plug.
3. Crank engine for approximately 3 seconds, and rec heck whether spark is generated between the spark
plug and the grounded metal portion.
Is the inspection result normal?
YES >> GO TO 11.
NO >> Check ignition coil, power transistor and their circuits. Refer to EC-451, "
Component Function
Check".
11 .CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> 1. Repair or clean spark plug. Refer to EM-47,
"Exploded View".
2. GO TO 12.
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-117, "
Spark Plug".
12.CHECK FUNCTION OF IGNITION COIL-3
1. Reconnect the initial spark plugs.
2. Crank engine for approximately 3 seconds, and rec heck whether spark is generated between the spark
plug and the grounded portion.
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-117, "
Spark
Plug".
Spark should be generated.
SEF156I
Spark should be generated.
Revision: August 2015
2016 Versa Note
cardiagn.com
P219C, P219D, P219E, P219F AIR FUEL RATIO
EC-435
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10. Allow a 13-17mm (0.52-0.66 in) spacing between spark plug and
grounded metal portion as shown in the figure to fix the ignition
coil with a rope or an equivalent.
11. Crank the engine for approximately 3 seconds to see if sparking occurs between spark plug and the grounded metal portion.
CAUTION:
• The discharge voltage becomes 20 kV or higher. There-fore, always stay away from the spark plug and ignition
coil at least 50 cm (19.7 in) during the inspection.
• Leaving a space of more than 17mm (0.66 in) may damage
the ignition coil.
NOTE:
When the gap is less than 13 mm (0.52 in), a the sp ark might be generated even if the coil is mal-
functioning.
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 10.
8.CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-13, "
Inspection".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
9.DETECT MALFUNCTIONING PART
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES >> Replace fuel filter and fuel pump assembly. Refer to FL-6, "Exploded View".
NO >> Repair or replace error-detected parts.
10.CHECK FUNCTION OF IGNITION COIL-2
1. Turn ignition switch OFF.
2. Disconnect spark plug and connect a non-malfunctioning spark plug.
3. Crank engine for approximately 3 seconds, and rec heck whether spark is generated between the spark
plug and the grounded metal portion.
Is the inspection result normal?
YES >> GO TO 11.
NO >> Check ignition coil, power transistor and their circuits. Refer to EC-451, "
Component Function
Check".
11 .CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
Is the inspection result normal?
YES >> 1. Repair or clean spark plug. Refer to EM-47,
"Exploded View".
2. GO TO 12.
NO >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-117, "
Spark Plug".
12.CHECK FUNCTION OF IGNITION COIL-3Spark should be generated.
JMBIA0066GB
Spark should be generated.
SEF156I
Revision: August 2015
2016 Versa Note
cardiagn.com
EC-444
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
ELECTRICAL LOAD SIGNAL
ELECTRICAL LOAD SIGNAL
DescriptionINFOID:0000000012431645
The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred to
ECM through the CAN communication line.
Component Function CheckINFOID:0000000012431646
1.CHECK REAR WINDOW DEFOGGER SWITCH FUNCTION
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT.
3. Select “LOAD SIGNAL” and check indication under the following conditions.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-444, "
Diagnosis Procedure".
2.CHECK LIGHTING SWITCH FUNCTION
Check “LOAD SIGNAL” indication under the following conditions.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Go to EC-444, "
Diagnosis Procedure".
3.CHECK HEATER FAN CONTROL SWITCH FUNCTION
Select “HEATER FAN SW” and check indication under the following conditions.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to EC-444, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000012431647
1.INSPECTION START
Confirm the malfunctioning circuit (rear window defogger, headlamp or heater fan). Refer to EC-444, "
Compo-
nent Function Check".
Which circuit is related to the incident?
Rear window defogger>>GO TO 2
Headlamp>>GO TO 3.
Heater fan>>GO TO 4.
2.CHECK REAR WINDOW DEFOGGER SYSTEM
Perform trouble diagnosis of rear window defogger system. Refer to DEF-17, "
Work Flow".
Monitor itemConditionIndication
LOAD SIGNAL Rear window defogger switch ON ON
OFF OFF
Monitor item
ConditionIndication
LOAD SIGNAL Lighting switch ON at 2nd position ON
OFF
OFF
Monitor item ConditionIndication
HEATER FAN SW Heater fan control switch ON ON
OFF OFF
Revision: August 2015
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IGNITION SIGNALEC-453
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3. Turn ignition switch ON.
4. Check the voltage between ignition coil harness connector and ground.
Is the inspection result normal?
YES >> GO TO 8.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
8.CHECK IGNITION COIL GROUND CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Check the continuity between ignition coil harness connector and ground.
3. Also check harness for short to power.
Is the inspection result normal?
YES >> GO TO 9.
NO >> Repair open circuit or short to power in harness or connectors.
9.CHECK IGNITION COIL OUTPUT SI GNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect ECM harness connector.
2. Check the continuity between ECM harness connector and ignition coil harness connector.
3. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES >> GO TO 10.
NO >> Repair open circuit or short to ground or short to power in harness or connectors.
10.CHECK IGNITION COIL WITH POWER TRANSISTOR
Refer to EC-454, "
Component Inspection (Ignition Coil with Power Transistor)".
Is the inspection result normal?
YES >> GO TO 11.
NO >> Replace malfunctioning ignition coil with power transistor. Refer to EM-47, "
Removal and Installa-
tion".
11 .CHECK INTERMITTENT INCIDENT
Refer to GI-42, "
Intermittent Incident".
Ignition coil
Ground Voltage
Cylinder Connector Terminal
1F343
Ground Battery voltage
2F353
3F363
4F373
Ignition coil
Ground Continuity
Cylinder Connector Terminal
1F342
GroundExisted
2F352
3F362
4F372
Ignition coil
ECM
Continuity
Cylinder Connector Terminal Connector Terminal
1F341
F1017
Existed
2F351
18
3F361 22
4F371 21
Revision: August 2015 2016 Versa Note
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