
DIAGNOSIS SENSOR UNITSRC-21
< ECU DIAGNOSIS INFORMATION >
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Flash Code IndexINFOID:0000000012430609
WARNING LAMP FLASH CODE CHART
OCCUPANT DETECTION SENSOR UNIT [UNIT FAIL]
B00A0The OCS control unit is malfunctioning. Refer to
SRC-84, "Diag-
nosis Procedure".
OCCUPANT DETECTION SENSOR UNIT [NO DATA]
OCCUPANT DETECTION SENSOR UNIT [UNDEFINED]
OCCUPANT DETECTION SENSOR UNIT [RESET FAIL]
OCCUPANT DETECTION SENSOR UNIT [COMM FAIL] Communication between the OCS control
unit and the air bag diagnosis sensor unit is
interrupted.
OCCUPANT DETECTION SENSOR [UNIT FAIL] The OCS sensor is malfunctioning.
OCCUPANT DETECTION SENSOR [POWER FAIL] The OCS sensor circuit is malfunctioning.
CONTROL UNIT [UNIT FAIL] B14XX
Air bag diagnosis sensor unit is malfunction-
ing. Refer to SRC-86, "
Diag-
nosis Procedure".
PASS A/B INDCTR CKT [UNIT MALFUNC]
B00D2Malfunction in front passenger air bag ON
indicator circuit.
Refer to SRC-88, "
Diag-
nosis Procedure".
PASS A/B INDCTR CKT [GND-SHORT] Front passenger air bag ON indicator circuit
is shorted to ground.
PASS A/B INDCTR CKT [VB-SHORT] Front passenger air bag ON indicator circuit
is shorted to power supply circuit.
PASS A/B INDCTR CKT [OPEN] Front passenger air bag ON indicator circuit
is open.
PASS A/B INDCTR CKT [PWE-SHORT/OPEN] Front passenger air bag ON indicator circuit
is open or shorted to power supply circuit.
PASSENGER AIRBAG INDICATOR CIRCUIT [FAIL]
B00D5Front passenger air bag OFF indicator is
malfunctioning.
Refer to SRC-90, "
Diag-
nosis Procedure".
PASSENGER AIRBAG INDICATOR CIRCUIT [OPEN] Front passenger air bag OFF indicator cir-
cuit is open.
PASSENGER AIRBAG INDICATOR CIRCUIT [VB-SHORT] Front passenger air bag OFF indicator is
shorted to a power supply circuit.
PASSENGER AIRBAG INDICATOR CIRCUIT [GND-SHORT] Front passenger air bag OFF indicator is
shorted to ground.
IGN VOLTAGE [LOW] B142AIgnition voltage to the air bag diagnosis sen-
sor unit is low.
Refer to SRC-92, "
Diag-
nosis Procedure".
IGN VOLTAGE [HIGH] Ignition voltage to the air bag diagnosis sen-
sor unit is high.
CAN COMMUNICATION FAILURE U1000 CAN system communication failure. Refer to
SRC-94, "
Diag-
nosis Procedure".
CAN COMMUNICATION FAILURE [CONTROL UNIT] U1010
CAN system (control unit) failure.
Refer to SRC-95, "
Diag-
nosis Procedure".
FRONTAL COLLISION DETECTION B1421 Frontal collision detected. Driver and/or
front passenger air bag modules are de-
ployed.Refer to SR-5, "
For
Frontal Collision".
SIDE COLLISION DETECTION B1422Side collision detected. Curtain air bag mod-
ule and seat belt pre-tensioner are de-
ployed. Refer to SR-7, "
For Side
and Rollover Collision".
CONSULT name
DTCDTC detecting condition Repair order
Revision: August 2015 2016 Versa Note
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SRC-22
< ECU DIAGNOSIS INFORMATION >
DIAGNOSIS SENSOR UNIT
How to read flash codes
1. Put the vehicle in Diagnosis Mode. Refer to SRC-14, "On Board Diagnosis Function".
2. All codes are proceded by a seven second "holding" flash.
3. Identify how many primary flashes are display ed as well as the length of each primary flash.
4. Refer to the tables and examples below to determine which SRS subsystem the code belongs to.
5. Count the short secondary flashes that follow the primary flashes.
6. Match the correct flashing pattern to the malfunctioning component and perform the Diagnosis Procedure.
Refer to the illustrations below fo r an example of each flashing pattern.
Front subsystem
Side subsystem
AWHIA0430GB
Flashes
(Primary) Flash Length
(seconds) Flashes
(Secondary) Malfunctioning Component or Circuit
Reference
21 .5 1 Driver air bag module
SRC-43, "
Diagnosis Proce-
dure"
2 Passenger air bag moduleSRC-45, "Diagnosis Proce-
dure"
3 Front LH seat belt pre-tensioner
SRC-55, "Diagnosis Proce-
dure"
4 Front RH seat belt pre-tensionerSRC-57, "Diagnosis Proce-
dure"
AWHIA0431GB
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2016 Versa Note
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DIAGNOSIS SENSOR UNITSRC-23
< ECU DIAGNOSIS INFORMATION >
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Air bag subsystem
Sensor subsystem
Flashes
(Primary) Flash Length
(seconds) Flashes
(Secondary) Malfunctioning Component or Circuit
Reference
31 .5 1 Front LH side air bag module
SRC-47, "
Diagnosis Proce-
dure"
2 Front RH side air bag moduleSRC-49, "Diagnosis Proce-
dure"
3 LH side curtain air bag module
SRC-51, "Diagnosis Proce-
dure"
4 RH side curtain air bag moduleSRC-53, "Diagnosis Proce-
dure"
AWHIA0432GB
Flashes
(Primary) Flash Length
(seconds) Flashes
(Secondary) Malfunctioning Component or Circuit
Reference
13 1 Collision detection
SRC-96, "
Diagnosis Proce-
dure"
2 Air bag diagnosis sensor unitSRC-86, "Diagnosis Proce-
dure"
3 Passenger air bag OFF indicator
SRC-90, "Diagnosis Proce-
dure"
4 Occupant classification systemSRC-84, "Diagnosis Proce-
dure"
AWHIA0433GB
Revision: August 2015
2016 Versa Note
cardiagn.com

SRC-24
< ECU DIAGNOSIS INFORMATION >
DIAGNOSIS SENSOR UNIT
Flashes
(Primary) Flash Length
(seconds) Flashes
(Secondary) Malfunctioning Component or Circuit
Reference
23 1 Crash zone sensor
SRC-63, "
Diagnosis Proce-
dure"
2 Front side air bag satellite sensor LHSRC-72, "Diagnosis Proce-
dure"
3 Front side air bag satellite sensor RH
SRC-75, "Diagnosis Proce-
dure"
4 Rear side air bag satellite sensor LHSRC-78, "Diagnosis Proce-
dure"
5 Rear side air bag satellite sensor RHSRC-81, "Diagnosis Proce-
dure"
6 Front door satellite sensor LH
SRC-65, "Diagnosis Proce-
dure"
7 Front door satellite sensor RHSRC-67, "Diagnosis Proce-
dure"
8 Seat belt buckle switch LHSRC-59, "Diagnosis Proce-
dure"
9 Seat belt buckle switch RH
SRC-61, "Diagnosis Proce-
dure"
Revision: August 2015
2016 Versa Note
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INSPECTION AND ADJUSTMENTSRC-39
< BASIC INSPECTION >
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INSPECTION AND ADJUSTMENT
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT
ADDITIONAL SERVICE WHEN REPL ACING CONTROL UNIT : Description
INFOID:0000000012430612
Always perform zero point reset using CONSULT when removing and installing the passenger seat or servic-
ing the occupant classification system. If zero point reset is not performed the OCS may not operate normally,
which may increase the risk of serious injury in a collision.
ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement
INFOID:0000000012430613
WORK PROCEDURE WHEN REPLACING CONTROL UNIT
1.PERFORM ZERO POINT RESET
Perform zero point reset. Refer to SRC-39, "
ZERO POINT RESET : Special Repair Requirement".
Is zero point reset performed normally?
YES >> INSPECTION END
NO >> Check condition as per the following, and perform zero point reset again. • Passenger seat is occupied by an object.
• Excessive vibration is applied while performing zero point reset.
• Occupant detection system is malfunctioning.NOTE:
If “Incomplete” is displayed on “zero point reset cu rrent status”, zero point reset is not completed
normally. Check the condition as per the following and perform zero point reset again.
• Passenger seat is occupied by an object.
• Excessive vibration is applied while performing zero point reset.
• Occupant detection system is malfunctioning.
ZERO POINT RESET
ZERO POINT RESET : DescriptionINFOID:0000000012430614
Zero point reset is an initializing procedure for occupant detection sensor that must be performed when replac-
ing or removing and installing passenger seat.
If zero point reset is not performed, the initializati on is incomplete and Occupant Detection System does not
operate normally.
NOTE:
• When zero point reset is performed once after removal and installation of passenger seat, CONSULT dis- plays “complete”.
• When reinstalling passenger seat after removal, the initial value for occupant detection sensor changes, and
Occupant Detection System does not operate normally.
• Always perform zero point reset after performing the work as per the following.
- Reinstallation of passenger seat
- Installation of passenger seat that is zero point reset complete
- Installation of passenger seat that is zero point reset in complete
ZERO POINT RESET : Special Repair RequirementINFOID:0000000012430615
1.PERFORM ZERO POINT RESET
1. Perform zero point reset. NOTE:
When performing zero point reset, be careful of the items described as per the following.
• Perform zero point reset after installing passenger seat to the vehicle
• Do not put any objects on passenger seat
• Do not apply excessive vibration to the vehicle
• Do not touch the vehicle
• Do not tilt the vehicle
Revision: August 2015 2016 Versa Note
cardiagn.com

SRC-40
< BASIC INSPECTION >
INSPECTION AND ADJUSTMENT
2. Select start on “Zero point reset function” screen from, WORK SUPPORT of CONSULT “OCCUPANT
DETECTION”.
3. “Zero point reset” starts.
>> GO TO 2.
2.CONFIRMATION OF SETTING
1. Proceed to “Zero point reset function” screen from work support of CONSULT “OCCUPANT DETEC-
TION”.
2. Check that “Complete” or “Incomplete” is displayed on “Zero point reset status”.
CAUTION:
• “Complete” is displayed on “zero point reset current status” if the seat is reinstalled by seat removal
and installation, or “zero point reset” is already performed.
• “Zero point reset current status” displays “Incompl ete” if a new seat is installed. When turning key
switch ON without performing zero point reset , front passenger air bag OFF indicator turns ON.
When zero point reset is performed, front passenger air bag OFF indicator turns OFF.
• Air bag warning lamp blinks in user mode only.
• Air bag sensor unit does not record whethe r or not zero point reset is performed.
Is condition
“ALREADY PERFORMED”?
YES >> Print out “ZERO POINT RESET CURRENT STATUS” screen, and inspection end.
NO >> Check condition as per the following, and perform zero point reset again. • Passenger seat is occupied by an object.
• Excessive vibration is applied while performing zero point reset.
• Occupant detection system is malfunctioning.NOTE:
If “Incomplete” is displayed on “zero point reset cu rrent status”, zero point reset is not completed
normally. Check the condition as per the following and perform zero point reset again.
• Passenger seat is occupied by an object.
• Excessive vibration is applied while performing zero point reset.
• Occupant detection system is malfunctioning.
Revision: August 2015 2016 Versa Note
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B0001, B0002 DRIVER AIRBAG MODULE
SRC-43
< DTC/CIRCUIT DIAGNOSIS >
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Is the DTC detected?
YES >> Refer to SRC-43, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000012430618
WARNING:
• Before servicing, turn ignition sw itch OFF, disconnect battery negative terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
• Never use unspecified tester or other measuring device.
1.HARNESS CONNECTOR
Visually inspect all applicable harness connectors for the following:
• Visible damage to connector or terminal
• Loose terminal
• Poor connection NOTE:
All harness connectors should be inspected from t he air bag diagnosis sensor unit to the end component
(including any in-line connectors).
Is the inspection result normal?
YES >> GO TO 2.
NO >> Perform one of the following repairs: • Visible damage: Replace the harness.
• Loose terminal: Secure the terminal.
• Poor connection: Secure the connection.
2.CONFIRM DTC
1. Reconnect all harness connectors.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES >> GO TO 3.
NO >> Refer to GI-42, "
Intermittent Incident".
3.WIRING HARNESS
Check the wiring harness for visible damage.
NOTE:
The entire wiring harness should be inspected from the air bag diagnosis sensor unit to the end component
(including any in-line connectors).
Is the inspection result normal?
YES >> GO TO 4.
NO >> Replace the harness.
4.CHECK SPIRAL CABLE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect driver air bag module harness connector and combination switch (spiral cable) harness con- nector.
3. Check continuity between driver air bag module har ness connector and combination switch (spiral cable)
harness connector.
4. Check continuity between driver air bag module harness connector and ground.
Driver air bag module Combination switch (spiral cable)
Continuity
Connector TerminalConnector Terminal
M86 9
M30 30
Ye s
12
29
M87 10
28
11 3 0
Revision: August 2015 2016 Versa Note
cardiagn.com

SRC-44
< DTC/CIRCUIT DIAGNOSIS >
B0001, B0002 DRIVER AIRBAG MODULE
Is the inspection result normal?
YES >> GO TO 5.
NO >> Replace combination switch (spiral cable). Refer to SR-16, "
Removal and Installation".
5.CONFIRM DTC
1. Reconnect all harness connectors.
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES >> GO TO 6.
NO >> Refer to GI-42, "
Intermittent Incident".
6.AIR BAG DIAGNOSIS SENSOR UNIT
1. Replace the air bag diagnosis sensor unit. Refer to SR-30, "
Removal and Installation".
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES >> GO TO 7.
NO >> Clear DTC. Inspection End.
7.DRIVER AIR BAG MODULE
1. Replace the driver air bag module. Refer to SR-12, "
Removal and Installation".
2. Turn ignition switch ON.
3. Check for DTC using CONSULT.
Is DTC still current?
YES >> GO TO 8.
NO >> Clear DTC. Inspection End.
8.RELATED HARNESS
Replace the related harness.
>>END
Driver side air bag module
GroundContinuity
Connector Terminal
M86 9
No
12
M87 10
11
Revision: August 2015 2016 Versa Note
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