2007 INFINITI M35 steering wheel

DTC P0550 PSP SENSOR
EC-1183
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 M35/M45
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic ProcedureNBS005JM
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body.
Refer to EC-864, "
Ground Inspection" .
OK or NG
OK >> GO TO 2.
NG >> Repair or replace ground connections.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
12 R/GPower steering pressure
sensor[Engine is running]

Steering wheel: Being turned0.5 - 4.5V
[Engine is running]

Steering wheel: Not being turned0.4 - 0.8V
67 B/WSensor ground
(Power steering pressure
sensor)[Engine is running]

Warm-up condition

Idle speedApproximately 0V
68 L/YSensor power supply
(Power steering pressure
sensor)[Ignition switch: ON]Approximately 5V
1. Body ground M70 2. Body ground M16
PBIB2782E

DTC P0550 PSP SENSOR
EC-1185
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 M35/M45
6. CHECK PSP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 12 and PSP sensor terminal 2.
Refer to Wiring Diagram.
2. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 8.
NG >> GO TO 7.
7. DETECT MALFUNCTIONING PART
Check the following.

Harness connectors E206, E72

Harness connectors E11, F2

Harness for open or short between power steering pressure sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
8. CHECK PSP SENSOR
Refer to EC-1185, "
Component Inspection" .
OK or NG
OK >> GO TO 9.
NG >> Replace PSP sensor.
9. CHECK INTERMITTENT INCIDENT
Refer to EC-857, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
>>INSPECTION END
Component InspectionNBS005JN
POWER STEERING PRESSURE SENSOR
1. Reconnect all harness connectors disconnected.
2. Start engine and let it idle.
3. Check voltage between ECM terminal 12 and ground under the
following conditions.
Removal and InstallationNBS005JO
POWER STEERING PRESSURE SENSOR
Refer to PS-39, "HYDRAULIC LINE" . Continuity should exist.
Condition Voltage
Steering wheel: Being turned. 0.5 - 4.5V
Steering wheel: Not being turned. 0.4 - 0.8V
MBIB0126E

DTC P1568 ICC FUNCTION
EC-1279
[VK45DE]
C
D
E
F
G
H
I
J
K
L
MA
EC
Revision: 2007 April2007 M35/M45
DTC P1568 ICC FUNCTIONPFP:18995
On Board Diagnosis LogicNBS005ML
This self-diagnosis has the one trip detection logic.
The MIL will not light up for this diagnosis.
NOTE:

If DTC P1568 is displayed with DTC U1000 or U1001, first perform the trouble diagnosis for DTC
U1000, U1001. Refer to EC-865, "
DTC U1000, U1001 CAN COMMUNICATION LINE" .

If DTC P1568 is displayed with DTC U1010, first perform the trouble diagnosis for DTC U1010.
Refer to EC-868, "
DTC U1010 CAN COMMUNICATION" .

If DTC P1568 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605.
Refer to EC-1190, "
DTC P0605 ECM"
DTC Confirmation ProcedureNBS005MM
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Step 4 may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test
is expected to be easier, it is unnecessary to lift the vehicle.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Press MAIN switch on ICC steering switch.
4. Drive the vehicle at more than 40 km/h (25 MPH).
5. Press SET/COAST switch.
6. If DTC is detected, go to EC-1279, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II” above.
Diagnostic ProcedureNBS005MN
1. REPLACE ICC SENSOR INTEGRATED UNIT
1. Replace ICC sensor integrated unit.
2. Perform ACS-12, "
ACTION TEST" .
3. Check DTC of ICC sensor integrated unit. Refer to ACS-40, "
TROUBLE DIAGNOSIS FOR SELF-DIAG-
NOSTIC ITEMS" .
>>INSPECTION END
DTC No. Trouble Diagnosis Name DTC Detecting Condition Possible Cause
P1568
1568ICC functionECM detects a difference between signals
from ICC unit is out of specified range.

Harness or connectors
(The CAN communication line is open or
shorted.)

ICC sensor integrated unit

ECM
SEF058Y

EC-1440
[VK45DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2007 April2007 M35/M45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
Fuel PressureNBS005QT
Idle Speed and Ignition TimingNBS005QU
*: Under the following conditions:

Air conditioner switch: OFF

Electric load: OFF (Lights, heater fan & rear window defogger)

Steering wheel: Kept in straight-ahead position
Calculated Load ValueNBS005QV
Mass Air Flow SensorNBS005QW
*: Engine is warmed up to normal operating temperature and running under no load.
Intake Air Temperature SensorNBS005QX
Engine Coolant Temperature SensorNBS005QY
Fuel Tank Temperature SensorNBS005QZ
Crankshaft Position Sensor (POS)NBS005R0
Refer to EC-1081, "Component Inspection" .
Camshaft Position Sensor (PHASE)NBS005R1
Refer to EC-1088, "Component Inspection" .
A/F Sensor 1 HeaterNBS005R2
Fuel pressure at idling kPa (kg/cm2 , psi)Approximately 350 (3.57, 51)
Target idle speed No load* (in P or N position) 650 ± 50 rpm
Air conditioner: ON In P or N position 650 rpm or more
Ignition timing In P or N position 12° ± 5° BTDC
Condition Calculated load value% (Using CONSULT-II or GST)
At idle14 - 33
At 2,500 rpm12 - 25
Supply voltageBattery voltage (11 - 14V)
Output voltage at idle0.9 - 1.2V*
Mass air flow (Using CONSULT-II or GST)2.0 - 6.0 g·m/sec at idle*
7.0 - 20.0 g·m/sec at 2,500 rpm*
Temperature °C (°F) Resistance kΩ
25 (77)1.800 - 2.200
Temperature °C (°F) Resistance kΩ
20 (68)2.1 - 2.9
50 (122)0.68 - 1.00
90 (194)0.236 - 0.260
Temperature °C (°F) Resistance kΩ
20 (68)2.3 - 2.7
50 (122)0.79 - 0.90
Resistance [at 25°C (77°F)] 2.3 - 4.3Ω

FAX-4
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2007 April2007 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000FE
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
—
FAX-14—
FAX-5—
FAX-5
NVH in FAX and FSU sections
Refer to Front axle in this chart.
NVH in WT section
NVH in WT section
Refer to DRIVE SHAFT in this chart.
NVH in BR section
NVH in PS section
Possible cause and SUSPECTED PARTS
Excessive joint angle
Joint sliding resistance
Imbalance
Improper installation, looseness
Parts interference
Wheel bearing damage
FRONT AXLE AND FRONT SUSPENSION
FRONT AXLE
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
SymptomDRIVE
SHAFTNoise×× ××××× ××
Shake× × ××××× ××
FRONT
AXLENoise×××× ×××××
Shake×××× ×××××
Vibration×××× × × ×
Shimmy×××××××
Judder× × ×× ××
Poor quality ride or handling×××××

FRONT WHEEL HUB AND KNUCKLE
FAX-5
C
E
F
G
H
I
J
K
L
MA
B
FA X
Revision: 2007 April2007 M35/M45
FRONT WHEEL HUB AND KNUCKLEPFP:40202
On-Vehicle Inspection NDS000FF
Make sure that the mounting conditions (looseness, backlash) of each component and component conditions
(wear, damage) are normal.
WHEEL BEARING INSPECTION

Move wheel hub and bearing assembly in the axial direction by hand. Make sure there is no looseness of
wheel bearing.

Rotate wheel hub and make sure that is no unusual noise or other irregular conditions. If there is any of
irregular conditions, replace wheel hub and bearing assembly
Removal and InstallationNDS000FG
COMPONENT
REMOVAL
Wheel Hub and Bearing Assembly
1. Remove tires from vehicle with power tool.
2. Remove wheel sensor from steering knuckle. Refer to BRC-54, "
WHEEL SENSOR" .
CAUTION:
Do not pull on wheel sensor harness.
3. Remove brake hose bracket. Refer to BR-11, "
BRAKE TUBE AND HOSE" .
4. Remove torque member fixing bolts with power tool. Hang torque member in a place where it will not inter-
fere with work. Refer to BR-22, "
FRONT DISC BRAKE" .
CAUTION:
Do not depress brake pedal while brake caliper is removed.Axial end play : 0.05 mm (0.002 in) or less
1. Steering knuckle 2. Cotter pin 3. Splash guard
4. Wheel hub and bearing assembly 5. Washer
A: AWD models
Refer to GI-11, "
Components" , for the symbols in the figure.
SDIA3256E

FAX-6
FRONT WHEEL HUB AND KNUCKLE
Revision: 2007 April2007 M35/M45
5. Put matching mark on disc rotor and wheel hub and bearing
assembly, then remove disc rotor.
6. Remove cotter pin, then loosen hub lock nut with power tool.
(AWD)
7. Separate wheel hub and bearing assembly from drive shaft by
lightly tapping the end with a hammer (suitable tool) and a wood
block, and then remove hub lock nut. (AWD)
CAUTION:

Do not place drive shaft joint at an extreme angle. Also be
careful not to overextend slide joint.

Do not allow drive shaft to hang down without support for
housing (or joint sub-assembly), shaft and the other
parts.
NOTE:
Use a puller (suitable tool) if wheel hub and bearing assembly
and drive shaft cannot be separated even after performing the
above procedure.
8. Remove wheel hub and bearing assembly mounting bolts, and then remove splash guard and wheel hub
and bearing assembly from steering knuckle.
Steering knuckle
1. Refer to the procedure from 1 to 7 in “Wheel Hub and Bearing Assembly” FA X - 5 , "REMOVAL" .
2. Remove cotter pin (1), and then loosen the nut.
3. Remove steering outer socket (2) from steering knuckle (3) so
as not to damage ball joint boot (4) using the ball joint remover
(suitable tool).
CAUTION:
Temporarily tighten the nut to prevent damage to threads
and to prevent the ball joint remover (suitable tool) from
suddenly coming off.
4. Remove cotter pin of transverse link and steering knuckle, and
then loosen nut.
5. Remove transverse link from steering knuckle so as not to dam-
age ball joint boot using the ball joint remover (suitable tool).
CAUTION:
Temporarily tighten the nut to prevent damage to threads and to prevent ball joint remover (suit-
able tool) from suddenly coming off.
6. Remove fixing nut and bolt with power tool, and then remove steering knuckle from upper link. Refer to
FSU-8, "
Components" .
7. Remove wheel hub and bearing assembly mounting bolts, and then remove splash guard and wheel hub
and bearing assembly from steering knuckle.
INSPECTION AFTER REMOVAL
Check components for deformation, cracks, and other damage. Replace if there are.
Ball Joint Inspection
Check boots of transverse link and steering outer socket ball joint for breakage, axial play, and torque. Refer to
FSU-14, "
INSPECTION AFTER REMOVAL" , “TRANSVERSE LINK”, PS-23, "INSPECTION AFTER DISAS-
SEMBLY" , “POWER STEERING GEAR”.
SDIA2608E
SDIA1821E
SGIA1183E

FRONT WHEEL HUB AND KNUCKLE
FAX-7
C
E
F
G
H
I
J
K
L
MA
B
FA X
Revision: 2007 April2007 M35/M45
INSTALLATION

Installation is the reverse order of the removal. For tightening torque, refer to FAX-5, "COMPONENT" .

Perform the final tightening of each of parts under unladen conditions, which were removed when remov-
ing wheel hub and bearing assembly and steering knuckle. Check the wheel alignment. Refer to FSU-6,
"Wheel Alignment Inspection" (2WD), FSU-24, "Wheel Alignment Inspection" (AWD).

Adjust neutral position of steering angle sensor after checking the wheel alignment. Refer to BRC-6,
"Adjustment of Steering Angle Sensor Neutral Position" .

Check wheel sensor harness for proper connection. Refer to BRC-54, "WHEEL SENSOR" .

Assemble disc rotor and wheel hub and bearing assembly by
aligning each matching mark as shown in the figure when install-
ing disc rotor.
NOTE:
Refer to BR-27, "
DISC ROTOR INSPECTION" , for assembly
when removing disc rotor without matching mark.
SDIA2608E