battery location NISSAN TIIDA 2011 Service Repair Manual

AT-1
TRANSMISSION/TRANSAXLE
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SECTION AT
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CONTENTS
AUTOMATIC TRANSAXLE
SERVICE INFORMATION .. ..........................5
INDEX FOR DTC ............................................ .....5
Alphabetical Index ............................................... ......5
DTC No. Index ..........................................................5
PRECAUTIONS ...................................................7
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
7
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
7
Precaution for On Board Diagnosis (OBD) System
of A/T and Engine .....................................................
8
Precaution .................................................................8
Service Notice or Precaution .....................................9
PREPARATION ..................................................11
Special Service Tool ........................................... ....11
Commercial Service Tool ........................................14
A/T FLUID ...........................................................17
Checking A/T Fluid ..................................................17
Changing A/T Fluid .................................................17
A/T Fluid Cooler Cleaning .......................................18
A/T CONTROL SYSTEM ....................................21
Cross-Sectional View ..............................................21
Shift Mechanism .................................................. ....22
TCM Function ..........................................................30
CAN Communication ...............................................31
Input/Output Signal of TCM .....................................31
Line Pressure Control .............................................32
Shift Control ........................................................ ....33
Lock-up Control .......................................................34
Engine Brake Control (Overrun Clutch Control) ......35
Control Valve ....................................................... ....37
Centrifugal Cancel Mechanism ...............................37
ON BOARD DIAGNOSTIC (OBD) SYSTEM ......39
Introduction ......................................................... ....39
OBD-II Function for A/T System ..............................39
One or Two Trip Detection Logic of OBD-II ......... ....39
OBD-II Diagnostic Trouble Code (DTC) ..................39
Malfunction Indicator Lamp (MIL) ............................41
TROUBLE DIAGNOSIS ....................................42
DTC Inspection Priority Chart ..................................42
Fail-Safe ..................................................................42
How to Perform Trouble Diagnosis for Quick and
Accurate Repair .......................................................
43
A/T Electrical Parts Location ...................................49
Circuit Diagram ........................................................50
Inspections Before Trouble Diagnosis .....................51
Road Test ................................................................55
Check Before Engine Is Started ..............................56
Check at Idle ............................................................56
Cruise Test - Part 1 .................................................58
Cruise Test - Part 2 .................................................61
Cruise Test - Part 3 .................................................62
Vehicle Speed at Which Gear Shifting Occurs ........64
Vehicle Speed at Which Lock-up Occurs/Releas-
es .............................................................................
64
Symptom Chart ........................................................65
TCM Terminal and Reference Value .......................75
CONSULT-III Function (TRANSMISSION) .......... ....77
Diagnosis Procedure without CONSULT-III ............82
U1000 CAN COMM CIRCUIT ...........................87
Description ........................................................... ....87
On Board Diagnosis Logic .......................................87
Possible Cause ........................................................87
DTC Confirmation Procedure ..................................87
Wiring Diagram - AT - CAN .....................................88
Diagnosis Procedure ...............................................89
P0705 TRANSMISSION RANGE SWITCH A ...90
Description ...............................................................90
CONSULT-III Reference Value in Data Monitor
Mode .................................................................... ....
90
On Board Diagnosis Logic .......................................90
Possible Cause ........................................................90
DTC Confirmation Procedure ..................................90
Revision: May 2010 2011 Versa

AV-1
ELECTRICAL
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SECTION AV
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AV
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CONTENTS
AUDIO, VISUAL, NAVIGATION & TELEPHONE SYS- TEM
AUDIO WITHOUT NAVIGATION
SERVICE INFORMATION .. ..........................
3
PRECAUTIONS .............................................. .....3
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
3
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
3
PREPARATION ...................................................5
Commercial Service Tool .................................... ......5
AUDIO .................................................................6
Component Parts Location .................................. ......6
System Description ...................................................6
Schematic .................................................................8
Wiring Diagram - AUDIO - .........................................9
Audio Unit (Base System) Harness Connector
Terminal Layout ......................................................
15
Terminal and Reference Value for Audio Unit
(Base System) .........................................................
15
Audio Unit (Premium System) Harness Connector
Terminal Layout ......................................................
16
Terminal and Reference Value for Audio Unit
(Premium System) ..................................................
16
IPod Adapter Harness Connector Terminal Layout
....
18
Terminal and Reference Value for IPod Adapter ....19
Trouble Diagnosis ...................................................20
Noise Inspection ......................................................21
Power Supply Circuit Inspection .............................22
Steering Switch Check (With Bluetooth) .................22
Sound Is Not Heard from Front Door Speaker
(Base System) .........................................................
24
Sound Is Not Heard from Rear Door Speaker
(Base System) .........................................................
25
Sound Is Not Heard from Front Door Speaker or
Tweeter (Premium System) ....................................
26
Sound Is Not Heard from Rear Door Speaker
(Premium System) ............................................... ....
27
Removal and Installation .........................................29
iPod® CONNECTOR ........................................31
Removal and Installation .........................................31
iPod® ADAPTER ..............................................32
Removal and Installation .........................................32
AUDIO ANTENNA .............................................33
Location of Antenna ............................................. ....33
Removal and Installation of Roof Antenna ..............33
TELEPHONE .....................................................35
Component Parts and Harness Connector Loca-
tion ...........................................................................
35
System Description ..................................................35
Wiring Diagram - H/PHON - ....................................37
Bluetooth Control Unit Harness Connector Termi-
nal Layout ............................................................ ....
39
Terminal and Reference Value for Bluetooth Con-
trol Unit ....................................................................
39
Bluetooth Control Unit Self-Diagnosis Function ......41
Workflow .............................................................. ....41
Power Supply and Ground Circuit Inspection for
Bluetooth Control Unit .............................................
42
Steering Wheel Audio Co ntrol Switch Does Not
Operate ................................................................ ....
43
Voice Activated Control Function Does Not Oper-
ate ........................................................................ ....
43
Removal and Installation .........................................46
AUDIO WITH NAVIGATION
SERVICE INFORMATION .. .........................
50
PRECAUTIONS .................................................50
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ....
50
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ...................................
50
Revision: May 2010 2011 Versa

BL-2
Keyfob Function (Lock) Check ...............................82
Keyfob Function (Unlock) Check ............................82
ID Code Entry Procedure .................................... ...83
Keyfob Battery Replacement ............................... ...85
Removal and Installation of Remote Keyless Entry
Receiver .............................................................. ...
85
INTELLIGENT KEY SYSTEM ............................86
Component Parts and Harness Connector Loca-
tion ....................................................................... ...
86
System Description .................................................88
CAN Communication System Description ..............95
Schematic ............................................................ ...96
Wiring Diagram - I/KEY - ..................................... ...98
Intelligent Key Unit Har ness Connector Terminal
Layout .................................................................. ..
108
Terminal and Reference Value for Intelligent Key
Unit ........................................................................
108
Steering Lock Solenoid Harness Connector Ter-
minal Layout ..........................................................
110
Terminal and Reference Value for Steering Lock
Solenoid .................................................................
110
Terminal and Reference Value for BCM ................111
Trouble Diagnosis Procedure ................................115
CONSULT-III Functions (INTELLIGENT KEY) ......117
CONSULT-III Application Item ............................. ..117
Trouble Diagnosis Symptom Chart ........................119
CAN Communication System Inspection ...............126
Power Supply and Ground Circuit Inspection ........126
Key Switch (Intelligent Key Unit Input) Check .......127
Key Switch (BCM Input) Check .............................128
Ignition Knob Switch Check ................................. ..129
Door Switch Check (Hatchback) ............................131
Door Switch Check (Sedan) ..................................134
Door Request Switch Check ..................................135
Back Door Request Switch Check (Hatchback) ....137
Trunk Opener Request Switch Check (Sedan) ... ..138
Unlock Sensor Check ............................................140
Intelligent Key Warning Buzzer(s) Check ..............142
Outside Key Antenna (Dri ver Side and Passenger
Side) Check ......................................................... ..
143
Outside Key Antenna (Rear Bumper) Check .........144
Inside Key Antenna Check ....................................146
Steering Lock Solenoid Check ............................ ..147
Key Interlock Solenoid (With M/T) Check ..............149
Ignition Switch Position Check ............................ ..150
Stop Lamp Switch Check (With CVT or A/T) ....... ..150
Stop Lamp Switch Check (With M/T) .....................152
CVT or A/T Shift Selector (Park Position Switch)
Check .................................................................. ..
153
"P-SHIFT" Warning Lamp (With CVT or A/T)
Check ....................................................................
154
"LOCK" Warning Lamp (With M/T) Check .............155
"KEY" Warning Lamp (RED) Check ......................155
"KEY" Warning Lamp (G REEN) Check .................155
Check Warning Chime in Combination Meter ........156
Hazard Function Check .........................................156
Horn Function Check .... .........................................157
Headlamp Function Chec k ....................................157
Intelligent Key Battery Re placement .....................158
Remote Keyless Entry Func tion ............................158
Removal and Installation of Intelligent Key Unit ... .158
DOOR ...............................................................160
Fitting Adjustment ................................................ .160
Removal and Installation .......................................163
Back Door Stay Disposal ..................................... .166
FRONT DOOR LOCK .......................................167
Component Parts Location .................................. .167
Removal and Installation .......................................167
REAR DOOR LOCK ....................................... ..170
Component Parts Location .................................. .170
Removal and Installation .......................................170
BACK DOOR LOCK ....................................... ..173
Component Parts and Harness Connector Loca-
tion ....................................................................... .
173
System Description ...............................................173
Wiring Diagram - B/DOOR - ..................................174
Terminal and Reference Value for BCM ...............176
Terminal and Reference Value for Intelligent Key
Unit ....................................................................... .
180
CONSULT-III Function (BCM) ..............................182
Work Flow .............................................................183
Trouble Diagnosis Chart by Symptom ..................183
BCM Power Supply and Ground Circuit Inspection
.
183
Check Back Door Opener Switch Circuit (Without
Intelligent Key or Power Windows) ...................... .
184
Check Back Door Opener Switch Circuit (Without
Intelligent Key, with Power Windows) .................. .
187
Check Back Door Opener Switch Circuit (With In-
telligent Key) ........................................................ .
189
Check Back Door Lock Assembly (Actuator) Cir-
cuit ........................................................................
191
Removal and Installation .......................................193
TRUNK LID ..................................................... ..195
Fitting Adjustment ................................................ .195
Trunk Lid Assembly ..............................................195
Trunk Lid Lock ......................................................196
Trunk Lid Striker ....................................................196
TRUNK LID OPENER .......................................198
Component Parts and Harness Connector Loca-
tion ....................................................................... .
198
System Description ...............................................198
Wiring Diagram - TLID - ........................................199
Terminal and Reference Value for BCM ...............201
Terminal and Reference Value for Intelligent Key
Unit ....................................................................... .
205
CONSULT-III Function (BCM) ..............................207
Work Flow .............................................................208
Trouble Diagnosis Chart by Symptom ..................208
BCM Power Supply and Ground Circuit Inspection
.
208
Revision: May 2010 2011 Versa

BL-58
< SERVICE INFORMATION >
REMOTE KEYLESS ENTRY SYSTEM
REMOTE KEYLESS ENTRY SYSTEM
Component Parts and Harness Connector LocationINFOID:0000000005929302
System DescriptionINFOID:0000000005929303
INPUTS
Power is supplied at all times
• through 40A fusible link (letter g , located in the fuse and fusible link box)
• to BCM terminal 70
• through 10A fuse [No. 8, located in the fuse block (J/B)]
• to BCM terminal 57.
When the key switch is ON (key is inserted in ignition key cylinder), power is supplied
ALKIA1754ZZ
1. BCM M18, M19, M20
(view with glove box removed) 2. Remote keyless entry receiver M23 3. Horn relay H-1
(front of battery)
4. IPDM E/R E46, E48 5. Front door switch LH B8, RH B108 6. Rear door switch LH B6, RH B116
7. Back door lock assembly (back door switch) D405 (hatchback view with
back door open) 8. Key switch and key lock solenoid
M27 9. Horn E18, E20
Revision: May 2010
2011 Versa

BL-302
< SERVICE INFORMATION >
BODY REPAIR
1. When repairing and painting a portion of the body adjacent to plastic parts, consider their characteristics
(influence of heat and solvent) and remove them if neces sary or take suitable measures to protect them.
2. Plastic parts should be repaired and painted using methods suiting the materials
, characteristics.
LOCATION OF PLASTIC PARTS
Abbre- viation Material name Heat resisting
temperature °C ( °F) Resistance to gasoline and
solvents Other cautions
PE Polyethylene 60 (140)Gasoline and most solvents are
harmless if applied for a very
short time (wipe up quickly). Flammable
PVC Polyvinyl Chloride 80 (176) Same as above. Poison gas is emitted
when burned.
EPM/
EPDM Ethylene Propylene (Diene) rub-
ber
80 (176) Same as above.
Flammable
TPO/
TPR Thermoplastic Olefine/
Thermoplastic Rubber
80 (176) Same as above.
Flammable
PP Polypropylene 90 (194) Same as above. Flammable, avoid bat-
tery acid.
UP Polyester thermoset 90 (194) Same as above. Flammable
PS Polystyrene 80 (176) Avoid solvents. Flammable
ABS Acrylonitrile Butadiene Styrene
resin
80 (176) Avoid gasoline and solvents.
AES Acrylonitrile Ethylene Styrene 80 (176) Same as above.
PMMA Polymethyl Methacrylate 85 (185) Same as above.
AAS Acrylonitrile Acrylic Styrene 85 (185) Same as above.
AS Acrylonitrile Styrene 85 (185) Same as above.
EVA Polyvinyl Ethyl Acetate 90 (194) Same as above.
ASA Acrylonitrile Styrene Acrylate 100 (222) Same as above. Flammable
PPO/
PPE Polyphenylene Oxide/
Polyphenylene Ether
110 (230) Same as above.
PC Polycarbonate 120 (248) Same as above.
PAR Polyacrylate 180 (356) Same as above.
L-
LDPE Lenear Low Density PE
45 (100)Gasoline and most solvents are
harmless. Flammable
PUR Polyurethane 90 (194) Same as above.
TPU Thermoplastic Urethane 110 (230) Same as above.
PPC Polypropylene Composite 115 (239) Same as above. Flammable
POM Polyacetal 120 (248) Same as above. Avoid battery acid.
PBT+P
C Polybutylene Terephtha-
late+Polycarbonate
120 (248) Same as above.
Flammable
PA Polyamide (Nylon) 140 (284) Same as above. Avoid immersing in wa-
ter.
PBT Polybutylene Terephthalate 140 (284) Same as above.
FRP Fiber Reinforced Plastics 170 (338) Same as above. Avoid battery acid.
PET Polyethylene Terephthalate 180 (356) Same as above.
PEI Polyetherimide 200 (392) Same as above.
Revision: May 2010 2011 Versa

CO-28
< SERVICE INFORMATION >[MR18DE]
PRECAUTIONS
5. When the repair work is completed, return the ignition switch to the
″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of a ll control units using CONSULT-III.
Precaution for Liquid GasketINFOID:0000000005930801
REMOVAL OF LIQUID GASKET SEALING
• After removing nuts and bolts, separate the mating surface, using Tool and remove old liquid gasket sealing.
CAUTION:
Be careful not to damage the mating surfaces.
• Tap Tool to insert it (1), and then slide it by tapping on the side (2)
as shown.
• In areas where Tool is difficult to use, use plastic hammer to lightly tap the parts, to remove it.
CAUTION:
If for some unavoidable reason suitable tool such as screw-
driver is used, be careful no t to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Remove old liquid gasket adhering to the liquid gasket applica-
tion surface and the mating surface, using scraper.
• Remove liquid gasket completely from the groove of the liquid
gasket application surface, bolts, and bolt holes.
2. Thoroughly clean the mating surfaces and remove adhering moisture, grease and foreign materials.
3. Attach liquid gasket tube to Tool.
Use Genuine RTV Silicone Seal ant or equivalent. Refer to GI-42, "
Recommended Chemical Prod-
uct and Sealant".
4. Apply liquid gasket without breaks to the specif ied location with the specified dimensions.
• If there is a groove for the liquid gasket application, apply liquid gasket to the groove. Tool number : KV10111100 (J-37228)
WBIA0566E
Tool number : WS39930000 ( — )
PBIC0003E
WBIA0567E
Revision: May 2010
2011 Versa

CVT-1
TRANSMISSION/TRANSAXLE
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CVT
RE0F08B
SERVICE INFORMATION .. ..........................
5
INDEX FOR DTC ............................................ .....5
Alphabetical Index ............................................... ......5
DTC No. Index ..........................................................5
PRECAUTIONS ...................................................7
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
7
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ............................... ......
7
Precaution for On Board Diagnosis (OBD) System
of CVT and Engine ....................................................
8
Service After Replacing TCM and Transaxle As-
sembly .......................................................................
8
Removal and Installation Procedure for CVT Unit
Connector ............................................................ ......
9
Precaution ...............................................................10
Service Notice or Precaution ...................................11
ATFTEMP COUNT Conversion Table ....................11
PREPARATION .............................................. ....13
Special Service Tool ........................................... ....13
Commercial Service Tool ........................................13
CVT FLUID .........................................................14
Checking CVT Fluid ............................................ ....14
Changing CVT Fluid ................................................15
CVT Fluid Cooler Cleaning .....................................15
CVT SYSTEM ................................................. ....19
Cross-Sectional View - RE0F08B ....................... ....19
Control System .................................................... ....20
Hydraulic Control System ........................................21
TCM Function ...................................................... ....21
CAN Communication ...............................................22
Input/Output Signal of TCM .....................................22
Line Pressure and Secondary Pressure Control .....23
Shift Control ............................................................23
Lock-up and Select Control .....................................25
Control Valve ....................................................... ....25
ON BOARD DIAGNOSTIC (OBD) SYSTEM ....27
Introduction ..............................................................27
OBD-II Function for CVT System ............................27
One or Two Trip Detection Logic of OBD-II .............27
OBD-II Diagnostic Trouble Code (DTC) ..................27
Malfunction Indicator Lamp (MIL) ............................28
TROUBLE DIAGNOSIS ....................................30
DTC Inspection Priority Chart ..................................30
Fail-Safe ..................................................................30
How to Perform Trouble Diagnosis for Quick and
Accurate Repair .......................................................
31
CVT Electrical Parts Location ..................................36
Circuit Diagram ........................................................37
Inspections before Trouble Diagnosis .....................37
Road Test ................................................................41
Check before Engine Is Started ...............................42
Check at Idle ............................................................42
Cruise Test ..............................................................43
Vehicle Speed When Shifting Gears .......................45
TCM Terminal and Reference Value .......................46
CONSULT-III Function (TRANSMISSION) .......... ....48
Diagnosis Procedure without CONSULT-III ............55
U1000 CAN COMM CIRCUIT ...........................56
Description ........................................................... ....56
On Board Diagnosis Logic .......................................56
Possible Cause ........................................................56
DTC Confirmation Procedure ..................................56
Wiring Diagram - CVT - CAN ...................................57
Diagnosis Procedure ...............................................58
U1010 CONTROL UNIT (CAN) .........................59
Description ...............................................................59
On Board Diagnosis Logic .......................................59
Possible Cause ........................................................59
DTC Confirmation Procedure ..................................59
Diagnosis Procedure ...............................................59
Revision: May 2010 2011 Versa

P0506 ISC SYSTEMEC-353
< COMPONENT DIAGNOSIS > [HR16DE]
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P0506 ISC SYSTEM
DescriptionINFOID:0000000005930017
The ECM controls the engine idle speed to a specified level through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric thrott
le control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine idli ng speed. The crankshaft position sensor (POS) detects
the actual engine speed and sends a signal to the ECM.
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan
operation, etc.).
DTC LogicINFOID:0000000005930018
DTC DETECTION LOGIC
NOTE:
If DTC P0506 is displayed with ot her DTC, first perform the trouble diagnosis for the other DTC.
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.
If the target idle speed is ou t of the specified value, perform EC-26, "
IDLE AIR VOLUME LEARNING :
Special Repair Requirement", before conducting DTC Confirmation Procedure.
TESTING CONDITION:
• Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
• Always perform the test at a temperature above −10° C(14° F).
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch OFF and wait at least 10 seconds.
3. Start engine and run it for at least 1 minute at idle speed.
4. Check 1st trip DTC.
Is 1st trip DTC detected?
YES >> Go to EC-353, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000005930019
1.CHECK INTAKE AIR LEAK
1. Start engine and let it idle.
2. Listen for an intake air leak after the mass air flow sensor.
Is intake air leak detected?
YES >> Discover air leak location and repair.
NO >> GO TO 2.
2.REPLACE ECM
1. Stop engine.
2. Replace ECM.
DTC No. Trouble diagnosis name DTC detecting conditionPossible cause
P0506 Idle speed control system
RPM lower than expected The idle speed is less than the target idle
speed by 100 rpm or more. • Electric throttle control actuator
• Intake air leak
Revision: May 2010
2011 Versa

EC-646
< SERVICE INFORMATION >[MR18DE]
DTC P0011 IVT CONTROL
On Board Diagn osis Logic
INFOID:0000000006341768
FA I L - S A F E M O D E
ECM enters in fail-safe mode when the malfunction is detected.
DTC Confirmation ProcedureINFOID:0000000006341769
CAUTION:
Always drive at a safe speed.
NOTE:
•If DTC P0011 is displayed with DTC P0075, first perform trouble diagnosis for DTC P0075.
See EC-659
.
• 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, confi rm that battery voltage is between 10 V and 16 V at
idle.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III.
2. Start engine and warm it up to the normal operating temperature.
3. Maintain the following conditions for at least 6 consecutive seconds. Hold the accelerator pedal as steady as possible.
4. Let engine idle for 10 seconds.
5. If 1st trip DTC is detected, go to EC-647, "
Diagnosis Procedure".
If 1st trip DTC is not detected, go to next step.
6. Maintain the following conditions for at least 10 consecutive seconds.
7. If 1st trip DTC is detected, go to EC-647, "
Diagnosis Procedure".
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0011
0011 Intake valve timing control
performance There is a gap between angle of target and
phase-control angle degree. • Crankshaft position sensor (POS)
• Camshaft position
sensor (PHASE)
• Intake valve timing control solenoid valve
• Accumulation of debris to the signal pick-up portion of the camshaft
• Timing chain installation
• Foreign matter caught in the oil groove for in- take valve timing control
Detected items Engine operating condition in fail-safe mode
Intake valve timing control The signal is not energized to the solenoid valve and the valve control does not function
ENG SPEED1,200 - 2,000 rpm (A constant rotati on is maintained.)
COOLAN TEMP/S More than 60 °C (140 °F)
B/FUEL SCHDL More than 3.87 msec
Shift lever P or N position (A/T, CVT)
Neutral position (M/T)
ENG SPEED 1,200 - 3,175 rpm (A constant rotation is maintained.)
COOLAN TEMP/S More than 65 °C (149 °F)
Shift lever 1st or 2nd position
Driving location Driving vehicle uphill
(Increased engine load will help maintain the driving
conditions required for this test.)
Revision: May 2010
2011 Versa

DTC P0506 ISC SYSTEMEC-889
< SERVICE INFORMATION > [MR18DE]
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DTC P0506 ISC SYSTEM
DescriptionINFOID:0000000006342064
NOTE:
If DTC P0506 is displayed with ot
her DTC, first perform the trouble diagnosis for the other DTC.
The ECM controls the engine idle speed to a specified level through the fine adjustment of the air, which is let
into the intake manifold, by operating the electric thrott le control actuator. The operating of the throttle valve is
varied to allow for optimum control of the engine id ling speed. The ECM calculates the actual engine speed
from signals of crankshaft position sensor (POS) and camshaft position sensor (PHASE).
The ECM controls the electric throttle control actuator so that the engine speed coincides with the target value
memorized in the ECM. The target engine speed is the lowest speed at which the engine can operate steadily.
The optimum value stored in the ECM is determined by taking into consideration various engine conditions,
such as during warming up, deceleration, and engine load (air conditioner, power steering and cooling fan
operation, etc.).
On Board Diagnosis LogicINFOID:0000000006342065
DTC Confirmation ProcedureINFOID:0000000006342066
NOTE:
• If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
• If the target idle speed is ou t of the specified value, perform EC-580, "
Idle Air Volume Learning",
before conducting DTC Confirmation Procedure. For the target idle speed, refer to the EC-1035
.
TESTING CONDITION:
• Before performing the following procedure, confirm that battery voltage is more than 11 V at idle.
• Always perform the test at a temperature above −10° C (14° F).
1. Open engine hood.
2. Start engine and warm it up to normal operating temperature.
3. Turn ignition switch OFF and wait at least 10 seconds.
4. Start engine and run it for at least 1 minute at idle speed.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to EC-889, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000006342067
1.CHECK INTAKE AIR LEAK
1. Start engine and let it idle.
2. Listen for an intake air leak after the mass air flow sensor.
OK or NG
OK >> GO TO 2.
NG >> Discover air leak location and repair.
2.REPLACE ECM
1. Stop engine.
2. Replace ECM.
3. Perform initialization of NVIS (NATS) system and registration of all NVIS (NATS) ignition key IDs.
Refer to BL-247, "
ECM Re-communicating Function".
4. Perform EC-580, "
VIN Registration".
5. Perform EC-580, "
Accelerator Pedal Released Position Learning".
6. Perform EC-580, "
Throttle Valve Closed Position Learning".
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0506
0506 Idle speed control sys-
tem RPM lower than ex-
pected The idle speed is less than the target idle speed
by 100 rpm or more.
• Electric throttle control actuator
• Intake air leak
Revision: May 2010
2011 Versa