ignition INFINITI QX56 2006 Factory Service Manual

SUPPLEMENTAL RESTRAINT SYSTEM (SRS)SRS-5
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SRS
Revision: November 2009 2006 QX56
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)PFP:28556
SRS ConfigurationEHS0016G
The air bag deploys if the air bag diagnosis sensor unit is activated while the ignition switch is in the ON or
START position.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module, front passenger air bag module, front seat belt pre-tensioners
and seat belt buckle pre-tensioner assemblies are activated in a frontal collision but not in a side collision.
SRS configurations for some collision modes are as follows:
WHIA0215E
SRS configurationFrontal collision Left side collision Right side colli-
sion Rollover
Driver air bag module x———
Front passenger air bag module x———
Front LH seat belt pre-tensioner x—— x
Front LH seat belt buckle pre-tensioner assembly x—— x
Front RH seat belt pre-tensioner x—— x
Front RH seat belt buckle pre-tensioner assembly x—— x
Front LH side air bag module —x——
Front RH side air bag module ——x—
LH side front curtain air bag module —x— x
LH side rear curtain air bag module —x— x
RH side front curtain air bag module ——xx
RH side rear curtain air bag module ——xx

TROUBLE DIAGNOSISSRS-19
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SRS
Revision: November 2009 2006 QX56
HOW TO ERASE SELF-DIAGNOSIS RESULTS

“SELF-DIAG [CURRENT]”
A current self-diagnosis result is displayed on the CONSULT-II
screen in real time.
After the malfunction is repaired completely, no malfunction is
detected on “SELF-DIAG [CURRENT] ”.

“SELF-DIAG [PAST]”
Return to the “SELF-DIAG [CURRENT] ” CONSULT-II screen by
touching “BACK” key of CONSULT-II and select “SELF-DIAG
[PAST] ” in SELECT DIAG MODE. Touch “ERASE” in “SELF-
DIAG [PAST] ” mode.
NOTE:
If the memory of the malfunction in “SELF-DIAG [PAST]” is
not erased, the User mode will continue to show the system
malfunction by the operation of the warning lamp even if
the malfunction is repaired completely.

“TROUBLE DIAG RECORD ”
The memory of “TROUBLE DIAG RECORD ” cannot be erased.
Self-Diagnosis Function (Without CONSULT-II)EHS0016R

The reading of these results is accomplished using one of two modes — “User mode” and “Diagnosis
mode ”.

After a malfunction is repaired, turn the ignition switch OFF for at least one second, then back ON. Diag-
nosis mode returns to the User mode. At that time, the self-diagnostic result is cleared.
SRS804
SRS701
SRS702

SRS-20
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
HOW TO CHANGE SELF-DIAGNOSIS MODE
HOW TO ERASE SELF-DIAGNOSIS RESULTS
After a malfunction is repaired, turn the ignition switch OFF for at least one second, then back ON. Diagnosis
mode returns to the User mode. At that time, the self-diagnostic result is cleared.
SRS Operation CheckEHS0016S
DIAGNOSTIC PROCEDURE 1
Checking SRS Operation Using “AIR BAG” Warning Lamp—User Mode
1. Turn the ignition switch from OFF to ON, and check that the air bag warning lamp blinks.
2. Compare the SRS air bag warning lamp blinking pattern with the
examples.
SHIA0183E
BF-1845D

SRS-22
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Trouble Diagnosis With CONSULT-IIEHS0016T
DIAGNOSTIC PROCEDURE 2
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunction might be detected
in self-diagnosis depending on control unit which carries out CAN communication.
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to the
data link connector.
3. Turn ignition switch ON.
4. Touch “START (NISSAN BASED VHCL) ”.
5. Touch “AIR BAG”.
If "AIR BAG" is not indicated, refer to GI-40, "
CONSULT-II Data
Link Connector (DLC) Circuit" .
6. Touch "SELF-DIAG [CURRENT]".
BBIA0369E
BCIA0029E
BCIA0030E
BCIA0031E

SRS-28
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
NOTE:
Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is
eliminated using air bag warning lamp or CONSULT-II each time repair is finished. If malfunction is still
observed, proceed to the next step. When malfunction is eliminated, further repair work is not required.
DIAGNOSTIC PROCEDURE 3
Final Check of SRS Using CONSULT-II—Diagnosis Mode
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunction might be detected
in self-diagnosis depending on control unit which carries out CAN communication.
1. After repairing SRS, connect both battery cables.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector.
3. Turn ignition switch ON.
4. Touch “START (NISSAN BASED VHCL) ”.
5. Touch “AIR BAG”.
PASS A/B INDCTR CKT
[B1023]

Front passenger air bag off indicator is malfunctioning. 1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. Replace front passenger air bag off indicator.
4. Replace the air bag diagnosis sen- sor unit.
5. Replace the related harness.
FRONTAL COLLISION DETECTION[B1209]

Driver and front passenger air bag modules are deployed. 1. Refer to SRS-60, "COLLISION
DIAGNOSIS" .
SIDE COLLISION DETECTION [B1210]

Side or curtain air bag modules are deployed (with side air
bags only). 1. Refer to
SRS-60, "COLLISION
DIAGNOSIS" .
ROLLOVER DETECTION [B1211]

Curtain air bag module and seat belt pre-tensioner are
deployed. 1. Refer to
SRS-60, "COLLISION
DIAGNOSIS" .
Diagnostic item
Explanation Repair order
Recheck SRS at each replacement
BBIA0369E
BCIA0029E

SRS-30
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
10. Check that no malfunction is detected on “SELF-DIAG [PAST]”.
11 . To u c h “BACK” key of CONSULT-II until “SELECT SYSTEM”
appears in order to return to User mode from Diagnosis mode.
12. Turn ignition switch OFF then turn off and disconnect CON- SULT-II.
13. Go to SRS-20, "
Checking SRS Operation Using “AIR BAG”
Warning Lamp—User Mode" .
SRS702

TROUBLE DIAGNOSISSRS-31
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Revision: November 2009 2006 QX56
DIAGNOSTIC PROCEDURE 4 (CONTINUED FROM DIAGNOSTIC PROCEDURE 2)
Check SRS Repair History
1. CONSIDER POSSIBILITY THAT SELF-DIAGNOSTIC RESULT WAS NOT ERASED AFTER REPAIR
Check repair history of the SRS.
Have any previous repairs been made to the SRS?
Yes >> Self-diagnostic result “SELF-DIAG [PAST] ” (previously stored in the memory) might not be erased
after repair. Go to SRS-28, "
DIAGNOSTIC PROCEDURE 3" .
No >> Go to SRS-22, "
DIAGNOSTIC PROCEDURE 2" .
DIAGNOSTIC PROCEDURE 5
Check SRS Intermittent Malfunction Using CONSULT-II—Diagnosis Mode
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunction might be detected
in self-diagnosis depending on control unit which carries out CAN communication.
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data
link connector.
3. Turn ignition switch ON.
4. Touch “START (NISSAN BASED VHCL) ”.
5. Touch “AIR BAG”.
If "AIR BAG" is not indicated, refer to GI-40, "
CONSULT-II Data
Link Connector (DLC) Circuit" .
BBIA0369E
BCIA0029E
BCIA0030E

SRS-32
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
6. Touch “SELF-DIAG [PAST] ”.
7. If diagnostic codes are displayed on “SELF-DIAG [PAST]”, go to
step 10.
If no malfunction is detected on “SELF-DIAG [PAST]”, touch
“BACK ” and go back to “SELECT DIAG MODE ”.
8. Touch “TROUBLE DIAG RECORD ”.
NOTE:
With “TROUBLE DIAG RECORD”, diagnosis results previ-
ously erased by a reset operation can be displayed.
9. Diagnostic code is displayed on “TROUBLE DIAG RECORD”.
10. Touch “PRINT”.
11. Compare diagnostic codes to SRS-33, "
CONSULT-II Diagnostic
Code Chart ("SELF-DIAG [PAST]" or "TROUBLE DIAG
RECORD")" .
12. Touch “BACK” key of CONSULT-II until “SELECT SYSTEM”
appears.
13. Turn ignition switch OFF, then turn off and disconnect CON- SULT-II, and both battery cables.
BCIA0031E
WHIA0152E
SRS702
BCIA0031E
WHIA0153E

SRS-38
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Trouble Diagnosis Without CONSULT-IIEHS001MZ
DIAGNOSTIC PROCEDURE 6
Inspect SRS Malfunction Using "AIR BAG" Warning Lamp—Diagnosis Mode
NOTE:
SRS will not enter Diagnosis mode if no malfunction is detected in User mode.
1. Turn ignition switch ON.
2. After “AIR BAG ” warning lamp lights for 7 seconds, turn ignition switch OFF within 1 second.
3. Wait more than 3 seconds.
4. Repeat steps 1 to 3 two more times (3 times total).
5. Turn ignition switch ON.
SRS is now in Diagnosis mode.
"AIR BAG" warning lamp operates in Diagnosis mode as follows:

SRS-44
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Trouble Diagnosis: “AIR BAG” Warning Lamp Does Not Turn OffEHS0016V
DIAGNOSTIC PROCEDURE 6
1. CHECK CONDITION OF AIR BAG MODULE
Inspect for any deployed air bag modules or seat belt pre-tensioners.
Are any air bag modules or seat belt pre-tensioners deployed?
Yes >> Refer to SRS-60, "COLLISION DIAGNOSIS" .
No >> GO TO 2.
2. CHECK THE AIR BAG FUSE
Check 10A fuse [No. 13, located in the fuse block (J/B)].
Refer to PG-4, "
POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK AIR BAG FUSE AGAIN
Replace 10A fuse [No. 13, located in the fuse block (J/B)] and turn ignition switch ON.
Does the fuse blow again?
Yes >> Repair harness.
No >> Inspection End.
4. CHECK AIR BAG DIAGNOSIS SENSOR UNIT
Connect CONSULT-II and touch “START”.
Is
“AIR BAG” displayed on CONSULT-II?
Yes >> GO TO 5.
No >> Visually inspect the air bag diagnosis sensor unit har- ness connections. If the connections are OK, replace
the air bag diagnosis sensor unit. Refer to SRS-58,
"Removal and Installation" .
5. CHECK HARNESS CONNECTION
Check for loose connections between the combination meter and the air bag diagnosis sensor unit.
OK or NG
OK >> Replace air bag diagnosis sensor unit. Refer to SRS-58, "Removal and Installation" .
NG >> Properly connect the combination meter and air bag diagnosis sensor unit harness connectors. If “AIR BAG” warning lamp still does not turn off, replace the wiring harness.
BCIA0030E