EC-26
< BASIC INSPECTION >[HR16DE]
INSPECTION AND ADJUSTMENT
• Each time electric throttle control actuator or ECM is replaced.
• Idle speed or ignition timing is out of specification.
IDLE AIR VOLUME LEARNING
: Special Repair RequirementINFOID:0000000005398245
1.PRECONDITIONING
Make sure that all of the following conditions are satisfied.
Learning will be cancelled if any of the follo wing conditions are missed for even a moment.
• Battery voltage: More than 12.9 V (At idle)
• Engine coolant temperature: 70 - 100 °C (158 - 212° F)
• Selector lever: P or N (A/T), Neutral (M/T)
• Electric load switch: OFF (Air conditioner, headlamp, rear window defogger)
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine is
started the headlamp will not be illuminated.
• Steering wheel: Neutral (Straight-ahead position)
• Vehicle speed: Stopped
• Transmission: Warmed-up
- A/T models
• With CONSULT-III: Drive vehicle until “FLUID TEMP SE” in “DATA MONITOR” mode of “TRANSMISSION”
system indicates less than 0.9 V.
• Without CONSULT-III: Drive vehicle for 10 minutes.
- M/T models
• Drive vehicle for 10 minutes.
Do you have CONSULT-III?
YES >> GO TO 2.
NO >> GO TO 3.
2.IDLE AIR VOLUME LEARNING
With CONSULT-III
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-25, "
ACCELERATOR PEDAL
RELEASED POSITION LEARNING : Special Repair Requirement".
2. Perform Throttle Valve Closed Position Learning. Refer to EC-25, "
THROTTLE VALVE CLOSED POSI-
TION LEARNING : Special Repair Requirement".
3. Start engine and warm it up to normal operating temperature.
4. Select “IDLE AIR VOL LEARN” in “WORK SUPPORT” mode.
5. Touch “START” and wait 20 seconds.
Is
“CMPLT” displayed on CONSULT-III screen?
YES >> GO TO 4.
NO >> GO TO 5.
3.IDLE AIR VOLUME LEARNING
Without CONSULT-III
NOTE:
• It is better to count the ti me accurately with a clock.
• It is impossible to switch the di agnostic mode when an accelerator pedal position sensor circuit has
a malfunction.
1. Perform Accelerator Pedal Released Position Learning. Refer to EC-25, "
ACCELERATOR PEDAL
RELEASED POSITION LEARNING : Special Repair Requirement".
2. Perform Throttle Valve Closed Position Learning. Refer to EC-25, "
THROTTLE VALVE CLOSED POSI-
TION LEARNING : Special Repair Requirement".
3. Start engine and warm it up to normal operating temperature.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Confirm that accelerator pedal is fully releas ed, turn ignition switch ON and wait 3 seconds.
6. Repeat the following procedure quickly five times within 5 seconds.
- Fully depress the accelerator pedal.
- Fully release the accelerator pedal.
7. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops
blinking and turned ON.
8. Fully release the accelerator pedal within 3 seconds after the MIL turned ON.
Revision: January 20102010 Versa
EC-470
< ECU DIAGNOSIS >[HR16DE]
ECM
P0460 0460 FUEL LEV SEN SLOSH
— 2×AEC-336
P0461 0461 FUEL LEVEL SENSOR — 2×BEC-337
P0462 0462 FUEL LEVL SEN/CIRC — 2×BEC-339
P0463 0463 FUEL LEVL SEN/CIRC — 2×BEC-339
P0500 0500
VEH SPEED SEN/CIRC*6—2×BEC-341
P0506 0506 ISC SYSTEM — 2×BEC-343
P0507 0507 ISC SYSTEM — 2×BEC-345
P0603 0603 ECM BACK UP/CIRCUIT — 2×BEC-347
P0605 0605 ECM — 1 or 2× or — B EC-349
P0607 0607 ECM —1 (A/T)
2 (M/T) ×
(A/T)
— (M/T) B
EC-351
P0643 0643 SENSOR POWER/CIRC — 1×BEC-352
P0705 0705 T/M RANGE SENSOR A — 2×BAT- 9 0
P0710 0710
FLUID TEMP SENSOR A*9—2×BAT- 9 5
P0720 0720
OUTPUT SPEED SENSOR*6—2×BAT- 1 0 0
P0725 0725 ENGINE SPEED — 2×BAT- 1 0 5
P0731 0731
1GR INCORRECT RATIO*9—2×BAT- 1 0 9
P0732 0732
2GR INCORRECT RATIO*9—2×BAT- 11 2
P0733 0733
3GR INCORRECT RATIO*9—2×BAT- 11 5
P0734 0734
4GR INCORRECT RATIO*9—2×BAT- 11 8
P0740 0740 TORQUE CONVERTER — 2×BAT- 1 2 3
P0744 0744 TORQUE CONVERTER — 2×BAT- 1 2 8
P0745 0745 PC SOLENOID A — 2×BAT- 1 3 3
P0750 0750 SHIFT SOLENOID A — 1×BAT- 1 3 8
P0755 0755 SHIFT SOLENOID B — 1×BAT- 1 4 3
P0850 0850 P-N POS SW/CIRCUIT — 2×BEC-356
P1148 1148 CLOSED LOOP-B1 — 1×AEC-361
P1217 1217 ENG OVER TEMP — 1×BEC-362
P1225 1225 CTP LEARNING-B1 — 2——EC-366
P1226 1226 CTP LEARNING-B1 — 2——EC-368
P1421 1421 COLD START CONTROL — 2×AEC-370
P1610 1610 LOCK MODE — 2——BL-259
P1611 1611 ID DISCORD, IMMU-ECM — 2——BL-259
P1612 1612 CHAIN OF ECM-IMMU — 2——BL-259
P1613 1613 ECM INT CIRC-IMMC — 2——BL-259
P1614 1614 CHAIN OF IMMU-KEY — 2——BL-259
P1615 1615 DIFFERENCE OF KEY — 2——BL-259
P1715 1715 IN PULY SPEED — 2——EC-372
P1760 1760 OVER CLUTCH SOLENOID — 2 ×BAT- 1 4 8
P1805 1805 BRAKE SW/CIRCUIT — 2——EC-373
P2100 2100 ETC MOT PWR-B1 — 1×BEC-377
P2101 2101 ETC FNCTN/CIRC-B1 — 1×BEC-381
DTC*1
Items
(CONSULT-III screen terms) SRT
code Trip MIL Permanent
DTC
group*
4
Reference page
CONSULT-III
GST*
2ECM*3
Revision: January 20102010 Versa
EC-544
< SERVICE INFORMATION >[MR18DE]
ON BOARD DIAGNOSTIC (OBD) SYSTEM
SENSOR POWER/CIRC
P0643 0643 — 1 ×BEC-896
T/M RANGE SENSOR A P0705 0705 — 2 ×BAT- 9 0
(A/T)
CVT-62
(CVT)
FLUID TEMP SENSOR A*
9P0710 0710 — 2 (A/T)
1 (CVT) ×
BAT- 9 5
(A/T)
CVT-67
(CVT)
INPUT SPEED SENSOR A P0715 0715 — 2 ×BCVT-72
OUTPUT SPEED SENSOR*8P0720 0720 — 2 ×BAT- 1 0 0
(A/T)
CVT-76
(CVT)
ENGINE SPEED P0725 0725 — 2 ×BAT- 1 0 5
1GR INCORRECT RATIO*9P0731 0731 — 2 ×BAT- 1 0 9
2GR INCORRECT RATIO*9P0732 0732 — 2 ×BAT- 11 2
3GR INCORRECT RATIO*9P0733 0733 — 2 ×BAT- 11 5
4GR INCORRECT RATIO*9P0734 0734 — 2 ×BAT- 11 8
TORQUE CONVERTER P0740 0740 — 2 ×BAT- 1 2 3
(A/T)
CVT-84
(CVT)
TORQUE CONVERTER P0744 0744 — 2 ×BAT- 1 2 8
(A/T)
CVT-89
(CVT)
PC SOLENOID A P0745 0745 — 2 ×BAT- 1 3 3
(A/T)
CVT-91
(CVT)
PC SOLENOID A P0746 0746 — 1 ×BCVT-96
SHIFT SOLENOID A P0750 0750 — 1 ×BAT- 1 3 8
SHIFT SOLENOID B P0755 0755 — 1 ×BAT- 1 4 3
PC SOLENOID B P0776 0776 — 2 ×BCVT-98
PC SOLENOID B P0778 0778 — 2 ×BCVT-100
FLUID PRESS SEN/SW A P0840 0840 — 2 ×BCVT-105
P-N POS SW/CIRCUIT P0850 0850 — 2 ×BEC-901
C L O S E D L O O P - B 1 P 11 4 8 11 4 8 — 1 ×AEC-907
TCS C/U FUNCTN P1211 1211 — 2 — —EC-908
TCS/CIRC P1212 1212 — 2 — —EC-909
ENG OVER TEMP P1217 1217 — 1 ×BEC-910
CTP LEARNING-B1 P1225 1225 — 2 — —EC-919
CTP LEARNING-B1 P1226 1226 — 2 — —EC-921
COLD START CONTROL P1421 1421 — 2 ×AEC-923
ASCD SW P1564 1564 — 1 — —EC-925
ASCD BRAKE SW P1572 1572 — 1 — —EC-931
ASCD VHL SPD SEN P1574 1574 — 1 — —EC-940
LOCK MODE P1610 1610 — 2 — —BL-259
ID DISCORD,IMMU-ECM P1611 1611 — 2 — —BL-259
CHAIN OF ECM-IMMU P1612 1612 — 2 — —BL-259
CHAIN OF IMMU-KEY P1614 1614 — 2 — —BL-259
Items
(CONSULT-III screen terms) DTC*
1
SRT
code Trip MIL Permanent
DTC
group
*4Reference
CONSULT-III
GST*
2ECM*3
Revision: January 20102010 Versa
BASIC SERVICE PROCEDUREEC-581
< SERVICE INFORMATION > [MR18DE]
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• Electric load switch: OFF
[Air conditioner, headlamp, rear window defogger]
On vehicles equipped with daytime light systems, if the parking brake is applied before the engine is
started the headlamp will not be illuminated.
• Steering wheel: Neutral (Straight-ahead position)
• Vehicle speed: Stopped
• Transmission: Warmed-up
- Models with CONSULT-III (A/T and CVT models)
• Drive vehicle until “FLUID TEMP SE” in “DATA MONI TOR” mode of “A/T” or “CVT” system indicates less
than 0.9 V.
- Models without CONSULT-III (A/T and CVT models) and M/T models
• Drive vehicle for 10 minutes.
OPERATION PROCEDURE
With CONSULT-III
1. Perform EC-580, "Accelerator Pedal Released Position Learning".
2. Perform EC-580, "
Throttle Valve Closed Position Learning".
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PREP ARATION (previously mentioned) are in good order.
5. Select “IDLE AIR VOL LEA RN” in “WORK SUPPORT” mode.
6. Touch “START” and wait 20 seconds.
7. Make sure that “CMPLT” is displayed on CONSULT-III screen. If “CMPLT” is not displayed, Idle Air Vol-
ume Learning will not be carried out successfully. In this case, find the cause of the incident by referring to
the DIAGNOSTIC PROCEDURE below.
8. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.
Refer to EC-574, "
Basic Inspection".
Without CONSULT-III
NOTE:
•It is better to count the time accurately with a clock.
• It is impossible to switch the di agnostic mode when an accelerator pedal position sensor circuit has
a malfunction.
1. Perform EC-580, "
Accelerator Pedal Released Position Learning".
2. Perform EC-580, "
Throttle Valve Closed Position Learning".
3. Start engine and warm it up to normal operating temperature.
4. Check that all items listed under the topic PREP ARATION (previously mentioned) are in good order.
5. Turn ignition switch OFF and wait at least 10 seconds.
6. Confirm that accelerator pedal is fully releas ed, turn ignition switch ON and wait 3 seconds.
7. Repeat the following procedure quick ly five times within 5 seconds.
a. Fully depress the accelerator pedal.
b. Fully release the accelerator pedal.
8. Wait 7 seconds, fully depress the accelerator pedal and keep it for approx. 20 seconds until the MIL stops blinking and turned ON.
9. Fully release the accelerator pedal within 3 seconds after the MIL turned ON.
10. Start engine and let it idle.
Item Specification
Idle speed M/T: 700
± 50 rpm (in Neutral position)
A/T: 700 ± 50 rpm (in P or N position)
CVT: 700 ± 50 rpm (in P or N position)
Ignition timing M/T: 13
± 5 ° BTDC (in Neutral position)
A/T: 13 ± 5° BTDC (in P or N position)
CVT: 13 ± 5 ° BTDC (in P or N position)
Revision: January 20102010 Versa
EM-58
< ON-VEHICLE REPAIR >[HR16DE]
TIMING CHAIN
Check for cracks (A) and any excessive wear (B) at link plates and
roller links of timing chain. Replace timing chain as necessary.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
• Before starting engine, check oil/fluid levels incl
uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-14, "
Fluids and Lubricants".
• Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside chain tensioner drops af ter removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate an unusualness. Noise
will stop after hydraulic pressure rises.
• Warm up engine thoroughly to make sure there is no leakage of fuel, or any oil/fluids including engine oil and
engine coolant.
• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the specified level, if necessary.
Summary of the inspection items:
* Transaxle fluid, power steering fluid, brake fluid, etc.
JPBIA0091ZZ
Items Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Other oils and fluid* LevelLeakage Level
Fuel LeakageLeakageLeakage
Revision: January 20102010 Versa
EM-68
< ON-VEHICLE REPAIR >[HR16DE]
CAMSHAFT
Measure the diameter of valve lifter hole of cylinder head with an
inside micrometer (A).
VALVE LIFTER CLEARANCE
• (Valve lifter clearance) = (Valve lifter hole diameter) – (Valve lifter outer diameter)
• If out of the standard, referring to the each standard of va
lve lifter outer diameter and valve lifter hole diame-
ter, replace either or both valve lifter and cylinder head.
INSPECTION AFTER INSTALLATION
Inspection for Leaks
The following are procedures for checking fluids leak, lubricates leak.
• Before starting engine, check oil/fluid levels incl uding engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to MA-14, "
Fluids and Lubricants".
• Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration. NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal/installation, slack in the guide may
generate a pounding noise during and just after engine start. However, this is normal. Noise will stop after
hydraulic pressure rises.
• Warm up engine thoroughly to make sure there is no leakage of fuel, or any oil/fluids including engine oil and
engine coolant.
• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the specified level, if necessary.
Summary of the inspection items:
*: Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.
Inspection of Camshaft Sprocket (INT) Oil Groove
CAUTION:
• Perform this inspection only when DTC P0011 is de tected in self-diagnostic results of CONSULT-III
and it is directed according to inspect ion procedure of EC section. Refer to EC-127, "
Diagnosis Pro-
cedure".
• Check when engine is cold so as to pr event burns from the splashing engine oil.
1. Check engine oil level. Refer to LU-7, "
Inspection".
2. Perform the following procedure so as to prevent the engine from being unintentionally started while
checking.
a. Release the fuel pressure. Refer to EC-496, "
Inspection".
Standard: Refer to
EM-112, "
Camshaft".
PBIC3184J
Standard: Refer to EM-112, "Camshaft".
Items Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Other oils and fluid* LevelLeakage Level
Fuel LeakageLeakageLeakage
Revision: January 20102010 Versa
EM-76
< ON-VEHICLE REPAIR >[HR16DE]
CYLINDER HEAD
• Use procedure below to check for fuel leakage.
- Turn ignition switch “ON” (with engine stopped). With fuel
pressure applied to fuel piping, check for fuel leak-
age at connection points.
- Start engine. With engine speed increased, che ck again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gases, or any oil/fluids includ- ing engine oil and engine coolant.
• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the specified level, if necessary.
Summary of the inspection items:
*: Transaxle fluid, power steering fluid, brake fluid, etc.
Disassembly and AssemblyINFOID:0000000005398074
DISASSEMBLY
Items Before starting engine Engine runningAfter engine stopped
Engine coolant LevelLeakage Level
Engine oil LevelLeakage Level
Other oils and fluid* LevelLeakage Level
Fuel LeakageLeakageLeakage
Exhaust gases —Leakage —
1. Spark plug 2. Valve collet3. Valve spring retainer
4. Valve spring 5. Valve spring seat6. Valve oil seal
7. Valve guide (EXH) 8. Valve guide (INT)9. Cylinder head
10. Valve seat (EXH) 11. Valve (EXH)12. Valve seat (INT)
13. Valve (INT)
A. Refer to Installation procedure B. Refer to Installation procedure
PBIC3734E
Revision: January 20102010 Versa
ENGINE ASSEMBLYEM-83
< REMOVAL AND INSTALLATION > [HR16DE]
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• If items or work required are not covered by the engine section, follow the procedures in the applica-
ble sections.
• Always use the support poin t specified for lifting.
• Use either 2-pole lift type or separate type lift as best you can. If board-on type is used for unavoid-
able reasons, support at the rear axle jacking point with a transmission jack or similar tool before
starting work, in preparation for the backward shif t of center of gravity.
• For supporting points fo r lifting and jacking point at rear axle, refer to GI-38, "
Garage Jack and
Safety Stand and 2-Pole Lift".
REMOVAL
Outline
Remove the engine and the transaxle assembly from t he vehicle downward. Separate the engine and the tran-
saxle.
Preparation
1. Remove the hood assembly. Refer to BL-14, "Removal and Installation".
2. Remove the cowl top cover and cowl top extension assembly. Refer to EI-22, "
Removal and Installation".
3. Release fuel pressure. Refer to EC-496, "
Inspection".
4. Drain engine coolant from radiator. Refer to CO-12, "
Changing Engine Coolant".
CAUTION:
• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.
5. Drain the transmission fluid. Refer to MT-11, "
Draining" (M/T).
6. Remove the following parts. • Engine under cover. Refer to EI-15, "
Removal and Installation".
• Front road wheels and tires. Refer to WT-7, "
Adjustment".
• Front fender protector (RH and LH). Refer to EI-24, "
Removal and Installation".
• Battery and battery tray. Refer to SC-7, "
Removal and Installation".
• Drive belt. Refer to EM-15, "
Removal and Installation".
• Air duct and air cleaner case assembly. Refer to EM-26, "
Exploded View".
• Radiator hose (upper and lower). Refer to CO-17, "
Component".
• Disconnect cooling fan controller wiring harness.
• Remove coolant reservoir tank.
• Remove fan shroud and cooling fan assembly. Refer to CO-19, "
Component (Models with A/C)" or CO-
19, "Component (Models without A/C)".
Engine Room LH
1. Disconnect all connections of engine harness around the engine mounting insulator (LH), and then tem-
porarily secure the engine harness into the engine side.
CAUTION:
Protect connectors using a resin bag against foreign materials.
2. Remove ground cable at transaxle side.
3. Disconnect fuel feed hose at engine side. Refer to EM-34, "
Exploded View".
4. Disconnect EVAP purge hose and brake booster vacuum hose.
5. Disconnect heater hoses, and install plugs them to prevent engine coolant from draining. Refer to CO-17,
"Component".
6. Disconnect control linkage from transaxle. Refer to AT-213, "
A/T Shift Selector Removal and Installation"
(A/T), MT-14, "Exploded View" (M/T).
7. Disconnect the clutch tube at tr ansmission side (if equipped). Refer to CL-15, "
Removal and Installation".
Engine Room RH
1. Remove ground cable between front cover and vehicle.
2. Remove generator and generator br acket (A/C models). Refer to SC-25, "
Removal and Installation".
3. Remove A/C compressor with piping connected from t he engine. Temporarily secure it on the vehicle side
with a rope to avoid putting load on it (if equipped). Refer to MTC-79, "
Removal and Installation of Com-
pressor - HR16DE".
Vehicle Underbody
Revision: January 20102010 Versa