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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DIAGNOSIS AND REPAIR WORK FLOWSRC-37
< BASIC INSPECTION >
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1.INTERVIEW THE CUSTOMER FOR THE SYMPTOM
Interview the customer for the symptom (the condi tion and the environment when the incident/malfunction
occurs).
>> GO TO 2.
2.CHECK SYMPTOM
Check the symptom from the customer information.
>> GO TO 3.
3.CHECK WARNING LAMP OPERATION
Check air bag warning lamp operation in the user mode.
Are any malfunction detected?
YES >> GO TO 5.
NO >> GO TO 4.
4.CHECK LOW VOLTAGE
Check low voltage with CONSULT.
Are any malfunction detected?
YES >> GO TO 9.
NO >> Check intermittent incident. Refer to GI-42, "
Intermittent Incident".
5.CHECK SELF DIAGNOSTIC RESULTS
Check self diagnostic result with CONSULT or diagnosis mode.
If it is impossible to switch to diagnosis mode, follow the same procedure that DTC is not detected.
NOTE:
Perform the following procedure if DTC is detected.
• Record DTC (Print them out with CONSULT.)
• Erase self diagnostic result.
• Study the relationship between the malfunction that DTC or air bag warning lamp indicates and the symptom that the customer describes.
• Check related service bulletins for information.
Is DTC detected?
YES >> GO TO 6.
NO >> GO TO 7.
6.PERFORM DTC CONFIRMATION PROCEDURE
Perform DTC CONFIRMATION PROCEDURE for the DTC.
>> GO TO 8.
7.PERFORM DIAGNOSIS ACCORDING TO WARNING LAMP OPERATION
1. Check air bag warning lamp operation in the user mode.
2. Perform Diagnosis Procedure for the air bag warning lamp operation.
>> GO TO 9.
8.DETECT MALFUNCTIONING PA RT BY DIAGNOSTIC PROCEDURE
Inspect according to Diagnostic Procedure of the DTC.
>> GO TO 9.
9.REPAIR OR REPLACE THE MALFUNCTION PART
Repair or replace the malfunctioning part.
Revision: August 2015 2016 Versa Note
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SRC-38
< BASIC INSPECTION >
DIAGNOSIS AND REPAIR WORK FLOW
>> GO TO 10.
10.ON BOARD DIAGNOSIS FUNCTION
Check self diagnostic result and air bag warning lamp operation in the user mode.
Is the malfunction repaired?
YES >> Inspection End.
NO >> GO TO 2.
Revision: August 2015 2016 Versa Note
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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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SRC-42
< DTC/CIRCUIT DIAGNOSIS >
B0001, B0002 DRIVER AIRBAG MODULE
DTC/CIRCUIT DIAGNOSIS
B0001, B0002 DRIVER AIRBAG MODULE
DTC LogicINFOID:0000000012430617
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE (With CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check for DTC using CONSULT.
Is the DTC detected?
YES (Current DTC)>>Refer to SRC-43, "Diagnosis Procedure".
YES (Past DTC)>>GO TO 2.
NO >> Inspection End.
2.ERASE SELF-DIAG RESULT
Erase the DTC using CONSULT.
Can the DTC be erased?
YES >> Inspection End.
NO >> Refer to SRC-43, "
Diagnosis Procedure".
DTC CONFIRMATION PROCEDURE (Without CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-14, "
On Board Diagnosis Function".
NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
CONSULT nameDTC DTC detecting condition Repair order
DRIVER AIRBAG MODULE CIRCUIT [OPEN]
B0001Driver air bag module circuit
(DR1) is open
(including the spiral cable).
Refer to
SRC-43, "
Diagnosis Proce-
dure".
DRIVER AIRBAG MODULE CIRCUIT [VB-SHORT] Driver air bag module circuit
(DR1) is shorted to a power sup-
ply circuit
(including the spiral cable).
DRIVER AIRBAG MODULE CIRCUIT [GND-SHORT] Driver air bag module circuit
(DR1) is shorted to ground
(including the spiral cable).
DRIVER AIRBAG MODULE CIRCUIT [SHORT] Driver air bag module circuits
(DR1) are shorted to each other
(including the spiral cable).
DRIVER AIRBAG MODULE 2ND CIRCUIT [OPEN]
B0002Driver air bag module circuit
(DR2) is open
(including the spiral cable).
DRIVER AIRBAG MODULE 2ND CIRCUIT [VB-SHORT] Driver air bag module circuit
(DR2) is shorted to a power sup-
ply circuit
(including the spiral cable).
DRIVER AIRBAG MODULE 2ND CIRCUIT [GND-SHORT] Driver air bag module circuit
(DR2) is shorted to ground
(including the spiral cable).
DRIVER AIRBAG MODULE 2ND CIRCUIT [SHORT] Driver air bag module circuits
(DR2) are shorted to each other
(including the spiral cable).
Revision: August 2015
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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
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B0010, B0011 PASSENGER AIRBAG MODULESRC-45
< DTC/CIRCUIT DIAGNOSIS >
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B0010, B0011 PASSENGE R AIRBAG MODULE
DTC LogicINFOID:0000000012430619
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE (With CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check for DTC using CONSULT.
Is the DTC detected?
YES (Current DTC)>>Refer to SRC-45, "Diagnosis Procedure".
YES (Past DTC)>>GO TO 2.
NO >> Inspection End.
2.ERASE SELF-DIAG RESULT
Erase the DTC using CONSULT.
Can the DTC be erased?
YES >> Inspection End.
NO >> Refer to SRC-45, "
Diagnosis Procedure".
DTC CONFIRMATION PROCEDURE (Without CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-14, "
On Board Diagnosis Function".
NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
Is the DTC detected?
YES >> Refer to SRC-45, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000012430620
1.HARNESS CONNECTOR
Visually inspect all applicable harness connectors for the following:
CONSULT name DTC DTC detecting condition Repair order
ASSIST AIRBAG MODULE CIRCUIT [OPEN]
B0010Front passenger air bag module circuit
(AS1) is open.
Refer to SRC-45, "
Diagnosis Proce-
dure".
ASSIST AIRBAG MODULE CIRCUIT [VB-SHORT] Front passenger air bag module circuit
(AS1) is shorted to a power supply cir-
cuit.
ASSIST AIRBAG MODULE CIRCUIT [GND-SHORT] Front passenger air bag module circuit
(AS1) is shorted to ground.
ASSIST AIRBAG MODULE CIRCUIT [SHORT] Front passenger air bag module cir-
cuits (AS1) are shorted to each other.
ASSIST AIRBAG MODULE 2ND CIRCUIT [OPEN]
B0011Front passenger air bag module circuit
(AS2) is open.
ASSIST AIRBAG MODULE 2ND CIRCUIT [VB-SHORT] Front passenger air bag module circuit
(AS2) is shorted to a power supply cir-
cuit.
ASSIST AIRBAG MODULE 2ND CIRCUIT [GND-SHORT] Front passenger air bag module circuit
(AS2) is shorted to ground.
ASSIST AIRBAG MODULE 2ND CIRCUIT [SHORT] Front passenger air bag module cir-
cuits (AS2) are shorted to each other.
Revision: August 2015
2016 Versa Note
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B0020 SIDE AIRBAG MODULE LHSRC-47
< DTC/CIRCUIT DIAGNOSIS >
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B0020 SIDE AIRBAG MODULE LH
DescriptionINFOID:0000000012430621
DTC B0020 FRONT LH SIDE AIR BAG MODULE
The front LH side air bag module is wired to the air bag diagnosis sensor unit. The air bag diagnosis sensor
unit will monitor for opens and shorts in detected lines to the front LH side air bag module.
PA R T L O C AT I O N
Refer to SRC-5, "Component Parts Location".
DTC LogicINFOID:0000000012430622
DTC DETECTION LOGIC
With CONSULT
DTC CONFIRMATION PROCEDURE (With CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check for DTC using CONSULT.
Is the DTC detected?
YES (Current DTC)>>Refer to SRC-47, "Diagnosis Procedure".
YES (Past DTC)>>GO TO 2.
NO >> Inspection End.
2.ERASE SELF-DIAG RESULT
Erase the DTC using CONSULT.
Can the DTC be erased?
YES >> Inspection End.
NO >> Refer to SRC-47, "
Diagnosis Procedure".
DTC CONFIRMATION PROCEDURE (Without CONSULT)
1.CHECK SELF-DIAG RESULT
1. Turn ignition switch ON.
2. Check the air bag warning lamp status. Refer to SRC-14, "
On Board Diagnosis Function".
NOTE:
SRS will not enter diagnosis mode if no malfunction is detected in user mode.
Is the DTC detected?
YES >> Refer to SRC-47, "Diagnosis Procedure".
NO >> Inspection End.
Diagnosis ProcedureINFOID:0000000012430623
1.HARNESS CONNECTOR
Visually inspect all applicable harness connectors for the following:
CONSULT name DTC DTC detecting condition Repair order
SIDE AIRBAG MODULE LH CIRCUIT [OPEN]
B0020Front LH side air bag module circuit is
open.
Refer to SRC-47, "
Diagnosis Procedure".
SIDE AIRBAG MODULE LH CIRCUIT [VB-SHORT] Front LH side air bag module circuit is
shorted to a power supply circuit.
SIDE AIRBAG MODULE LH CIRCUIT [GND-SHORT] Front LH side air bag module circuit is
shorted to ground.
SIDE AIRBAG MODULE LH CIRCUIT [SHORT] Front LH side air bag module circuits
are shorted to each other.
Revision: August 2015
2016 Versa Note
cardiagn.com