Nissan Leaf. Manual — part 1103
DIAGNOSIS SYSTEM (AIR BAG)
SRC-13
< SYSTEM DESCRIPTION >
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2. Turn ignition switch ON. Check the blinking pattern of air bag warning lamp.
There are 4 blinking patterns for the air bag warning lamp as per the following items.
• Front air bag system: Two 1.5 second blink followed by a 0.5 second blink repeated.
• Side air bag system: Three 1.5 second blinks followed by a 0.5 second blink repeated.
• Air bag control unit system: 3 second blink followed by a 0.5 second blink repeated.
• Sensor system: Two 3 second blinks followed by a 0.5 second blink repeated.
Front air bag system
Side air bag system
Air bag control unit system
Sensor system
How to Erase Self-diagnostic Result
After a malfunction is repaired, turn the ignition switch OFF for one second or more, then turn ignition switch
ON. The diagnosis mode returns to the user mode. At that time the self-diagnostic result is cleared.
CONSULT Function
INFOID:0000000010122784
APPLICATION ITEM
CONSULT performs the following functions.
Number of 0.5 second blinks
Malfunctioning items
1
Driver air bag module
2
Passenger air bag module
3
Seat belt pre-tensioner LH
4
Seat belt pre-tensioner RH
5
Lap pre-tensioner LH
Number of 0.5-second blinks
Malfunctioning items
1
Side air bag module LH
2
Side air bag module RH
3
Curtain air bag module LH
4
Curtain air bag module RH
Number of 0.5 second blinks
Malfunctioning items
1
Collision detection
2
Air bag diagnosis sensor unit
3
Front passenger air bag indicator
5
Air bag cut OFF switch
Number of 0.5 second blinks
Malfunctioning items
1
Crash zone sensor
2
Satellite sensor LH
3
Satellite sensor RH
12
Other satellite sensor
Diagnosis mode
Description
Ecu Identification
Air bag diagnosis sensor unit ECU discriminated number (identification number) or part num-
ber is displayed. Air bag diagnosis sensor unit has individual ECU discriminated number
(identification number) or part number based on model and equipment.
Self Diagnostic Result
The current self diagnosis results (also indicated with the number of air bag warning lamp
blinks in the diagnosis mode) are displayed on CONSULT screen in real time. This refers to
a malfunctioning part requiring repairs.
Refer to
TROUBLE DIAG RECORD
With TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation
can be displayed on CONSULT screen.
SRC-14
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (AIR BAG)
CAUSE OF WARNING LAMP
The SRS air bag warning lamp blinks when the ignition voltage is a voltage value (9V or less, or 16 V or more)
at which the SRS air bag cannot operate normally. After blinking, if the ignition voltage returns to normal, SRS
air bag warning lamp turns OFF.DTC memory is not performed while the abnormal ignition voltage is detected.
The mode cannot be switched to trouble diagnosis mode when the ignition switch is operated.“No DTC” is dis-
played when checking “Self-diagnosis result” using CONSULT.
NOTE:
• SRS air bag warning may blink when the condition is out of detection area* of the satellite sensor in door.
The system is normal if SRS air bag warning lamp turns OFF after the condition returns within detection area
of the satellite sensor in door.
• SRS air bag warning lamp blinks when the zero point reset is incomplete after replacing the occupant detec-
tion system control unit. (SRS air bag warning lamp turns OFF after the zero point reset is complete.)
• *: Pressure inside of door is excessively low and air bag system cannot be operated normally (example: alti-
tude is approximately 4,000 m or more).
SELF-DIAG RESULT [CAN]
This item is displayed, but cannot be supported.
Cause of Warning Lamp
It displays the cause of warning lamp illumination that is not recorded in memory.
Diagnosis mode
Description
Display item
Display content
Actions by worker
IGN VOLT COND
The ignition voltage recognized by air bag system (air bag
control unit and occupant detection system control unit) is
displayed or a message stating that condition is out of de-
tection range of satellite sensor in door is displayed.
• OK: Normal
• LOW: The ignition voltage is low, high, or out of detec-
tion range of satellite sensor in door
Perform the check at an altitude of 4,000 m or
less.
• Check battery voltage if the ignition voltage
status is displayed as “LOW”.
• Check battery voltage if the ignition voltage
status is“OK” and the number of times detect-
ed is 1 or more. This is because an ignition
voltage error may be detected in the past.
NOTE:
If battery voltage is normal, the cause may be
that out of detection range of satellite sensor
in door is detected.
IGN VOLT TIME
Total number of times is displayed, summing up the num-
ber of times ignition voltage error is detected and the num-
ber of times that out of detection range of satellite sensor
in door is detected.
(Detection record is erased and counter returns to “0” by
“ERASE MEMORY” in “Self-diagnosis results” using CON-
SULT.)
LOW V RECORED
Number of times ignition switch ON is displayed after igni-
tion voltage error or out of detection range of satellite sen-
sor in door is detected.
(Detection record is erased and counter returns to “0” by
“ERASE MEMORY” in “Self-diagnosis results” using CON-
SULT.)
DIAGNOSIS SYSTEM (OCCUPANT DETECTION SYSTEM)
SRC-15
< SYSTEM DESCRIPTION >
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DIAGNOSIS SYSTEM (OCCUPANT DETECTION SYSTEM)
CONSULT Function
INFOID:0000000010122785
ZERO POINT RESET DESCRIPTION
This vehicle adopts occupant detection system with a weight detecting method. When replacing, or removing
and installing passenger seat, always perform “Zero point reset” so that the vehicle recognizes zero point.
If zero point reset is incomplete, occupant detection seat sensor does not operate normally.
WORK SUPPORT
Monitor item
Description
Zero point reset function
Perform zero point reset. Refer to
SET : Special Repair Requirement"
.
SRC-16
< ECU DIAGNOSIS INFORMATION >
DIAGNOSIS SENSOR UNIT
ECU DIAGNOSIS INFORMATION
DIAGNOSIS SENSOR UNIT
DTC Index
INFOID:0000000010876195
DTC
Diagnostic item
Number of times of warning lamp
blinking in diagnosis mode
Reference page
System display
Item display
U1000–01
CAN COMM CIRCUIT
—
—
SRC-39, "Diag-
nosis Procedure"
U1010–49
CONTROL UNIT (CAN)
—
—
SRC-40, "Diag-
nosis Procedure"
B0001–00
DRIVER AIRBAG MODULE [SHORT]
Front air bag system
1
SRC-42, "Diag-
nosis Procedure"
B0001–09
DRIVER AIRBAG MODULE [SHORT]
B0001–11
DRIVER AIRBAG MODULE [GND-SHORT]
B0001–12
DRIVER AIRBAG MODULE [VB-SHORT]
B0001–13
DRIVER AIRBAG MODULE [OPEN]
B0001–1A
DRIVER AIRBAG MODULE [SHORT]
B0002–00
DRIVER AIRBAG MODULE 2 [SHORT]
Front air bag system
1
SRC-46, "Diag-
nosis Procedure"
B0002–09
DRIVER AIRBAG MODULE 2 [SHORT]
B0002–11
DRIVER AIRBAG MODULE 2 [GND-SHORT]
B0002–12
DRIVER AIRBAG MODULE 2 [VB-SHORT]
B0002–13
DRIVER AIRBAG MODULE 2 [OPEN]
B0002–1A
DRIVER AIRBAG MODULE 2 [SHORT]
B0010–09
ASSIST A/B MODULE [SHORT]
Front air bag system
2
SRC-50, "Diag-
nosis Procedure"
B0010–11
ASSIST A/B MODULE [GND-SHORT]
B0010–12
ASSIST A/B MODULE [VB-SHORT]
B0010–13
ASSIST A/B MODULE [OPEN]
B0010–1A
ASSIST A/B MODULE [SHORT]
B0011–09
ASSIST A/B MODULE 2 [SHORT]
Front air bag system
2
SRC-53, "Diag-
nosis Procedure"
B0011–11
ASSIST A/B MODULE 2 [GND-SHORT]
B0011–12
ASSIST A/B MODULE 2 [VB-SHORT]
B0011–13
ASSIST A/B MODULE 2 [OPEN]
B0011–1A
ASSIST A/B MODULE 2 [SHORT]
B0020–09
SIDE A/B MODULE LH [SHORT]
Side air bag system
1
SRC-56, "Diag-
nosis Procedure"
B0020–11
SIDE A/B MODULE LH [GND-SHORT]
B0020–12
SIDE A/B MODULE LH [VB-SHORT]
B0020–13
SIDE A/B MODULE LH [OPEN]
B0020–1A
SIDE A/B MODULE LH [SHORT]
B0021–09
CURTAIN A/B MODULE LH [SHORT]
Side air bag system
3
SRC-59, "Diag-
nosis Procedure"
B0021–11
CURTAIN A/B MODULE LH [GND-SHORT]
B0021–12
CURTAIN A/B MODULE LH [VB-SHORT]
B0021–13
CURTAIN A/B MODULE LH [OPEN]
B0021–1A
CURTAIN A/B MODULE LH [SHORT]
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