Nissan Cube. Instruction — part 875
OCCUPANT DETECTION SYSTEM
SRC-17
< SYSTEM DESCRIPTION >
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Component Description
INFOID:0000000009946092
A.
Behind headlining
B.
Behind center pillar lower gamish
C.
Behind center console assembly
D.
Backside of passenger seat cushion
frame
E.
Behind glove box assembly
F.
View with front grille removed
G.
View with steering wheel removed
Component parts
Outline of function
Occupant Detection System sensor
Detects if the passenger seat is empty or occupied
Occupant Detection System control unit
Transmits the passenger seat status (occupied or empty) to air bag diagnosis sensor unit
Passenger air bag OFF indicator
Turns the passenger air bag OFF indicator lamp ON when the passenger seat is occupied
by a child or a child-seat
Air bag diagnosis sensor unit
• Performs the deploy judgement of passenger air bag based on the information from Oc-
cupant Detection System control unit.
• Passenger air bag OFF indicator turns ON or turns OFF when passenger state signal de-
tected by Occupant Detection System control unit is received.
SRC-18
< SYSTEM DESCRIPTION >
ON BOARD DIAGNOSTIC (OBD) SYSTEM
ON BOARD DIAGNOSTIC (OBD) SYSTEM
Diagnosis Description
INFOID:0000000009946093
CAUTION:
• Never use electrical test equipment on any circuit related to the SRS unless instructed in this Ser-
vice Instruction. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
• Never repair, splice or modify the SRS wiring harness. If the harness is damaged, replace it with a
new one.
• Keep ground portion clean.
DIAGNOSIS FUNCTION
• The SRS self-diagnosis results can be read with air bag warning lamp and/or CONSULT.
• The user mode is exclusively prepared for the customer (driver). This mode warns the driver of a system
malfunction through the operation of the air bag warning lamp.
• The diagnosis mode allows the technician to locate and inspect the malfunctioning part.
• The mode applications for the air bag warning lamp and CONSULT are as per the following items.
×
: Application, —: Not application
Diagnosis with Air Bag Warning Lamp
INFOID:0000000009946094
SELF DIAGNOSIS FUNCTION
There are two self diagnosis functions with air bag warning lamp per the following items.
• USER MODE
• DIAGNOSIS MODE
CHANGE DIAGNOSIS MODE
• Diagnosis mode changes from user mode to diagnosis mode when changing operation is performed.
• In user mode, when SRS air bag warning lamp is not blinking, changing to diagnosis mode by ignition switch
operation is not possible.
• In diagnosis mode, when repair is complete and system is normal, the mode changes to user mode when
ignition switch is turned from OFF to ON.
PROCEDURE TO CHANGE DIAGNOSIS MODE
1.
Turn ignition switch from OFF to ON.
2.
SRS air bag lamp turns ON for 7 second and turns OFF, then turn ignition switch OFF within 1second after
the lamp turns OFF.
3.
After turning ignition switch OFF, wait for 3 seconds or more.
4.
Repeat operation 1 to 3 for 2 times so that operation 1 to 3 is repeated for 3times in total.
5.
Turn ignition switch from OFF to ON. Diagnosis mode changes.
USER MODE
In USER MODE, air bag warning lamp on combination meter blinks when a malfunction is detected and warns
the customer (driver).
How to Read Air Bag Warning Lamp
1.
Turn the ignition switch from OFF to ON, and check that the air bag warning lamp blinks.
2.
Compare the air bag warning lamp blinking pattern with the examples.
Air Bag Warning Lamp Examples
Diagnosis tool
User mode
Diagnosis mode
Air bag warning lamp
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CONSULT
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×
ON BOARD DIAGNOSTIC (OBD) SYSTEM
SRC-19
< SYSTEM DESCRIPTION >
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DIAGNOSIS MODE
The diagnosis mode can only be switched when a malfunction is detected in the user mode. Malfunctioning
system is indicated according to blinking pattern of air bag warning lamp.
How to Read Air Bag Warning Lamp
1.
Follow the procedures of “PROCEDURE TO CHANGE DIAGNOSIS MODE”, and switch to the diagnosis
mode.
2.
Turn ignition switch ON. Check the blinking pattern of air bag warning lamp.
There are 2 blinking patterns for the air bag warning lamp as per the following items.
• Front air bag system: 3 second blink followed by a 0.5 second blink repeated.
Air bag warning lamp operation (user mode)
SRS condition
Reference item
• No malfunction is detected
• No further action is necessary
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• The system is malfunctioning
• Self diagnostic result is not erased af-
ter repair
Erase “Self Diagnostic Result”
Refer to
, How to Erase Self-diagnostic
Result
Battery voltage is low (less than 9 V)
Check “Cause of Warning Lamp”
with CONSULT.
Refer to
Zero point reset is not completed
Go to
Intermittent malfunction is detected in
the past
Go to
GI-40, "Intermittent Incident"
• Air bag is deployed
• Seat belt pre-tensioner is deployed
Go to
or
• Air bag diagnosis sensor unit is mal-
functioning
• Air bag power supply circuit is mal-
functioning
• Air bag warning lamp circuit is mal-
functioning
Go to
• Air bag diagnosis sensor unit is mal-
functioning
• Air bag warning lamp circuit is mal-
functioning
Go to
SHIA0011E
SHIA0012E
SHIA0013E
SHIA0014E
SRC-20
< SYSTEM DESCRIPTION >
ON BOARD DIAGNOSTIC (OBD) SYSTEM
• Side air bag system: Two 1.5 second blinks followed by a 0.5 second blink repeated.
Front air bag system
Number of 0.5 second blinks
Malfunctioning items
Blinking pattern
0
• Self-diagnostic result is not erased after repair
• Intermittent malfunction is detected in the past
Refer to the following items
• Refer to How to Erase Self-di-
agnostic Result
•
GI-40, "Intermittent Incident"
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Seat belt pre-tensioner RH
Refer to the following items
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Driver air bag module
Refer to the following items
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Seat belt pre-tensioner LH
Refer to the following items
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Occupant Detection System control unit
Refer to the following items
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Crash zone sensor
Refer to the following items
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Air bag diagnosis sensor unit
Refer to the following items
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Passenger air bag module
Refer to the following items
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Passenger air bag OFF indicator
Refer to
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Air bag diagnosis sensor unit
Refer to
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