2007 INFINITI M35 ignition

SRS-20
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
SRS Operation CheckNHS00096
DIAGNOSTIC PROCEDURE 1
Checking Air Bag Operation by Using “AIR BAG” Warning Lamp — User Mode
1. Turn the ignition switch from OFF to ON, and make sure the air bag warning lamp blinks.
2. Compare the SRS air bag warning lamp blinking pattern with the
examples.
BF-1845D

SRS-28
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
4. Make sure 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.
Refer to SRS-20, "
Checking Air Bag Operation by Using “AIR
BAG” Warning Lamp — User Mode" .
SRS702

SRS-30
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
3. Touch “TROUBLE DIAG RECORD”.
NOTE:
With “TROUBLE DIAG RECORD”, diagnosis results previously
erased by a reset operation can be displayed.
4. Diagnostic code is displayed on “TROUBLE DIAG RECORD”.
5. Touch “PRINT”.
6. Compare diagnostic codes to SRS-30, "
DTC No. Index (“SELF-
DIAG [PAST]” or “TROUBLE DIAG RECORD”)" .
7. Touch “BACK” key of CONSULT-II until “SELECT SYSTEM”
appears.
8. Turn ignition switch OFF, then turn off and disconnect CON-
SULT-II, and both battery cables.
9. Repair the system as outlined by the “Repair order” in “Intermit-
tent Malfunction Diagnostic Code Chart”, that corresponds to the
self-diagnosis result. For replacement procedure of component
parts, refer to the Removal and Installation procedure for the appropriate component.
10. Go to SRS-27, "
DIAGNOSTIC PROCEDURE 3" , for final checking.
DTC No. Index (“SELF-DIAG [PAST]” or “TROUBLE DIAG RECORD”)
SRS697
SHIA0182E
Diagnostic item ExplanationRepair order
“Recheck SRS at each replacement”
NO DTC IS
DETECTED.When malfunction is
indicated by the “AIR
BAG” warning lamp in
User mode.

Low battery voltage (Less than 9V)
Go to SRS-27, "DIAGNOSTIC PRO-
CEDURE 3" .

No malfunction is detected.
Go to SRS-27, "DIAGNOSTIC PRO-
CEDURE 3" .
DRIVER AIRBAG
MODULE
[OPEN]
[B1049] [B1054]

Driver air bag module circuit is open (including the spiral cable). 1. Visually check the wiring harness
connection.
2. Replace the harness if it has visible
damage.
3. If the harness check result is OK,
replace driver air bag module, diag-
nosis sensor unit and spiral cable. DRIVER AIRBAG
MODULE
[VB-SHORT]
[B1050] [B1055]

Driver air bag module circuit is shorted to a power supply circuit
(including the spiral cable).
DRIVER AIRBAG
MODULE
[GND-SHORT]
[B1051] [B1056]

Driver air bag module circuit is shorted to ground (including the
spiral cable).
DRIVER AIRBAG
MODULE
[SHORT]
[B1052] [B1057]

Driver air bag module circuit is shorted between lines.

TROUBLE DIAGNOSIS
SRS-35
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: 2007 April2007 M35/M45
Trouble Diagnosis without CONSULT-IINHS00098
DIAGNOSTIC PROCEDURE 6
Inspecting SRS Malfunctioning Parts by 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 the steps 1 to 3 twice. (Perform three times in all.)
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
PHIA0532E
PHIA1233E
SHIA0028E

TROUBLE DIAGNOSIS
SRS-39
C
D
E
F
G
I
J
K
L
MA
B
SRS
Revision: 2007 April2007 M35/M45
Trouble Diagnosis: “AIR BAG” Warning Lamp Does Not Turn OFFNHS00099
DIAGNOSTIC PROCEDURE 7
1. CHECK THE DEPLOYMENT OF AIR BAG MODULE
Is air bag module deployed?
YES or NO
YES >> Refer to SRS-54, "COLLISION DIAGNOSIS" .
NO >> GO TO 2.
2. CHECK THE AIR BAG FUSE
Check 10A fuse [No.13, located in fuse block (J/B)].
Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK AIR BAG FUSE AGAIN
Replace “AIR BAG” fuse and turn ignition switch ON.
Does the
“AIR BAG” fuse blow again?
YES >> Repair or replace main harness.
NO >>INSPECTION END
4. CHECK DIAGNOSIS SENSOR UNIT
Connect CONSULT-II and touch “START”.
Is “AIR BAG” displayed on CONSULT-II?
YES or NO
YES >> GO TO 5.
NO >> Visually check the wiring harness connection of diagno-
sis sensor unit. If the harness connection check result is
OK, replace diagnosis sensor unit.
5. CHECK HARNESS CONNECTION
Is harness connection between warning lamp and diagnosis sensor unit OK?
OK or NG
OK >> Replace diagnosis sensor unit.
NG >> Connect “AIR BAG” warning lamp and diagnosis sensor unit connector properly. If “AIR BAG”
warning lamp still does not go off, replace harness.
BCIA0030E

SRS-40
TROUBLE DIAGNOSIS
Revision: 2007 April2007 M35/M45
Trouble Diagnosis: “AIR BAG” Warning Lamp Does Not Turn ONNHS0009A
DIAGNOSTIC PROCEDURE 8
1. CHECK METER FUSE
Check 10A fuse [No.14, located in fuse block (J/B)].
Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. CHECK METER FUSE AGAIN
Replace 10A fuse [No.14, located in fuse block (J/B)] and turn ignition switch ON.
Does the meter fuse blow again?
YES >> Repair or replace the related harness.
NO >>INSPECTION END
3. CHECK HARNESS CONNECTION BETWEEN DIAGNOSIS SENSOR UNIT AND COMBINATION
METER
Disconnect diagnosis sensor unit connector and turn ignition switch ON.
Does “AIR BAG” warning lamp turn ON?
YES or NO
YES >> Replace diagnosis sensor unit.
NO >> Replace combination meter assembly.

SRS-42
DRIVER AIR BAG MODULE
Revision: 2007 April2007 M35/M45
DRIVER AIR BAG MODULEPFP:K8510
Removal and InstallationNHS0009C
REMOVAL
CAUTION:

Before servicing, turn ignition switch OFF, disconnect both battery terminal and wait at
least 3 minutes.

Do not use air tools or electric tools for servicing.

Always work from the side of air bag module. Do not work from the front of it.

Always place air bag module with pad side facing upward.

Do not use old TORX bolts after removal; replace with new bolts.

Do not make an impact to the air bag module by dropping etc. Replace the air bag module if it has
been dropped or sustained an impact.
1. Remove the side lids (left/right).
2. Remove the driver air bag module.

Using Tamper resistant TORX bit, remove the TORX bolt at left and right.

Disconnect the harness connector with the driver air bag module rassed a bit.
NOTE:

For installing/removing driver air bag module connector,
insert thin screwdriver wrapped in tape into notch, lift lock
and remove connector.

Install connector with lock raised, and push lock into con-
nector.

After installing the connector, make sure that the lock is
pushed securely into it.
3. Remove the screws then remove the steering switch.
PHIA1382E
1. Driver air bag module 2. Steering switch 3. Screw
4. Spring 5. Bracket 6. Screw
7. Side lid (left/right) 8. TORX bolt
PHIA0953J

SRS-44
SPIRAL CABLE
Revision: 2007 April2007 M35/M45
SPIRAL CABLEPFP:25554
Removal and InstallationNHS0009D
REMOVAL
CAUTION:

Before servicing, turn ignition switch OFF, disconnect both battery terminal and wait at least 3
minutes.

Do not use air tools or electric tools for servicing.

Do not disassemble the spiral cable.

Do not arrow oil, grease, detergent or water to come in contact with the spiral cable.

Do not make an impact to the spiral cable by dropping etc. Replace the spiral cable if it has been
dropped or sustained an impact.
1. Remove the air bag module. Refer to SRS-42, "
Removal and Installation" .
2. Remove the steering wheel. Refer to PS-12, "
Removal and Installation" .
3. Remove the column cover.
4. Remove the wiper washer switch, then remove light and turn signal switch from the spiral cable.
5. Remove the spiral cable.

Disconnect the horn switch connector (shown as A in the fig-
ure).

Disconnect the spiral cable connector (shown as B in the fig-
ure).

Loosen the spiral cable fixing screws.

Shift the spiral cable forward a bit while pushing the pawl
located above the spiral cable.

Disconnect the steering wheel switch connector (shown as C
in the figure).
NOTE:
Disconnect the spiral cable connector after disconnecting the
horn switch connector.
INSTALLATION
Install in the reverse order of removal.
P H I A 111 2 E
1. Steering wheel 2. Steering column cover (lower) 3. Light and turn signalswitchs
4. Wiper washer switch 5. Spiral cable 6. Steering column cover (upper)
7. Steering column assembly 8. Driver air bag module connector
PHIA0886J