2006 NISSAN VERSA engine overheat

PRECAUTIONS
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Revision: June 20062007 Versa

Gaskets, seals and O-rings should be replaced any time the A/T is disassembled.

It is very important to perform functional tests whenever they are indicated.

The valve body contains precision parts and requires extreme care when parts are removed and serviced.
Place disassembled valve body parts in order for easier and proper assembly. Care will also prevent
springs and small parts from becoming scattered or lost.

Properly installed valves, sleeves, plugs, etc. will slide along bores in valve body under their own weight.

Before assembly, apply a coat of recommended ATF to all parts. Apply petroleum jelly to protect O-rings
and seals, or hold bearings and washers in place during assembly. Do not use grease.

Extreme care should be taken to avoid damage to O-rings, seals and gaskets when assembling.

Clean or replace ATF cooler if excessive foreign material is found in oil pan or clogging strainer. Refer to
Refer to .

After overhaul, refill the A/T with new ATF.

When the A/T drain plug is removed, only some of the fluid is drained. Old A/T fluid will remain in torque
converter and ATF cooling system.
Always follow the procedures under “Changing A/T Fluid” in the AT section when changing A/T fluid. Refer
to AT - 1 7 , "
Changing A/T Fluid" , AT- 1 6 , "Checking A/T Fluid" .
Service Notice or PrecautionsUCS005M4
ATF COOLER SERVICE
If A/T fluid contains frictional material (clutches, bands, etc.), or if an A/T is repaired, overhauled, or replaced,
inspect and clean the A/T oil cooler mounted in the radiator or replace the radiator. Flush cooler lines using
cleaning solvent and compressed air after repair. Check Service Bulletins for latest A/T oil cooler cleaning pro-
cedure. For radiator replacement, refer to Refer to CO-11, "
RADIATOR" .
TORQUE CONVERTER SERVICE
The torque converter should be replaced under any of the following conditions:

External leaks in the hub weld area.

Converter hub is scored or damaged.

Converter pilot is broken, damaged or fits poorly into crankshaft.

Steel particles are found after flushing the cooler and cooler lines.

Pump is damaged or steel particles are found in the converter.

Vehicle has TCC shudder and/or no TCC apply. Replace only after all hydraulic and electrical diagnoses
have been made. (Converter clutch material may be glazed.)

Converter is contaminated with engine coolant containing antifreeze.

Internal malfunction of stator roller clutch.

Heavy clutch debris due to overheating (blue converter).

Steel particles or clutch lining material found in fluid filter or on magnet when no internal parts in unit are
worn or damaged — indicates that lining material came from converter.
The torque converter should not be replaced if:

The fluid has an odor, is discolored, and there is no evidence of metal or clutch facing particles.

The threads in one or more of the converter bolt holes are damaged.

A/T malfunction did not display evidence of damaged or worn internal parts, steel particles or clutch plate
lining material in unit and inside the fluid filter.

Vehicle has been exposed to high mileage (only). The exception may be where the torque converter
clutch dampener plate lining has seen excess wear by vehicles operated in heavy and/or constant traffic,
such as taxi, delivery or police use.

AT-76
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
OthersMaximum speed not
attained. Poor accel-
eration.ON vehicle1. A/T fluid levelAT- 1 6
2. PNP switch adjustmentAT- 2 4 6
3. Overdrive control switchAT- 1 8 6
4. Accelerator pedal position sensorEC-532
5. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRAT- 1 0 7, AT- 1 6 6
6. Shift solenoid valve AAT- 1 5 1
7. Shift solenoid valve BAT- 1 5 6
8. Control valve assemblyAT- 2 4 2
OFF vehicle9. Reverse clutchAT- 3 0 9
10. High clutchAT- 3 1 4
11. Brake bandAT- 3 4 3
12. Low & reverse brakeAT- 3 2 7
13. Oil pumpAT- 2 8 9
14. Torque converterAT- 2 6 8
Transaxle noise in
“D”, “2”, “1” and “R”
positions.ON vehicle 1. A/T fluid levelAT- 1 6
OFF vehicle 2. Torque converterAT- 2 6 8
Engine brake does
not operate in “1”
position.ON vehicle1. PNP switch adjustmentAT- 2 4 6
2. Control cable adjustmentAT- 2 3 3
3. Vehicle speed sensor·A/T (Revolution sensor)
and vehicle speed sensor·MTRAT- 1 0 7, AT- 1 6 6
4. Control valve assemblyAT- 2 4 2
5. Overrun clutch solenoid valveAT- 1 6 1
OFF vehicle6. Overrun clutchAT- 3 2 07. Low & reverse brakeAT- 3 2 7
Transaxle overheats.ON vehicle1. A/T fluid levelAT- 1 6
2. Engine idling speedEC-75
3. Accelerator pedal position sensorEC-532
4. Line pressure testAT- 5 6
5. Line pressure solenoid valveAT- 1 4 5
6. Control valve assemblyAT- 2 4 2
OFF vehicle7. Oil pumpAT- 2 8 9
8. Reverse clutchAT- 3 0 9
9. High clutchAT- 3 1 4
10. Brake bandAT- 3 4 3
11. Forward clutchAT- 3 2 0
12. Overrun clutchAT- 3 2 0
13. Low & reverse brakeAT- 3 2 7
14. Torque converterAT- 2 6 8
Items Symptom Condition Diagnostic item Reference page

CO-1
ENGINE COOLING SYSTEM
B ENGINE
CONTENTS
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SECTION CO
A
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Revision: June 20062007 Versa PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 2
OPERATION PROCEDURE ................................. 2
Precautions for Liquid Gasket .................................. 2
REMOVAL OF LIQUID GASKET SEALING .......... 2
LIQUID GASKET APPLICATION PROCEDURE ..... 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
OVERHEATING CAUSE ANALYSIS .......................... 5
Troubleshooting Chart .............................................. 5
COOLING SYSTEM .................................................... 7
Cooling Circuit .......................................................... 7
ENGINE COOLANT .................................................... 8
Inspection ................................................................. 8
LEVEL CHECK ..................................................... 8
CHECKING COOLING SYSTEM FOR LEAKS ..... 8
Changing Engine Coolant ........................................ 8
DRAINING ENGINE COOLANT ........................... 8
REFILLING ENGINE COOLANT .......................... 8
FLUSHING COOLING SYSTEM ........................... 9
RADIATOR .................................................................11
Components ............................................................11
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 12
INSPECTION AFTER INSTALLATION ............... 12
Checking Radiator Cap .......................................... 13
Checking Radiator .................................................. 13
COOLING FAN ......................................................... 15
Components (Models With A/C) ............................. 15Components (Models Without A/C) ........................ 15
Removal and Installation ........................................ 16
REMOVAL ........................................................... 16
INSTALLATION ................................................... 16
DISASSEMBLY AND ASSEMBLY .......................... 16
DISASSEMBLY ................................................... 16
INSPECTION AFTER DISASSEMBLY ............... 16
ASSEMBLY ......................................................... 16
WATER PUMP .......................................................... 17
Components ........................................................... 17
Removal and Installation ........................................ 17
REMOVAL ........................................................... 17
INSPECTION AFTER REMOVAL ....................... 17
INSTALLATION ................................................... 17
INSPECTION AFTER INSTALLATION ................ 17
THERMOSTAT .......................................................... 18
Components ........................................................... 18
Removal and Installation ........................................ 18
REMOVAL ........................................................... 18
INSPECTION AFTER REMOVAL ....................... 18
INSTALLATION ................................................... 19
INSPECTION AFTER INSTALLATION ................ 19
WATER OUTLET AND WATER CONTROL VALVE ... 20
Components ........................................................... 20
Removal and Installation ........................................ 20
REMOVAL ........................................................... 20
INSPECTION AFTER REMOVAL ....................... 21
INSTALLATION ................................................... 21
INSPECTION AFTER INSTALLATION ................ 22
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 23
Standard and Limit .................................................. 23
CAPACITY ........................................................... 23
THERMOSTAT .................................................... 23
WATER CONTROL VALVE ................................. 23
RADIATOR .......................................................... 23

OVERHEATING CAUSE ANALYSIS
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Revision: June 20062007 Versa
OVERHEATING CAUSE ANALYSISPFP:00012
Troubleshooting ChartEBS00T78
Symptom Check items
Cooling sys-
tem parts
malfunctionPoor heat transferWater pump malfunction Worn or loose drive belt
— Thermostat stuck closed Thermostat
Damaged finsDust contamination or
paper clogging
Physical damage
Clogged radiator cooling
tubeExcess foreign material
(rust, dirt, sand, etc.)
Reduced air flowCooling fan does not oper-
ate
Fan assembly— High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud — —
Improper engine coolant
mixture ratio—
—
Engine coolant viscosity—
Poor engine coolant quality — —
Insufficient engine coolantEngine coolant leaksCooling hoseLoose clamp
Cracked hose
Water pump Poor sealing
Radiator capLoose
Poor sealing
RadiatorO-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank Cracked reservoir tank
Overflowing reservoir tankExhaust gas leaks into
cooling systemCylinder head deterioration
Cylinder head gasket dete-
rioration

CO-6Revision: June 2006
OVERHEATING CAUSE ANALYSIS
2007 Versa
Except cool-
ing system
parts mal-
function— Overload on engineAbusive drivingHigh engine rpm under no
load
Driving in low gear for
extended 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
flowBlocked 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

ENGINE COOLANT
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Revision: June 20062007 Versa

If water drain plug on cylinder block is removed, close and tighten it. Refer to EM-77, "CYLIN-
DER BLOCK" .
CAUTION:
Be sure to clean radiator drain plug and install with new O-ring. Refer to CO-11, "
Components" .
3. Make sure that each hose clamp has been firmly tightened.
4. Remove air duct assembly. Refer to EM-16, "
AIR CLEANER AND AIR DUCT" .
5. Disconnect heater hose (1) at position ( ) as shown.

Front

Reposition heater hose as high as possible.
6. Fill radiator and reservoir tank to specified level.

Pour engine coolant through engine coolant filler neck
slowly of less than 2 (2 1/8 US qt, 1-3/4 lmp qt) a minute
to allow air in system to escape.

Use NISSAN Genuine Engine Coolant or equivalent
mixed with water (distilled or demineralized). Fill cooling
system to specification. Refer to MA-11, "
RECOM-
MENDED FLUIDS AND LUBRICANTS".

When engine coolant overflows disconnected heater hose,
connect heater hose, and continue filling the engine coolant, if
heater hose is disconnected.
7. Install radiator cap.
8. Install air duct assembly. Refer to EM-16, "
AIR CLEANER AND AIR DUCT" .
9. Warm up until opening thermostat. Standard for warming-up time is approximately 10 minutes at 3,000
rpm.

Make sure thermostat opening condition by touching radiator hose (lower) to see a flow of warm water.
CAUTION:
Watch water temperature gauge so as not to overheat the engine.
10. Stop engine and cool down to less than approximately 50°C (122°F).

Cool down using fan to reduce the time.

If necessary, refill radiator up to filler neck with engine coolant.
11. Refill reservoir tank to “MAX” level line with engine coolant.
12. Repeat steps 6 through 11 two or more times with radiator cap installed until engine coolant level no
longer drops.
13. Check cooling system for leaks with engine running.
14. Warm up engine, and check for sound of engine coolant flow while running engine from idle up to 3,000
rpm with heater temperature controller set at several position between “COOL” and “WARM”.

Sound may be noticeable at heater unit.
15. Repeat step 14 three times.
16. If sound is heard, bleed air from cooling system by repeating steps 6 through 11 until engine coolant level
no longer drops.
FLUSHING COOLING SYSTEM
1. Install reservoir tank if removed. Refer to CO-11, "RADIATOR" .
2. Install radiator drain plug.
PBIC3802E
SM A18 2B

EC-5
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ECA
Revision: June 20062007 Versa DTC Confirmation Procedure ............................... 399
Diagnostic Procedure ........................................... 400
DTC P0456 EVAP CONTROL SYSTEM ................ 406
On Board Diagnosis Logic ................................... 406
DTC Confirmation Procedure ............................... 407
Overall Function Check ........................................ 408
Diagnostic Procedure ........................................... 409
DTC P0460 FUEL LEVEL SENSOR ...................... 415
Component Description ........................................ 415
On Board Diagnostic Logic .................................. 415
DTC Confirmation Procedure ............................... 415
Diagnostic Procedure ........................................... 416
Removal and Installation ...................................... 416
DTC P0461 FUEL LEVEL SENSOR ...................... 417
Component Description ........................................ 417
On Board Diagnostic Logic .................................. 417
Overall Function Check ........................................ 417
Diagnostic Procedure ........................................... 418
Removal and Installation ...................................... 418
DTC P0462, P0463 FUEL LEVEL SENSOR .......... 419
Component Description ........................................ 419
On Board Diagnostic Logic .................................. 419
DTC Confirmation Procedure ............................... 419
Diagnostic Procedure ........................................... 420
Removal and Installation ...................................... 420
DTC P0500 VSS ..................................................... 421
Description ........................................................... 421
On Board Diagnosis Logic ................................... 421
DTC Confirmation Procedure ............................... 421
Overall Function Check ........................................ 422
Diagnostic Procedure ........................................... 422
DTC P0506 ISC SYSTEM ....................................... 423
Description ........................................................... 423
On Board Diagnosis Logic ................................... 423
DTC Confirmation Procedure ............................... 423
Diagnostic Procedure ........................................... 424
DTC P0507 ISC SYSTEM ....................................... 425
Description ........................................................... 425
On Board Diagnosis Logic ................................... 425
DTC Confirmation Procedure ............................... 425
Diagnostic Procedure ........................................... 426
DTC P0605 ECM .................................................... 427
Component Description ........................................ 427
On Board Diagnosis Logic ................................... 427
DTC Confirmation Procedure ............................... 427
Diagnostic Procedure ........................................... 428
DTC P0643 SENSOR POWER SUPPLY ................ 430
On Board Diagnosis Logic ................................... 430
DTC Confirmation Procedure ............................... 430
Wiring Diagram .................................................... 431
Diagnostic Procedure ........................................... 433
DTC P0850 PNP SWITCH ...................................... 436
Component Description ........................................ 436
CONSULT-II Reference Value in Data Monitor Mode
. 436
On Board Diagnosis Logic ................................... 436
DTC Confirmation Procedure ............................... 436
Overall Function Check ........................................ 437Wiring Diagram .....................................................438
Diagnostic Procedure ...........................................439
DTC P1148 CLOSED LOOP CONTROL ................442
On Board Diagnosis Logic ....................................442
DTC P1217 ENGINE OVER TEMPERATURE ........443
System Description ...............................................443
CONSULT-II Reference Value in Data Monitor Mode
.444
On Board Diagnosis Logic ....................................445
Overall Function Check ........................................445
Wiring Diagram .....................................................448
Diagnostic Procedure ...........................................450
Main 13 Causes of Overheating ...........................458
Component Inspection ..........................................459
DTC P1225 TP SENSOR ........................................460
Component Description ........................................460
On Board Diagnosis Logic ....................................460
DTC Confirmation Procedure ...............................460
Diagnostic Procedure ...........................................461
Removal and Installation ......................................461
DTC P1226 TP SENSOR ........................................462
Component Description ........................................462
On Board Diagnosis Logic ....................................462
DTC Confirmation Procedure ...............................462
Diagnostic Procedure ...........................................463
Removal and Installation ......................................463
DTC P1421 COLD START CONTROL ...................464
Description ............................................................464
On Board Diagnosis Logic ....................................464
DTC Confirmation Procedure ...............................464
Diagnostic Procedure ...........................................464
DTC P1564 ASCD STEERING SWITCH ................466
Component Description ........................................466
CONSULT-II Reference Value in Data Monitor Mode
.466
On Board Diagnosis Logic ....................................466
DTC Confirmation Procedure ...............................467
Wiring Diagram .....................................................468
Diagnostic Procedure ...........................................469
Component Inspection ..........................................472
DTC P1572 ASCD BRAKE SWITCH ......................473
Component Description ........................................473
CONSULT-II Reference Value in Data Monitor Mode
.473
On Board Diagnosis Logic ....................................473
DTC Confirmation Procedure ...............................474
Wiring Diagram .....................................................475
Diagnostic Procedure ...........................................476
Component Inspection ..........................................481
DTC P1574 ASCD VEHICLE SPEED SENSOR .....483
Component Description ........................................483
On Board Diagnosis Logic ....................................483
DTC Confirmation Procedure ...............................483
Diagnostic Procedure ...........................................484
DTC P1715 INPUT SPEED SENSOR (TURBINE
REVOLUTION SENSOR) ........................................485
Description ............................................................485
CONSULT-II Reference Value in Data Monitor Mode
.485

EC-90Revision: June 2006
TROUBLE DIAGNOSIS
2007 Versa
2
P0031 P0032 Air fuel ratio (A/F) sensor 1 heater

P0037 P0038 Heated oxygen sensor 2 heater

P0075 Intake valve timing control solenoid valve

P0130 P0131 P0132 P0133 P2A00 Air fuel ratio (A/F) sensor 1

P0137 P0138 P0139 Heated oxygen sensor 2

P0441 EVAP control system purge flow monitoring

P0443 P0444 P0445 EVAP canister purge volume control solenoid valve

P0447 P0448 EVAP canister vent control valve

P0451 P0452 P0453 EVAP control system pressure sensor

P1217 Engine over temperature (OVERHEAT)

P1805 Brake switch

P2100 P2103 Throttle control motor relay

P2101 Electric throttle control function

P2118 Throttle control motor
3

P0011 Intake valve timing control

P0171 P0172 Fuel injection system function

P0300 - P0304 Misfire

P0420 Three way catalyst function

P0442 P0456 EVAP control system (SMALL LEAK, VERY SMALL LEAK)

P0455 EVAP control system (GROSS LEAK)

P0506 P0507 Idle speed control system

P0710 P0715 P0720 P0725 P0731 P0732 P0733 P0734 P0740 P0744 P0745 P0746 P0750 P0755 P0776 P0778
P0840 P0845 P1705 P1740 P1760 P1777 P1778 A/T or CVT related sensors, solenoid valves and switches

P1148 Closed loop control

P1421 Cold start control

P1564 ASCD steering switch

P1572 ASCD brake switch

P1574 ASCD vehicle speed sensor

P1715 Turbine revolution sensor (A/T), Primary speed sensor (CVT)

P2119 Electric throttle control actuator Priority Detected items (DTC)