
SERVICE INFORMATION FOR ELECTRICAL INCIDENTGI-31
< SERVICE INFORMATION >
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Note in the illustration that there is an excessi ve 4.1 volt drop between the battery and the bulb.
MEASURING VOLTAGE DRO P — STEP-BY-STEP
The step-by-step method is most useful for isolating excessive drops in low voltage systems (such as those in
“Computer Controlled Systems”).
Circuits in the “Computer Controlled System” operate on very low amperage.
The (Computer Controlled) system oper ations can be adversely affected by any variation in resistance in the
system. Such resistance variation may be caused by poor connection, improper installation, improper wire
gauge or corrosion.
The step by step voltage drop test can identify a component or wire with too much resistance.
Control Unit Circuit Test
System Description:When the switch is ON, the control unit lights up the lamp.
INPUT-OUTPUT VOLTAGE CHART
SGI974
SAIA0258E
MGI034A
Revision: May 2010 2011 Versa

LT-1
ELECTRICAL
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CONTENTS
LIGHTING SYSTEM
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
HEADLAMP (FOR USA) .....................................5
Component Parts and Harness Connector Loca-
tion ...................................................................... ......
5
System Description ...................................................5
CAN COMMUNICATION SYSTEM DESCRIP-
TION .................................................................... ......
6
Schematic .................................................................7
Wiring Diagram .........................................................8
Terminal and Reference Value for BCM .................11
Terminal and Reference Value for IPDM E/R .........11
How to Perform Trouble Diagnosis .........................12
Preliminary Check ...................................................12
CONSULT-III Function (BCM) .................................12
CONSULT-III Function (IPDM E/R) .........................13
Headlamp High Beam Does Not Illuminate (Both
Sides) .................................................................. ....
15
Headlamp High Beam Does Not Illuminate (One
Side) .................................................................... ....
17
High Beam Indicator Lamp Does Not Illuminate .....18
Headlamp Low Beam Does Not Illuminate (Both
Sides) .................................................................. ....
19
Headlamp Low Beam Does Not Illuminate (One
Side) .................................................................... ....
21
Headlamps Do Not Turn OFF .................................22
Aiming Adjustment ..................................................23
Bulb Replacement ...................................................24
Removal and Installation .........................................25
Disassembly and Assembly ................................ ....25
HEADLAMP (FOR CANADA) - DAYTIME
LIGHT SYSTEM - ........................................... ....
27
Component Parts and Harness Connector Loca-
tion ....................................................................... ....
27
System Description ..................................................27
CAN Communication System Description ...............29
Schematic ................................................................30
Wiring Diagram - DTRL - .........................................31
Terminal and Reference Value for BCM ..................34
Terminal and Reference Value for IPDM E/R ...... ....34
How to Perform Trouble Diagnosis ..........................35
Preliminary Check ...................................................35
CONSULT-III Function (BCM) .................................35
CONSULT-III Function (IPDM E/R) ..................... ....35
Daytime Light Control Does Not Operate Properly
(High Beam Headlamps Operate Properly) .............
35
Aiming Adjustment ...................................................37
Bulb Replacement ...................................................38
Removal and Installation .........................................39
Disassembly and Assembly .....................................39
FRONT FOG LAMP ..........................................41
Component Parts and Harness Connector Loca-
tion ...........................................................................
41
System Description ..................................................41
CAN Communication System Description ...............42
Wiring Diagram - F/FOG - .......................................43
Terminal and Reference Value for BCM ..................44
Terminal and Reference Value for IPDM E/R ...... ....44
How to Proceed with Trouble Diagnosis ..................45
Preliminary Check ............................................... ....45
CONSULT-III Function (BCM) .................................45
CONSULT-III Function (IPDM E/R) ..................... ....45
Front Fog lamps Do Not Illuminate (Both Sides) .....45
Front Fog Lamp Does Not Illuminate (One Side) ....47
Aiming Adjustment ...................................................48
Bulb Replacement ...................................................49
Removal and Installation .........................................49
TURN SIGNAL AND HAZARD WARNING
LAMPS ..............................................................
50
Component Parts and Harness Connector Loca-
tion ...........................................................................
50
Revision: May 2010 2011 Versa

LT-2
System Description .................................................50
CAN Communication System Description ..............52
Schematic ............................................................ ...53
Wiring Diagram - TURN - ........................................54
Terminal and Reference Value for BCM .................57
How to Proceed with Trouble Diagnosis .................57
Preliminary Check ..................................................58
CONSULT-III Function (BCM) ................................58
Turn Signals Do Not Operate .................................58
Front Turn Signal Lamp Does Not Operate ............58
Rear Turn Signal Lamp Does Not Operate ............59
Hazard Warning Lamp Does Not Operate But
Turn Signal Lamp Operates ...................................
60
Turn Signal Indicator Lamp Does Not Operate ......61
Bulb Replacement for Front Turn Signal Lamp ......61
Bulb Replacement for Rear Turn Signal Lamp .......61
Removal and Installation of Front Turn Signal
Lamp .......................................................................
61
Removal and Installation of Rear Turn Signal
Lamp .......................................................................
61
LIGHTING AND TURN SIGNAL SWITCH .........62
Removal and Installation ..................................... ...62
HAZARD SWITCH .............................................63
Removal and Installation ..................................... ...63
COMBINATION SWITCH ..................................64
Wiring Diagram - COMBSW - .............................. ...64
Combination Switch Reading Function ...................64
Terminal and Reference Value for BCM .................65
CONSULT-III Function (BCM) ................................65
Combination Switch Inspection ..............................65
Removal and Installation ..................................... ...67
STOP LAMP ......................................................68
Wiring Diagram - STOP/L .................................... ...68
Wiring Diagram - STOP/L .......................................69
Bulb Replacement (High-Mounted Stop Lamp) ......69
Bulb Replacement (Rear Combination Lamp) ........70
Removal and Installation (High-Mounted Stop
Lamp) .....................................................................
70
Removal and Installation (Rear Combination
Lamp) .................................................................. ...
71
BACK-UP LAMP ................................................72
Wiring Diagram - BACK/L - .................................. ...72
Bulb Replacement ..................................................72
Removal and Installation ........................................73
PARKING, LICENSE PLATE AND TAIL
LAMPS ...............................................................
74
Component Parts and Harness Connector Loca-
tion ....................................................................... ...
74
System Description .................................................74
CAN Communication System Description ........... ...75
Schematic ...............................................................76
Wiring Diagram - TAIL/L - .......................................77
Terminal and Reference Value for BCM .............. ...80
Terminal and Reference Value for IPDM E/R .........80
How to Proceed with Trouble Diagnosis .................81
Preliminary Check ...................................................81
CONSULT-III Function (BCM) ............................. ...81
CONSULT-III Function (IPDM E/R) ........................81
Parking, License Plate and Tail Lamps Do Not Il-
luminate ..................................................................
81
Parking, License Plate and Tail Lamps Do Not
Turn OFF (After Approx. 10 Minutes) .....................
84
Bulb Replacement ................................................ ...84
Removal and Installation .........................................85
REAR COMBINATION LAMP ........................ ...87
Component .......................................................... ...87
Bulb Replacement ...................................................87
Removal and Installation .........................................88
Disassembly and Assembly ................................. ...88
INTERIOR LAMP ...............................................90
Map Lamp ............................................................ ...90
Luggage Room Lamp, Hatch Back .........................90
Trunk Room Lamp, Sedan ......................................91
Vanity Mirror Lamp ..................................................91
INTERIOR ROOM LAMP ...................................93
Component Parts and Harness Connector Loca-
tion ....................................................................... ...
93
System Description .................................................93
Schematic ...............................................................97
Wiring Diagram - INT/L - .........................................98
Terminal and Reference Value for BCM ...............102
How to Proceed with Trouble Diagnosis ...............102
Preliminary Check .................................................103
CONSULT-III Function (BCM) ............................. .103
Interior Room Lamp Control Does Not Operate
(With Map Lamp) ..................................................
104
Interior Room Lamp Control Does Not Operate
(Without Map Lamp) .............................................
106
Bulb Replacement .................................................107
Removal and Installation .......................................108
ILLUMINATION .............................................. ..109
System Description .............................................. .109
CAN Communication System Description ............110
Schematic .............................................................111
Wiring Diagram - ILL - ...........................................112
BULB SPECIFICATIONS ............................... ..116
Headlamp ............................................................. .116
Exterior Lamp ........................................................116
Interior Lamp/Illumination .....................................
Revision: May 2010 2011 Versa

LT-16
< SERVICE INFORMATION >
HEADLAMP (FOR USA)
Without CONSULT-III
1. Start auto active test. Refer to PG-20, "
Auto Active Test" .
2. Make sure headlamp high beam operates.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK IPDM E/R
1. Select “IPDM E/R” on CONSULT-III. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Make sure “HL HI REQ” turns ON when lighting switch is in high position.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R" .
NG >> Replace BCM. Refer to BCS-19, "
Removal and Installation of BCM" .
4.HEADLAMP HIGH BEAM FUSE INSPECTION
Inspect 10A fuse No. 34 (RH) and fuse No. 35 (LH).
OK or NG
OK >> GO TO 5.
NG >> Repair harness.
5.BULB INSPECTION
Inspect inoperative headlamp bulbs.
OK or NG
OK >> GO TO 6.
NG >> Replace headlamp bulb. LT-24, "
Bulb Replacement" .
6.CHECK HEADLAMP INPUT SIGNAL
With CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect headlamp connector.
3. Select “IPDM E/R” on CONSULT-III. Select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
4. Select “EXTERNAL LAMPS” on “SELECT TEST ITEM” screen.
5. Touch “HI” screen.
6. When headlamp high beam is operating, check voltage between headlamp harness connector and ground (Headlamp high beam
repeats ON–OFF every 2 seconds).
Without CONSULT-III
1. Turn ignition switch OFF.
2. Disconnect headlamp connector.
3. Start auto active test. Refer to PG-20, "
Auto Active Test" .
Headlamp high beam should operate
(Headlamp high beam repeats ON–OFF every 2 sec-
onds).
Headlamp high beam should operate.
When lighting switch is high
position
: HL HI REQ ON
Te r m i n a l
Vo l ta g e
(+)
(−)
Headlamp connector Terminal
RH E26 1Ground Battery voltage
LH E25
PKIC0960E
Revision: May 2010 2011 Versa

HEADLAMP (FOR USA)LT-17
< SERVICE INFORMATION >
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4. When headlamp high beam is operating, check voltage between headlamp harness connector and ground.
OK or NG
OK >> GO TO 7.
NG >> GO TO 8.
7.CHECK HEADLAMP GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between headlamp harness connector and ground.
OK or NG
OK >> Check front combination lamp connector for damage or poor connection. Repair as necessary.
NG >> Repair harness.
8.CHECK HEADLAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector (A) and headlamp harness connector (B).
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector.
Headlamp High Beam Does No t Illuminate (One Side)INFOID:0000000005929040
1.HEADLAMP HIGH BEAM FUSE INSPECTION
Inspect 10A fuse No. 34 (RH) or fuse No. 35 (LH).
OK or NG
OK >> GO TO 2.
NG >> Repair harness.
2.CHECK BULB
Check headlamp bulb which does not illuminate.
OK or NG
OK >> GO TO 3.
NG >> Replace bulb. Refer to LT-24, "
Bulb Replacement" .
Te r m i n a l
Vo l ta g e
(+)
(−)
Headlamp connector Terminal
RH E26 1Ground Battery voltage
LH E25
Headlamp connector Terminal
Ground Continuity
RH E26 2Y es
LH E25
PKIC0961E
Circuit AB
Continuity
Connector Terminal Connector Terminal
RH E47 56 E26
1 Yes
LH 55 E25
WKIA5470E
Revision: May 2010 2011 Versa

LT-18
< SERVICE INFORMATION >
HEADLAMP (FOR USA)
3.CHECK HEADLAMP INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect headlamp connector.
3. Lighting switch is turned to HIGH position.
4. Check voltage between headlamp harness connector and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.
4.CHECK HEADLAMP GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between headlamp harness connector and ground.
OK or NG
OK >> Check connecting condition headlamp harness connec- tor.
NG >> Repair harness or connector.
5.CHECK HEADLAMP CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between IPDM E/R harness connector (A) and
headlamp harness connector (B).
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector.
High Beam Indicator Lam p Does Not IlluminateINFOID:0000000005929041
1.BULB INSPECTION
Inspect CAN communication system. Refer to LAN-7
.
OK or NG
OK >> Replace combination meter. Refer to DI-20, "Removal and Installation" .
NG >> Repair as necessary.
Te r m i n a l
Voltag e
(+)
(−)
Headlamp connector Terminal
RH E26 1Ground Battery voltage
LH E25
WKIA5552E
Headlamp connector Terminal
Ground Continuity
RH E26 2Y es
LH E25
PKIC0961E
Circuit AB
Continuity
Connector Terminal Connector Terminal
RH E47 56 E26
1Yes
LH 55 E25
WKIA5470E
Revision: May 2010 2011 Versa

HEADLAMP (FOR USA)LT-19
< SERVICE INFORMATION >
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Headlamp Low Beam Does No t Illuminate (Both Sides)INFOID:0000000005929042
1.CHECK COMBINATION SWITCH (LIGHTING AND TURN SIGNAL SWITCH) INPUT SIGNAL
With CONSULT-III
1. Select “BCM” on CONSULT-III. Select “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen. Make sure that “HEAD LAMP SW 1” and
“HEAD LAMP SW 2” turns ON-OFF li nked with operation of lighting switch.
Without CONSULT-III
Refer to LT-65, "
Combination Switch Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Check combination switch (lighting and turn signal switch). Refer to LT-65, "
Combination Switch
Inspection" .
2.CHECK HEADLAMP ACTIVE TEST
With CONSULT-III
1. Select “IPDM E/R” on CONSUL T-III. Select “ACTIVE TEST” on “SELECT DIAG MODE” screen.
2. Select “EXTERNAL LAMPS” on “SELECT TEST ITEM” screen.
3. Touch “LO” screen.
4. Make sure headlamp low beam operates.
Without CONSULT-III
1. Start auto active test. Refer to PG-20, "
Auto Active Test" .
2. Make sure headlamp low beam operates.
OK or NG
OK >> GO TO 3.
NG >> GO TO 4.
3.CHECK IPDM E/R
1. Select “IPDM E/R” on CONSUL T-III. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Make sure “HL LO REQ” turns ON when lighting switch is in 2ND position.
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and Installation of IPDM E/R" .
NG >> Replace BCM. Refer to BCS-19, "
Removal and Installation of BCM" .
4.HEADLAMP LOW BEAM FUSE INSPECTION
Inspect 15A fuse No. 40 (LH) and fuse No. 41 (RH).
OK or NG
OK >> GO TO 5.
NG >> Repair harness.
5.BULB INSPECTION
Inspect inoperative headlamp bulbs.
OK or NG
OK >> GO TO 6.
NG >> Replace headlamp bulb. LT-24, "
Bulb Replacement" .
When lighting switch is 2ND
position
: HEAD LAMP SW 1 ON
: HEAD LAMP SW 2 ON
Headlamp low beam should operate.
Headlamp low beam should operate.
When lighting switch is 2ND
position: HL LO REQ ON
Revision: May 2010
2011 Versa

HEADLAMP (FOR USA)LT-21
< SERVICE INFORMATION >
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3. Check continuity between IPDM E/R harness connector (A) and headlamp harness connector (B).
OK or NG
OK >> Replace IPDM E/R. Refer to PG-28, "Removal and
Installation of IPDM E/R" .
NG >> Repair harness or connector.
Headlamp Low Beam Does Not Illuminate (One Side)INFOID:0000000005929043
1.HEADLAMP LOW BEAM FUSE INSPECTION
Inspect 15A fuse No. 40 (LH) and fuse No. 41 (RH).
OK or NG
OK >> GO TO 2.
NG >> Repair harness.
2.CHECK BULB
Check bulb of headlamp which does not illuminate.
OK or NG
OK >> GO TO 3.
NG >> Replace bulb. Refer to LT-24, "
Bulb Replacement" .
3.CHECK HEADLAMP INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect headlamp connector.
3. Lighting switch is turned to 2ND position.
4. Check voltage between headlamp harness connector and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 5.
4.CHECK HEADLAMP GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between headlamp harness connector and ground.
OK or NG
OK >> Check condition of headlamp harness connector.
NG >> Repair harness or connector.
Circuit AB
Continuity
Connector Terminal Connector Terminal
RH E47 54 E26
3Yes
LH 52 E25
WKIA5471E
Te r m i n a l
Vo l ta g e
(+)
(−)
Headlamp connector Terminal
RH E26
3 Ground Battery voltage
LH E25
WKIA5551E
Headlamp connector Terminal
Ground Continuity
RH E26
2Y es
LH E25
PKIC0961E
Revision: May 2010 2011 Versa