
DIAGNOSIS SYSTEM (BCM) (WITHOUT INTELLIGENT KEY SYSTEM)DEF-9
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (BCM) (WITHO UT INTELLIGENT KEY SYSTEM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)INFOID:0000000012542309
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
Direct Diagnostic Mode Description
ECU Identification The BCM part number is displayed.
Self Diagnostic Result The BCM self diagnostic results are displayed.
Data Monitor The BCM input/output data is displayed in real time.
Active Test The BCM activates outputs to test components.
Work support The settings for BCM functions can be changed.
Configuration • The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication is displayed.
System Sub System Direct Diagnostic Mode
ECU Identification
Self Diagnostic Result
Data Monitor
Active Test
Work support
Configuration
CAN DIAG SUPPORT MNTR
Door lock
DOOR LOCK ×××
Rear window defogger REAR DEFOGGER ××
Warning chime BUZZER ××
Interior room lamp timer INT LAMP ×××
Remote keyless entry system MULTI REMOTE ENT ×××
Exterior lamp HEAD LAMP ×××
Wiper and washer WIPER ×××
Turn signal and hazard warning lamps FLASHER ××
Air conditioner AIR CONDITIONER ×
Combination switch COMB SW ×
BCM BCM× × ×××
Immobilizer IMMU ×××
Interior room lamp battery saver BATTERY SAVER ×××
Vehicle security system THEFT ALM ××
RAP system RETAINED PWR ××
Signal buffer system SIGNAL BUFFER ×
TPMS AIR PRESSURE MONITOR ××××
Panic alarm system PANIC ALARM ×
Revision: August 2015 2016 Versa Note
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DEF-24
< DTC/CIRCUIT DIAGNOSIS >
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
REAR WINDOW DEFOGGER POWER SUPPLY AND GROUND CIRCUIT
DescriptionINFOID:0000000012431771
Heats the heating wire with the power supply from the rear window defogger relay to prevent the rear window
from fogging up.
Component Function CheckINFOID:0000000012431772
1. CHECK REAR WINDOW DEFOGGER
Check that the heating wire of rear window defogger is heated when turning the rear window defogger switch
ON.
Is the inspection result normal?
YES >> Rear window defogger is OK.
NO >> Refer to DEF-24, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000012431773
Regarding Wiring Diagram information, refer to DEF-12, "Wiring Diagram".
1. CHECK FUSES
Check if any of the following fuses in fuse block (J/B) are blown.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Replace the blown fuse after repairing the affected circuit.
2. CHECK REAR WINDOW DEFOGGER POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between rear window defogger relay connector and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Check the following: • Rear window defogger relay.
• Battery power supply circuit.
3. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch ON.
2. Check voltage between rear window defogger connector and ground.
COMPONENT PARTS AMPEREFUSE NO.
Fuse block (J/B) 20A
9
20A 11
Te r m i n a l s
Condition of rear window de-fogger switch Voltage (V)
(Approx.)
(+)
(–)
Rear window defogger relay
connector Te r m i n a l
M14 3, 6Ground ON Battery
voltage
OFF 0
Revision: August 2015 2016 Versa Note
cardiagn.com

DRIVER SIDE DOOR MIRROR DEFOGGER
DEF-27
< DTC/CIRCUIT DIAGNOSIS >
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Check intermittent incident.
Refer to GI-42, "
Intermittent Incident".
Is the inspection result normal?
YES >> Check the following. • Battery power supply circuit.
• Fuse block (J/B).
NO >> Repair or replace the malfunctioning parts.
Component InspectionINFOID:0000000012431778
1. CHECK DOOR MIRROR DEFOGGER LH
1. Turn ignition switch OFF.
2. Disconnect door mirror LH.
3. Check continuity between door mirror terminals.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace door mirror LH. Refer to MIR-17, "
Removal and Installation".
Terminal Continuity
45 Y es
Revision: August 2015 2016 Versa Note
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PASSENGER SIDE DOOR MIRROR DEFOGGERDEF-29
< DTC/CIRCUIT DIAGNOSIS >
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Check intermittent incident.
Refer to GI-42, "
Intermittent Incident".
Is the inspection result normal?
YES >> Check the following. • Battery power supply circuit.
• Fuse block (J/B).
NO >> Repair or replace the malfunctioning parts.
Component InspectionINFOID:0000000012431782
1. CHECK DOOR MIRROR DEFOGGER RH
1. Turn ignition switch OFF.
2. Disconnect door mirror RH.
3. Check continuity between door mirror terminals.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace door mirror RH. Refer to MIR-17, "
Removal and Installation".
Terminal Continuity
45 Y es
Revision: August 2015 2016 Versa Note
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DEF-32
< SYMPTOM DIAGNOSIS >
BOTH DOORS MIRROR DEFOGGER DON’T OPERATE BUT REAR WINDOW
DEFOGGER OPERATES
BOTH DOORS MIRROR DEFOGGER DON’T OPERATE BUT REAR WIN-
DOW DEFOGGER OPERATES
Diagnosis ProcedureINFOID:0000000012431785
1. CHECK DOOR MIRROR DEFOGGER FUSE
Check if the following fuse in fuse block (J/B) is blown.
Is the inspection result normal?
YES >> GO TO 2.
NO >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2. CHECK BOTH DOOR MIRROR DEFOGGER
1. Check door mirror LH. Refer to DEF-26, "
Component Function Check".
2. Check door mirror RH. Refer to DEF-28, "
Component Function Check".
Is the inspection result normal?
YES >> Check intermittent incident. Refer to GI-42, "Intermittent Incident".
NO >> Repair or replace the malfunctioning parts.
COMPONENT PARTS AMPEREFUSE NO.
Fuse block (J/B) 10A1
Revision: August 2015 2016 Versa Note
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DLK-1
BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY
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SECTION DLK
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CONTENTS
DOOR & LOCK
WITH INTELLIGENT KEY SYSTEM
PRECAUTION ....... ........................................
9
PRECAUTIONS .............................................. .....9
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
9
Procedure without Cowl Top Cover .......................9
Precaution for Servicing Doors and Locks .......... ......9
Precaution for Work ............................................ ....10
PREPARATION ...........................................11
PREPARATION .............................................. ....11
Special Service Tools .......................................... ....11
Commercial Service Tools ......................................12
SYSTEM DESCRIPTION .............................13
COMPONENT PARTS ................................... ....13
INTELLIGENT KEY SYSTEM ...................................13
INTELLIGENT KEY SYSTEM : Component Parts
Location ............................................................... ....
13
INTELLIGENT KEY SYSTEM : Inside Key Anten-
na (Instrument Center) ............................................
15
INTELLIGENT KEY SYSTEM : Inside Key Anten-
na (Console) ............................................................
16
INTELLIGENT KEY SYSTEM : Inside Key Anten-
na (Trunk Room) .....................................................
16
INTELLIGENT KEY SYSTEM : Outside Key An-
tenna (Rear Bumper) ..............................................
16
INTELLIGENT KEY SYSTEM : Outside Key An-
tenna (Driver Side) ..................................................
16
INTELLIGENT KEY SYSTEM : Outside Key An-
tenna (Passenger Side) ..........................................
17
INTELLIGENT KEY SYSTEM : Front Door Lock
Assembly (Driver Side) ...........................................
17
INTELLIGENT KEY SYSTEM : Remote Keyless
Entry Receiver .........................................................
17
INTELLIGENT KEY SYSTEM : Intelligent Key
Warning Buzzer ................................................... ....
17
INTELLIGENT KEY SYSTEM : Back Door Lock
Assembly .................................................................
18
INTELLIGENT KEY SYSTEM : Door Lock and Un-
lock Switch ........................................................... ....
18
INTELLIGENT KEY SYSTEM : Front Door Re-
quest Switch (Driver Side) .......................................
18
INTELLIGENT KEY SYSTEM : Front Door Re-
quest Switch (Passenger Side) ...............................
18
INTELLIGENT KEY SYSTEM : Door Switch ...........19
INTELLIGENT KEY SYSTEM : Back Door Re-
quest Switch ............................................................
19
SYSTEM (POWER DOOR LOCK SYSTEM) ....20
System Diagram .................................................. ....20
System Description ..................................................20
SYSTEM (INTELLIGENT KEY SYSTEM) .........22
INTELLIGENT KEY SYSTEM ......................... ...........22
INTELLIGENT KEY SYSTEM : System Descrip-
tion ....................................................................... ....
22
DOOR LOCK FUNCTION ...................................... ....23
DOOR LOCK FUNCTION : System Description .....23
REMOTE KEYLESS ENTRY FUNCTION ..................25
REMOTE KEYLESS ENTRY FUNCTION : Sys-
tem Description .................................................... ....
25
KEY REMINDER FUNCTION ................................ ....26
KEY REMINDER FUNCTION : System Descrip-
tion ...........................................................................
27
WARNING FUNCTION .......................................... ....27
WARNING FUNCTION : System Description ..........27
DIAGNOSIS SYSTEM (BCM) ...........................30
COMMON ITEM ..................................................... ....30
COMMON ITEM : CONSULT Function (BCM -
COMMON ITEM) .....................................................
30
Revision: August 2015 2016 Versa Note
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DLK-2
DOOR LOCK .............................................................31
DOOR LOCK : CONSULT Function (BCM -
DOOR LOCK) .........................................................
31
INTELLIGENT KEY ................................................ ...31
INTELLIGENT KEY : CONSULT Function (BCM -
INTELLIGENT KEY) ...............................................
31
ECU DIAGNOSIS INFORMATION ........... ...35
BCM ................................................................ ...35
List of ECU Reference ......................................... ...35
WIRING DIAGRAM .....................................36
POWER DOOR LOCK SYSTEM .................... ...36
Wiring Diagram .................................................... ...36
INTELLIGENT KEY SYSTEM ............................46
Wiring Diagram .................................................... ...46
BASIC INSPECTION ...................................61
DIAGNOSIS AND REPAIR WORK FLOW ..... ...61
Work Flow ............................................................ ...61
INSPECTION AND ADJUSTMENT ...................64
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT (BCM) ......................................... ...
64
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT (BCM) : Description ................. ...
64
ADDITIONAL SERVICE WHEN REPLACING
CONTROL UNIT (BCM) : Work Procedure ......... ...
64
DTC/CIRCUIT DIAGNOSIS ...................... ...65
B2621 INSIDE ANTENNA .............................. ...65
DTC Logic ............................................................ ...65
Diagnosis Procedure ..............................................65
B2622 INSIDE ANTENNA .................................67
DTC Logic ............................................................ ...67
Diagnosis Procedure ..............................................67
B2623 INSIDE ANTENNA .................................69
DTC Logic ............................................................ ...69
Diagnosis Procedure ..............................................69
B2626 OUTSIDE ANTENNA .............................71
DTC Logic ............................................................ ...71
Diagnosis Procedure ..............................................71
B2627 OUTSIDE ANTENNA .............................73
DTC Logic ............................................................ ...73
Diagnosis Procedure ..............................................73
B2628 OUTSIDE ANTENNA .............................75
DTC Logic ............................................................ ...75
Diagnosis Procedure ..............................................75
POWER SUPPLY AND GROUND CIRCUIT .....77
BCM ........................................................................ ...77
BCM : Diagnosis Procedure ....................................77
COMBINATION METER BUZZER ....................78
Component Function Check ............................... ...78
Diagnosis Procedure ...............................................78
DOOR LOCK ACTUATOR ................................79
DRIVER SIDE ......................................................... ...79
DRIVER SIDE : Component Function Check ........79
DRIVER SIDE : Diagnosis Procedure .....................79
PASSENGER SIDE ...................................................80
PASSENGER SIDE :
Component Function Check ............................... ...
80
PASSENGER SIDE : Diagnosis Procedure ............80
REAR LH ................................................................ ...81
REAR LH : Component Function Check ...............81
REAR LH : Diagnosis Procedure ............................81
REAR RH ................................................................ ...82
REAR RH : Component Function Check ...............82
REAR RH : Diagnosis Procedure ...........................82
BACK DOOR .......................................................... ...83
BACK DOOR : Description .....................................83
BACK DOOR : Component Function Check .........83
BACK DOOR : Diagnosis Procedure ......................84
BACK DOOR LOCK ACTUATOR RELAY .......86
Description ........................................................... ...86
Component Function Check ...................................86
Diagnosis Procedure ...............................................86
Component Inspection ............................................87
DOOR LOCK AND UNLOCK SWITCH .............89
Component Function Check ............................... ...89
Diagnosis Procedure ...............................................89
Component Inspection ............................................90
UNLOCK SENSOR ............................................92
Component Function Check ............................... ...92
Diagnosis Procedure ...............................................92
Component Inspection ............................................93
DOOR REQUEST SWITCH ...............................94
Component Function Check ..................................94
Diagnosis Procedure ...............................................94
Component Inspection ............................................95
BACK DOOR REQUEST SWITCH ...................96
Description ........................................................... ...96
Component Function Check ..................................96
Diagnosis Procedure ...............................................96
Component Inspection ............................................97
DOOR SWITCH .................................................98
Component Function Check ............................... ...98
Diagnosis Procedure ...............................................98
Component Inspection ............................................99
Revision: August 2015 2016 Versa Note
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DLK-3
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HAZARD FUNCTION ..................................... ..101
Component Function Check .............................. ..101
Diagnosis Procedure .............................................101
INTELLIGENT KEY WARNING BUZZER ........102
Component Function Check .............................. ..102
Diagnosis Procedure .............................................102
Component Inspection ..........................................103
INTELLIGENT KEY ..........................................104
Component Function Check ................................104
Diagnosis Procedure .............................................104
KEY WARNING LAMP .....................................105
Component Function Check .............................. ..105
Diagnosis Procedure .............................................105
REMOTE KEYLESS ENTRY RECEIVER ........106
Component Function Check .............................. ..106
Diagnosis Procedure (For USA) ............................106
Diagnosis Procedure (For Canada) ......................107
SHIFT P WARNING LAMP ..............................111
Component Function Check .............................. ..111
Diagnosis Procedure .............................................111
SYMPTOM DIAGNOSIS ............................112
DOOR DOES NOT LOCK/UNLOCK WITH
DOOR LOCK AND UNLOCK SWITCH .......... ..
112
ALL DOOR ............................................................ ..112
ALL DOOR : Description .......................................112
ALL DOOR : Diagnosis Procedure ........................112
DRIVER SIDE ........................................................ ..112
DRIVER SIDE : Description ..................................112
DRIVER SIDE : Diagnosis Procedure ...................112
PASSENGER SIDE .................................................112
PASSENGER SIDE : Description ....................... ..113
PASSENGER SIDE : Diagnosis Procedure ..........113
REAR LH ............................................................... ..113
REAR LH : Description ..........................................113
REAR LH : Diagnosis Procedure ..........................113
REAR RH ............................................................... ..113
REAR RH : Description .........................................113
REAR RH : Diagnosis Procedure ..........................113
DOOR DOES NOT LOCK/UNLOCK WITH
DRIVER SIDE DOOR LOCK KNOB OR DOOR
KEY CYLINDER ...............................................
115
Diagnosis Procedure .............................................115
DOOR DOES NOT LOCK/UNLOCK WITH
DOOR REQUEST SWITCH ..............................
116
ALL DOOR REQUEST SWITCHES ...................... ..116
ALL DOOR REQUEST SWITCHES : Description ..116
ALL DOOR REQUEST SWITCHES : Diagnosis
Procedure ............................................................ ..
116
DRIVER SIDE DOOR REQUEST SWITCH ........... ..116
DRIVER SIDE DOOR REQUEST SWITCH : De-
scription .................................................................
117
DRIVER SIDE DOOR REQUEST SWITCH : Diag-
nosis Procedure .....................................................
117
PASSENGER SIDE DOOR REQUEST SWITCH .. ..117
PASSENGER SIDE DOOR REQUEST SWITCH :
Description .............................................................
117
PASSENGER SIDE DOOR REQUEST SWITCH :
Diagnosis Procedure .............................................
117
DOOR DOES NOT LOCK/UNLOCK WITH IN-
TELLIGENT KEY ............................................
118
Diagnosis Procedure .............................................118
IGNITION POSITION WARNING FUNCTION
DOES NOT OPERATE ....................................
119
Diagnosis Procedure .............................................119
AUTO DOOR LOCK OPERATION DOES NOT
OPERATE .......................................................
120
Diagnosis Procedure .............................................120
VEHICLE SPEED SENSING AUTO LOCK
OPERATION DOES NOT OPERATE .............
121
Diagnosis Procedure .............................................121
IGN OFF INTERLOCK DOOR UNLOCK
FUNCTION DOES NOT OPERATE ................
122
Diagnosis Procedure .............................................122
HAZARD AND BUZZER REMINDER DOES
NOT OPERATE ...............................................
123
Diagnosis Procedure .............................................123
KEY REMINDER FUNCTION DOES NOT OP-
ERATE .............................................................
124
Diagnosis Procedure .............................................124
OFF POSITION WARNING DOES NOT OP-
ERATE .............................................................
125
Diagnosis Procedure .............................................125
P POSITION WARNING DOES NOT OPER-
ATE ..................................................................
126
Diagnosis Procedure .............................................126
ACC WARNING DOES NOT OPERATE ........128
Diagnosis Procedure .............................................128
TAKE AWAY WARNING DOES NOT OPER-
ATE ..................................................................
129
Diagnosis Procedure .............................................129
INTELLIGENT KEY LOW BATTERY WARN-
ING DOES NOT OPERATE ............................
131
Diagnosis Procedure .............................................131
Revision: August 2015 2016 Versa Note
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