EC-270
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P0300, P0301,
P0302, P0303, P0304 MISFIRE
P0300, P0301, P0302, P0303, P0304 MISFIRE
DTC LogicINFOID:0000000012431476
DTC DETECTION LOGIC
When a misfire occurs, engine speed will fluctuate. If the engine speed fluctuates enough to cause the crank-
shaft position (CKP) sensor (POS) signal to vary , ECM can determine that a misfire is occurring.
The misfire detection logic consists of the following two conditions.
1. One Trip Detection Logic (Three Way Catalyst Damage) On the 1st trip, when a misfire condition occurs that can damage the three way catalyst (TWC) due to
overheating, the MIL will blink.
When a misfire condition occurs, the ECM monitors the CKP sensor signal every 200 engine revolutions
for a change.
When the misfire condition decreases to a level that will not damage the TWC, the MIL will turn off.
If another misfire condition occurs that can dam age the TWC on a second trip, the MIL will blink.
When the misfire condition decreases to a level that will not damage the TWC, the MIL will remain on.
If another misfire condition occurs that can damage the TWC, the MIL will begin to blink again.
2. Two Trip Detection Logic (Exhaust quality deterioration) For misfire conditions that will not damage the TWC (but will affect vehicle emissions), the MIL will only
light when the misfire is detected on a second trip. Du ring this condition, the ECM monitors the CKP sen-
sor signal every 1,000 engine revolutions.
A misfire malfunction can be detected on any one cylinder or on multiple cylinders.
*: DTC is detected even where a malfunction occurs one side of the dual injector.
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-I
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Restart engine and let it idle for about 35 minutes.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-271, "Diagnosis Procedure".
Sensor Input signal to ECM ECM function
Crankshaft position sensor (POS) Engine speed On board diagnosis of misfire
DTC No. Trouble diagnosis content DTC detecting condition Possible cause
P0300 Multiple cylinder misfire detected Multiple cylinder misfire. • Improper spark plug • Insufficient compression
• Incorrect fuel pressure
• The fuel injector circuit is open or shorted
• Fuel injector
*
• Intake air leak
• The ignition signal circuit is open or shorted
• Lack of fuel
• Signal plate
• A/F sensor 1
• Incorrect PCV hose connection
P0301 No.1 cylinder misfire detected No. 1 cylinder misfires.
P0302 No. 2 cylinder misfire detected No. 2 cylinder misfires.
P0303 No. 3 cylinder misfire detected No. 3 cylinder misfires.
P0304 No. 4 cylinder misfire detected No. 4 cylinder misfires.
Revision: August 2015
2016 Versa Note
cardiagn.com
EC-368
< DTC/CIRCUIT DIAGNOSIS >[HR16DE]
P1217 ENGINE OVER TEMPERATURE
Is the inspection result normal?
YES >> GO TO 2.
NO >> Go to EC-441, "
Diagnosis Procedure".
2.CHECK COOLING SYSTEM FOR LEAK-I
Check cooling system for leak. Refer to CO-8, "
Inspection".
Is leakage detected?
YES >> GO TO 3.
NO >> GO TO 4.
3.CHECK COOLING SYSTEM FOR LEAK-II
Check the following for leak.
• Hose (Refer to CO-8, "
Inspection".)
• Radiator (Refer to CO-12, "
RADIATOR : Inspection".)
• Water pump (Refer to CO-18, "
Removal and Installation".)
>> Repair or replace malfunctioning part.
4.CHECK RADIATOR CAP
Check radiator cap. Refer to CO-12, "
RADIATOR CAP : Inspection".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace radiator cap. Refer to CO-13, "
Exploded View".
5.CHECK THERMOSTAT
Check thermostat. Refer to CO-20, "
Removal and Installation".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Replace thermostat. Refer to CO-20, "
Removal and Installation".
6.CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer to EC-202, "
Component Inspection".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Replace engine coolant temperature sensor. Refer to CO-23, "
Exploded View".
7.OVERHEATING CAUSE ANALYSIS
If the cause cannot be isolated, check CO-6, "
Troubleshooting Chart".
>> INSPECTION END
Revision: August 2015 2016 Versa Note
cardiagn.com
CO-1
ENGINE
C
DE
F
G H
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SECTION CO
A
CO
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O P
CONTENTS
ENGINE COOLING SYSTEM
HR16DE
PRECAUTION ....... ........................................
2
PRECAUTIONS .............................................. .....2
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
2
PREPARATION ............................................3
PREPARATION .............................................. .....3
Special Service Tool ........................................... ......3
Commercial Service Tool ..........................................3
SYSTEM DESCRIPTION ..............................4
DESCRIPTION ............................................... .....4
Engine Cooling System ....................................... ......4
Engine Cooling System Schematic ...........................5
SYMPTOM DIAGNOSIS ...............................6
OVERHEATING CAUSE ANALYSIS ............. .....6
Troubleshooting Chart ...............................................6
PERIODIC MAINTENANCE ..........................8
ENGINE COOLANT ....................................... .....8
Inspection ............................................................ ......8
Draining Engine Coolant ...........................................8
Refilling .....................................................................9
Flushing Cooling System ........................................11
RADIATOR .........................................................12
RADIATOR CAP .................................................... ....12
RADIATOR CAP : Inspection ..................................12
RADIATOR ............................................................. ....12
RADIATOR : Inspection ...........................................12
REMOVAL AND INSTALLATION ...............13
RADIATOR ....... .................................................13
Exploded View ..................................................... ....13
Removal and Installation .........................................13
COOLING FAN ..................................................16
Exploded View .........................................................16
Removal and Installation .........................................16
Disassembly and Assembly .....................................17
WATER PUMP ..................................................18
Exploded View .........................................................18
Removal and Installation .........................................18
THERMOSTAT ..................................................20
Exploded View .........................................................20
Removal and Installation .........................................20
WATER OUTLET ..............................................23
Exploded View .........................................................23
Removal and Installation .........................................24
SERVICE DATA AND SPECIFICATIONS
(SDS) ............... .......................................... ...
25
SERVICE DATA AND SPECIFICATIONS
(SDS) .................................................................
25
Standard and Limit .............................................. ....25
Revision: August 2015 2016 Versa Note
cardiagn.com
CO-6
< SYMPTOM DIAGNOSIS >[HR16DE]
OVERHEATING CAUSE ANALYSIS
SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting ChartINFOID:0000000012432132
Symptom
Check items
Cooling sys-
tem parts
malfunction Poor heat transfer
Water pump malfunction Worn or loose drive belt
—
Thermostat stuck closed Thermostat
Damaged fins
Dust contamination or pa-
per clogging
Physical damage
Clogged radiator cooling
tube Excess foreign material
(rust, dirt, sand, etc.)
Reduced air flow Cooling fan does not oper-
ate
Fan assembly —
High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud —Radiator shroud —
Improper engine coolant
mixture ratio —
Engine coolant viscosity —
Poor engine coolant quality —Periodic maintenance —
Insufficient engine coolant Engine coolant leaksCooling hose
Loose clamp
Cracked hose
Water pump Poor sealing
Radiator cap Loose
Poor sealing
Radiator O-ring for da
mage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tank Exhaust gas leaking into
cooling system Cylinder head deterioration
Cylinder head gasket deteri-
oration
Revision: August 2015
2016 Versa Note
cardiagn.com
OVERHEATING CAUSE ANALYSISCO-7
< SYMPTOM DIAGNOSIS > [HR16DE]
C
D
E
F
G H
I
J
K L
M A
CO
NP
O
Except cool-
ing system
parts mal-
function —
Overload on engine Abusive driving
High engine rpm under no
load
Driving in low gear for ex-
tended time
Driving at extremely high
speed
Power train system mal-
function
—
Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flow Blocked bumper
Installed front bumper fas-
cia cover
—
Blocked radiator grille Mud contamination or paper
clogging
Blocked radiator Blocked air flow
Blocked condenser
Installed large fog lamp
Symptom
Check items
Revision: August 2015 2016 Versa Note
cardiagn.com