2004 INFINITI QX56 ignition

SRS-20
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
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 CheckEHS000WG
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.
BF-1845D

SRS-22
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
Trouble Diagnosis With CONSULT-IIEHS000WH
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-39, "
CONSULT-II Data
Link Connector (DLC) Circuit" .
6. Touch "SELF-DIAG [CURRENT]".
BBIA0369E
BCIA0029E
BCIA0030E
BCIA0031E

SRS-28
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
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”.
If "AIR BAG" is not indicated, refer to GI-39, "
CONSULT-II Data
Link Connector (DLC) Circuit" .
6. Touch “SELF-DIAG [CURRENT]”.
BBIA0369E
BCIA0029E
BCIA0030E
BCIA0031E

TROUBLE DIAGNOSIS
SRS-29
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: August 20072004 QX56
7. If no malfunction is detected on “SELF-DIAG [CURRENT]”,
repair of SRS is completed. Go to step 8.
If any malfunction is detected on “SELF-DIAG [CURRENT]”, the
malfunctioning part is not repaired completely or another mal-
functioning part is detected. Go to SRS-22, "
DIAGNOSTIC
PROCEDURE 2" , and repair malfunctioning part completely.
8. 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.
9. Touch “BACK” key of CONSULT-II to “SELECT DIAG MODE”
screen. Touch “SELF-DIAG [PAST]”.
10. Check that no malfunction is detected on “SELF-DIAG [PAST]”.
11. Touch “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" .
SRS7 01
WHIA0152E
BCIA0031E
SRS7 02

SRS-30
TROUBLE DIAGNOSIS
Revision: August 20072004 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-39, "
CONSULT-II Data
Link Connector (DLC) Circuit" .
BBIA0369E
BCIA0029E
BCIA0030E

TROUBLE DIAGNOSIS
SRS-31
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: August 20072004 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-32, "
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
SRS7 02
BCIA0031E
WHIA0153E

TROUBLE DIAGNOSIS
SRS-37
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: August 20072004 QX56
Trouble Diagnosis Without CONSULT-IIEHS000WI
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:

TROUBLE DIAGNOSIS
SRS-43
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: August 20072004 QX56
Trouble Diagnosis: “AIR BAG” Warning Lamp Does Not Turn OffEHS000WJ
DIAGNOSTIC PROCEDURE 6
1. CHECK CONDITION OF AIR BAG MODULE
Inspect for deployed air bag modules or seat belt pre-tensioners.
Are 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