2006 INFINITI M35 air condition

SRS-20
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Warning lamp examples
“AIR BAG” warning lamp operation — User mode
—SRS condition Reference item
No malfunction is detected.
No further action is necessary.—
The system is malfunctioning and
needs to be repaired as indicated.Go to SRS-21, "DIAGNOSTIC
PROCEDURE 2" or SRS-27,
"DIAGNOSTIC PROCEDURE 5" .
Air bag is deployed.
Seat belt pre-tensioner is deployed.Go to SRS-50, "
COLLISION DIAG-
NOSIS" .
Diagnosis sensor unit is malfunction-
ing.
Air bag power supply circuit is mal-
functioning.
SRS air bag warning lamp circuit is
malfunctioning.Go to SRS-36, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Turn OFF" .
Diagnosis sensor unit is malfunction-
ing.
Air bag warning lamp circuit is mal-
functioning.Go to SRS-37, "
Trouble Diagnosis:
“AIR BAG” Warning Lamp Does Not
Turn ON" .
SHIA0011E
SHIA0012E
SHIA0013E
SHIA0014E

SRS-42
FRONT PASSENGER AIR BAG MODULE
Revision: 2006 January2006 M35/M45
FRONT PASSENGER AIR BAG MODULEPFP:K8515
Removal and InstallationNHS0009E
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 fixing 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 instrument panel & pad assemblies. Refer to IP-10,
"INSTRUMENT PANEL ASSEMBLY" .
NOTE:
The figure shows installed condition of the front passenger air
bag module. (Under view of the module installed without glove
box cover.)
2. Remove the front passenger air bag module from the instrument panel & pad assemblies.
Remove the 2 screws.
Remove the air bag from the rear side hook. ( shows the
backward direction of the vehicle.)
INSTALLATION
Install in the reverse order of removal.
CAUTION:
Be careful not to damage the harness while installing.
After the work is completed, make sure no system malfunction is detected by air bag warning
lamp.
In case that malfunction is detected by the air bag warning lamp, reset by the self-diagnosis func-
tion and delete the memory by CONSOULT
II.
In case that malfunction is still detected after the above operation, peform self-diagnosis to repair
malfunctions. Refer to SRS-19, "
SRS Operation Check" . Passenger air bag module connector-A
Passenger air bag module fixing bolt-B
Fixing bolt
: 24.5 Nꞏm (2.5 kg
m, 18 ftlb)PHIA0868J
PHIA0888J

TROUBLE DIAGNOSIS
STC-9
[EPS]
C
D
E
F
H
I
J
K
L
MA
B
STC
Revision: 2006 January2006 M35/M45
For Fast and Accurate Trouble DiagnosisNGS000E1
Check the following items with the vehicle stopped
Is air pressure and size of tires proper?
Is the specified part used for the steering wheel?
Is control unit a genuine part?
Are there any fluid leakage from steering gear assembly, power steering oil pump, and hydraulic pipes,
etc? Refer to PS-8, "
POWER STEERING FLUID" .
Is the fluid level proper? Refer to PS-8, "POWER STEERING FLUID" .
Is the wheel alignment adjusted properly? Refer to FSU-19, "SERVICE DATA AND SPECIFICATIONS
(SDS)" (2WD), FSU-36, "SERVICE DATA AND SPECIFICATIONS (SDS)" (AWD).
Are there any damage or modification to suspension or body resulting in increased weight or altered
ground clearance?
Check each link installation condition of suspension and axle.
Check each connector connection condition.
Check the following items while driving the vehicle
Check conditions when the malfunction occurred (5W 1H).
Is the engine condition normal?
Basic InspectionNGS000E2
POWER SUPPLY CIRCUIT TERMINAL LOOSENESS AND BATTERY
Check battery terminals for looseness on both positive and negative ones and ground connection. Also make
sure that battery voltage does not drop.
Inspection: Power Steering Control Unit Power Supply Circuit and GroundNGS000E3
1. CHECK POWER STEERING CONTROL UNIT CONNECTOR
Turn ignition switch OFF, disconnect power steering control unit harness connector, and check terminal for
deformation, disconnection, looseness, etc.
OK or NG
OK >> GO TO 2.
NG >> Connector terminal connection is loose, damaged, open, or shorted. Repair or replace the termi-
nal.
2. CHECK POWER STEERING CONTROL UNIT GROUND CIRCUIT
Disconnect power steering control unit harness connector M8, and
then check continuity between power steering control unit harness
connector M8 and ground.
OK or NG
OK >> GO TO 3.
NG >> Ground circuit open or shorted. Repair or replace any
inoperative parts. Terminal 2 – Ground : Continuity exist.
SGIA1231E

TROUBLE DIAGNOSIS
STC-29
[RAS]
C
D
E
F
H
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K
L
MA
B
STC
Revision: 2006 January2006 M35/M45
How to Erase Self-Diagnostic Results
1. Perform applicable inspection of malfunctioning item and then repair or replace.
2. Start engine, and touch “START (NISSAN BASED VHCL)” “RAS/HICAS” “SELF-DIAG RESULTS” and
“ERASE” in this order to erase the diagnostic memory.
CAUTION:
If memory cannot be erased, repeat step 1, 2.
3. Perform self-diagnosis again, and make sure that DTC memory is erased.
C1912 MOTOR_VOLTAGE [BAD_OBSTRCT] (ꞏ b)The motor power supply voltage is
inputting for some time with motor
power supply OFF by RAS control
unit.STC-35
C1913 MOTOR_OUTPUT [ABNORMAL_SIG] (ꞏ a)When the motor current value is
10A or more, actual output is
excessively low and the condition
continues for some time.STC-37
C1902 MOTOR_OUTPUT [REV_CURRENT] (ꞏ c)The current flows in the opposite
direction when the motor current is
output. STC-37
C1903 MOTOR_OUTPUT [NO_CURRENT] (ꞏ d)The current flows when the motor
current is not output. STC-37
C1904 MOTOR_OUTPUT [OVERCURRENT] (ꞏ e)The excessive high current flows
when the motor current is output.STC-37
C1910 MOTOR_OUTPUT [MOTOR_LOCK] (ꞏ b)When 17 A or more current flows to
the motor, the rear wheel steering
angle sensor signal does not
change for some time.STC-37
C1919 VEHICLE_SPEED_SEN [NO_SIGNAL]No vehicle speed signal is input for
some time.STC-38
C1900
CONTROL_UNIT [ABNORMAL1 - 9] Control unit malfunctionSTC-35
C1901
C1905
C1906
C1907
C1908
C1909
C1922
C1928
C1920 STEERING_ANGLE_SEN [NO_SIGNAL]No steering angle signal is input for
some time.STC-38
C1926 STEERING_ANGLE_SEN
An unexpected signal is input.
Steering angle sensor outputs the
malfunction signal.STC-38
C1929 VDCABS actuator and electric unit (con-
trol unit) outputs the malfunction
signal.STC-42
U1000 CAN COMM CIRCUITWhen a control unit (except for
RAS) is not transmitting or receiving
CAN communication signal 2 sec-
onds or less.STC-43
U1010 CONTROL_UNIT [CAN]When detected error during the ini-
tial diagnosis of CAN controller of
each control unit.STC-43
DTC code Diagnostic item Diagnostic item is detected when... Check items

STC-32
[RAS]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
For Fast and Accurate Trouble DiagnosisNGS000EN
Check the following items with the vehicle stopped
Is air pressure and size of tires proper?
Is the specified part used for the steering wheel?
Is control unit a genuine part?
Are there any fluid leakage from steering gear assembly, power steering oil pump, and hydraulic pipes,
etc? Refer to PS-8, "
POWER STEERING FLUID" .
Is the fluid level proper? Refer to PS-8, "POWER STEERING FLUID" .
Is the wheel alignment is adjusted properly? Refer to FSU-19, "SERVICE DATA AND SPECIFICATIONS
(SDS)" (2WD), FSU-36, "SERVICE DATA AND SPECIFICATIONS (SDS)" (AWD).
Are there any damage or modification to suspension or body resulting in increased weight or altered
ground clearance?
Check each link installation condition of suspension and axle.
Is the battery voltage proper?
Check each connector connection condition.
Check the following items while driving the vehicle
Conditions when the error occurred (5W 1H).
Is the engine is normal?
Basic InspectionNGS000EO
BASIC INSPECTION 1: POWER SUPPLY CIRCUIT TERMINAL LOOSENESS AND BATTERY
Check battery terminals for looseness on both positive and negative ones and ground connection. Also make
sure that battery voltage does not drop.
BASIC INSPECTION 2: RAS WARNING LAMP INSPECTION
1. Make sure RAS warning lamp turns on when ignition switch is turned ON.
If it does not turn on, refer to STC-33, "Trouble Diagnosis Chart" .
2. Make sure that RAS warning lamp turns off when the engine is started after ignition switch is turned ON. If
it does not turn off, perform self-diagnosis. Refer to STC-28, "
SELF-DIAG RESULT MODE" .
3. Always erase DTC memory after completing self-diagnosis. Refer to STC-29, "
How to Erase Self-Diag-
nostic Results" .
BASIC INSPECTION 3: RAS CONTROL UNIT POWER SUPPLY CIRCUIT AND GROUND CIR-
CUIT INSPECTION
1. CHECK RAS CONTROL UNIT CONNECTOR
Turn ignition switch OFF, disconnect RAS control unit harness connector, and check terminal for deformation,
disconnection, looseness, etc.
OK or NG
OK >> GO TO 2.
NG >> Poor connection of connector terminal. Repair or replace the terminal.
2. CHECK RAS CONTROL UNIT GROUND CIRCUIT
1. Disconnect RAS control unit harness connector B127, and then
check continuity between RAS control unit harness connector
B127 and ground.
OK or NG
OK >> GO TO 3.
NG >> Ground circuit open or shorted. Repair or replace any
inoperative parts. Terminal 34 – Ground : Continuity
SGIA1244E

TROUBLE DIAGNOSIS
STC-39
[RAS]
C
D
E
F
H
I
J
K
L
MA
B
STC
Revision: 2006 January2006 M35/M45
3. CHECK STEERING ANGLE SENSOR POWER SUPPLY AND GROUND CIRCUIT
1. Turn ignition switch OFF, and disconnect steering angle sensor harness connector M47.
2. Check continuity steering angle sensor harness connector M47
and ground.
3. Turn ignition switch ON, and then check voltage steering angle
sensor harness connector M47 and ground.
OK or NG
OK >> GO TO 4.
NG >> Steering angle sensor power supply and ground circuit
open or shorted. Repair or replace the applicable mal-
functioning circuit.
4. DATA MONITOR
1. Connect steering angle sensor harness connector.
2. Select ”DATA MONITOR“ on “STEERING ANG” mode, and then check the steering angle.
OK or NG
OK >> RAS control unit malfunction. Replace RAS control unit.
NG >> Replace steering angle sensor and adjust neutral position of steering angle sensor. Refer to BRC-
6, "Adjustment of Steering Angle Sensor Neutral Position" .
Steering angle sensor Ground Continuity
Te r m i n a l 2 — Ye s
SGIA1270E
Steering angle sensor Ground Continuity
Terminal 3 — Battery voltage (approx. 12V)
SGIA1271E
Steering condition DATA MONITOR
Straight-ahead position – 3.5 - +3.5
Turn wheel to the right by 90Approx. R 90
Turn wheel to the left by 90Approx. R 90

TROUBLE DIAGNOSIS
STC-41
[RAS]
C
D
E
F
H
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K
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MA
B
STC
Revision: 2006 January2006 M35/M45
3. CHECK (2): REAR WHEEL STEERING ANGLE SENSOR POWER SUPPLY AND GROUND CIRCUIT
1. Turn ignition switch OFF, disconnect rear wheel steering angle sensor harness connector B104 and RAS
control unit harness connector B127.
2. Check continuity each harness connector of rear wheel steering
angle sensor harness connector B 104 and RAS control unit
harness connector B127.
OK or NG
OK >> RAS control unit malfunction. Replace RAS control unit.
NG >> Harness between rear wheel steering angle sensor and RAS control unit open or shorted. Repair
or replace harness.
4. CHECK REAR WHEEL STEERING ANGLE SENSOR OUTPUT SIGNAL
1. Connect rear wheel steering angle sensor harness connector B104.
2. Check voltage RAS control unit harness connector B127 when
starting the engine and turning the steering wheel from neutral
position clockwise/counterclockwise by 180
.
CAUTION:
There is approximately 1 V or more difference between main output and sub output at straight-ahead position, inspection
results are “NG”.
OK or NG
OK >> RAS control unit malfunction. Replace RAS control unit.
NG >> GO TO 5.
SGIA1274E
Rear wheel steering angle sensor RAS control unit Continuity
Terminal 1 Terminal 5 Yes
Te r m i n a l 3 Te r m i n a l 1 5 Ye s
SGIA1275E
Steering conditionRear wheel steering angle sensor
Rear main output
Terminal 4 (+) - 15 (-)Rear sub output
Terminal 7 (+) - 15 (-)
Straight-ahead (neutral position) Approx. 2.4 V Approx. 2.4 V
Turn wheel to the right by 180
Approx. 4.4 V Approx. 4.4 V
Turn wheel to the left by 180
Approx. 0.4 V Approx. 0.4 V

STC-44
[RAS]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Inspection 10: Stop Lamp Switch HarnessNGS000EZ
1. CHECK STOP LAMP SWITCH SIGNAL
With CONSULT-II
Select “STOP LAMP SW” on DATA MONITOR, and then check the stop lamp switch.
Without CONSULT-II
1. Turn ignition switch OFF, disconnect RAS control unit harness connector B127.
2. Operate brake pedal, and then check voltage between RAS con-
trol unit harness connector B127 and ground.
OK or NG
OK >> Stop lamp switch harness is normal.
NG >> Stop lamp switch harness malfunction. Repair circuit.
Inspection 11: RAS Warning Lamp HarnessNGS000F0
1. CHECK RAS WARNING LAMP SIGNAL
Turn ignition switch ON, and then check voltage between RAS con-
trol unit harness connector B127 and ground.
OK or NG
OK >> Perform self-diagnosis. Refer to STC-28, "SELF-DIAG
RESULT MODE" .
NG >> GO TO 2.
Measuring condition Data monitor
Brake pedal depressed ON
Brake pedal released OFF
SGIA1277E
RAS C/U Ground Measuring condition Voltage
Terminal 22 —Brake pedal depressed Battery voltage (approx. 12 V)
Brake pedal released Approx. 0 V
RAS C/U Ground Voltage
Terminal26 —Warning lamp OFF : Approx. 2.8 V or more
Warning lamp ON : Approx. 1.4 V or less
SGIA1278E