2007 INFINITI QX56 ignition

SRS-20
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
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 CheckINFOID:0000000003532868
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

TROUBLE DIAGNOSIS
SRS-27
< SERVICE INFORMATION >
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1. If no DTC is detected on “SELF-DIAG [CURRENT]”, repair of
SRS is completed. Go to step 2.
If any DTC is detected on “SELF-DIAG [CURRENT]”, the mal-
functioning part has not been repaired completely or another
malfunctioning part is being detected. Go to "DIAGNOSTIC
PROCEDURE 2" .
2. Touch “ERASE”.
NOTE:
Touch “ERASE” to clear the memory of the malfunction
(“SELF-DIAG [PAST]”).
If the memory of the malfunction in “SELF-DIAG [PAST]” is not
erased, the User mode shows the system malfunction by the
operation of the warning lamp even if the malfunction is repaired
completely.
3. Touch “BACK” key of CONSULT-II to “SELECT DIAG MODE”
screen. Touch “SELF-DIAG [PAST]”.
4. Check that no malfunction is detected on “SELF-DIAG [PAST]”.
5. Touch “BACK” key of CONSULT-II until “SELECT SYSTEM”
appears in order to return to User mode from Diagnosis mode.
6. Turn ignition switch OFF then turn off and disconnect CON-
SULT-II.
7. Go to SRS-20, "
SRS Operation Check" .
DIAGNOSTIC PROCEDURE 4
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 "DIAGNOSTIC PROCEDURE 3" .
No >> Go to "DIAGNOSTIC PROCEDURE 2" .
DIAGNOSTIC PROCEDURE 5
SRS701
WHIA0151E
BCIA0031E
SRS702

SRS-28
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Check SRS Intermittent Malfunction Using CONSULT-II—Diagnosis Mode
Refer to GI-36, "CONSULT-II Start Procedure" .
1. If diagnostic codes are displayed on “SELF-DIAG [PAST]”, go to
step 4.
If no malfunction is detected on “SELF-DIAG [PAST]”, touch
“BACK” and go back to “SELECT DIAG MODE”.
2. Touch “TROUBLE DIAG RECORD”.
NOTE:
With “TROUBLE DIAG RECORD”, diagnosis results previ-
ously erased by a reset operation can be displayed.
3. Diagnostic code is displayed on “TROUBLE DIAG RECORD”.
4. Touch “PRINT”.
5. Compare diagnostic codes to "CONSULT-II Diagnostic Code
Chart".
6. Touch “BACK” key of CONSULT-II until “SELECT SYSTEM”
appears.
7. Turn ignition switch OFF, then turn off and disconnect CON-
SULT-II, and both battery cables.
8. Repair the system as outlined by the “Repair order” in “Intermit-
tent Malfunction Diagnostic Code Chart”, that corresponds to the
self-diagnostic result. For replacement procedure of component
parts, refer to the Removal and Installation procedure for the appropriate component.
9. Go to "DIAGNOSTIC PROCEDURE 3" , for final checking.
Trouble Diagnosis without CONSULT-IIINFOID:0000000003532870
DIAGNOSTIC PROCEDURE 6
Inspect SRS Malfunction Using "AIR BAG" Warning Lamp—Diagnosis Mode
NOTE:
WHIA0152E
SRS702
BCIA0031E
WHIA0153E

TROUBLE DIAGNOSIS
SRS-29
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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:
WARNING LAMP FLASH CODE CHART
SHIA0026E
WHIA0260E
WHIA0198E
WHIA0261E

TROUBLE DIAGNOSIS
SRS-33
< SERVICE INFORMATION >
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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-49 .
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-3
.
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-47,
"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-47, "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.
Trouble Diagnosis: "AIR BAG" Warning Lamp Does Not Turn OnINFOID:0000000003532872
DIAGNOSTIC PROCEDURE 8
1.CHECK METER FUSE
Check the 10A fuse [No. 14, located in the fuse block (J/B)] .
Refer to PG-3
.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.REPLACE METER FUSE AND CHECK AGAIN
Replace 10A fuse [No. 14, located in the fuse block (J/B)] and turn ignition switch ON.
Does the fuse blow again?
Yes >> Replace harness.
No >> Inspection End.
BCIA0030E

SRS-34
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
3.CHECK HARNESS CONNECTIONS BETWEEN AIR BAG DIAGNOSIS SENSOR UNIT AND COMBINA-
TION METER
Inspect the harness and connectors between the air bag diagnosis sensor unit and the combination meter.
Do the harness or connectors have any visible damage?
Yes >> Replace harness.
No >> GO TO 4.
4.CHECK COMBINATION METER
Disconnect the air bag diagnosis sensor unit harness connectors and turn ignition switch ON.
Does
“AIR BAG” warning lamp turn on?
Yes >> Replace the air bag diagnosis sensor unit. Refer to SRS-47, "Removal and Installation" .
No >> Replace the combination meter. Refer to IP-10, "
Removal and Installation" .

DRIVER AIR BAG MODULE
SRS-35
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DRIVER AIR BAG MODULE
Removal and InstallationINFOID:0000000003532873
REMOVAL
CAUTION:
• Do not attempt to repair or replace damaged direct-connect SRS component connectors. If a driver
air bag direct-connect harness connector is damaged, the spiral cable must be replaced.
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least
3 minutes.
• When servicing the SRS, do not work from directly in front of air bag module.
1. Disconnect the negative and positive battery cables, then wait at least 3 minutes.
2. Remove the left and right side lids and bolts.
3. Lift the driver air bag module from the steering wheel.
4. Disconnect the horn connector and air bag harness, then remove the driver air bag module.
• For removal/installation of the direct-connect SRS connectors, refer to SRS-6, "
Direct-connect SRS
Component Connectors" .
CAUTION:
• When servicing the SRS, do not work from directly in front of air bag module.
• Always place air bag module with pad side facing upward.
• Do not insert any foreign objects (screwdriver, etc.) into air
bag module or harness connectors.
• Do not disassemble air bag module.
• Do not use old bolts after removal; replace with new bolts.
• Do not expose the air bag module to temperatures exceeding
90°C (194°F).
1. Horn harness 2. Steering wheel hook 3. Inflator harness
4. Side lids RH/LH 5. Driver air bag module 6. Steering wheel
WHIA0159E
LHIA0052E

SPIRAL CABLE
SRS-37
< SERVICE INFORMATION >
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SPIRAL CABLE
Removal and InstallationINFOID:0000000003532874
REMOVAL
CAUTION:
• Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least
3 minutes.
• When servicing the SRS, do not work from directly in front of air bag module.
1. Remove the steering wheel. Refer to PS-7
.
2. Remove the column cover upper and lower.
3. Remove wiper and washer switch connector, then pinch the tabs
at wiper and washer switch base and slide away from steering
column to remove.
4. While pressing tabs, pull lighting and turn signal switch toward
driver door and disconnect from base.
WHIA0233E
1. Steering wheel 2. Lighting and turn signal switch 3. Wiper and washer switch
4. Spiral cable 5. Driver air bag module connector 6. Column cover upper
7. Column assembly 8. Column cover lower 9. Screw (Do not remove)
10. Screw
LHIA0034E
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