lock INFINITI M35 2006 Factory Service Manual

TROUBLE DIAGNOSIS
STC-27
[RAS]
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Revision: 2006 January2006 M35/M45
STANDARD BY CONSULT-II
CAUTION:
The output signal indicates the RAS control unit calculation data. The normal values will be displayed
even in the event that the output circuit (harness) is open.
Monitor itemDATA MONITOR
Malfunction inspection
checklist
Condition Reference values
VHCL SPEED SE (km/h)Ignition switch ON or engine
running Almost in accordance with the speed-
ometer display. It is not a malfunction,
through it might not be corresponding
just after ignition switch is turned ON.STC-38, "
Inspection 4:
Vehicle Speed Signal"
STEERING ANG ()Turning steering wheel clock-
wise or counterclockwise.Displays the angle when the steering
wheel turns from the neutral positionSTC-38, "
Inspection 5:
Steering Angle Signal
Malfunction"
ENGINE SPEED (rpm) Engine runningAlmost in accordance with tachometer
displaySTC-43, "
Inspection 8:
Engine Speed Signal
Malfunction"
POWER STR SOL (A)Accelerate the vehicle from 0
to 100 km/h (0 to 62 MPH)0 km/h (0 MPH): Approx. 1.10 A
100 km/h (62 MPH): Approx. 0.54 ASTC-46, "Diagnosis
Chart by Symptom 2"
RR ST ANG-MAI (V)
Perform the ACTIVE TEST
and stroke the actuator (with
tires off the ground)Neutral: Approx. 2.4 V
Turn steering wheel to right for full
stroke: Approx. 4.4 V
Turn steering wheel to left for full
stroke: Approx. 0.4 VSTC-40, "Inspection 6:
Rear Main Signal and
Rear Sub Signal Mal-
function"RR ST ANG- SUB (V)
RR ST ANG-VOL (V)
Ignition switch ON or engine
runningApprox. 5 VSTC-40, "
Inspection 6:
Rear Main Signal and
Rear Sub Signal Mal-
function"
C/U VOLTAGE (V) Battery voltage (Approx. 12 V)STC-35, "
Inspection 1:
RAS Control Unit Mal-
function"
MOTOR VOLTAGE (V) Battery voltage (Approx. 12V)STC-35, "
Inspection 2:
Motor Power Supply
System"
MOTOR CURRENT (A)Perform the ACTIVE TEST
and stroke the actuator.It is normal when there is the current
output at strokeSTC-35, "
Inspection 2:
Motor Power Supply
System"
MTR CRNT OPE (A)Turning steering wheel clock-
wise or counterclockwise
while ignition switch is ON or
running the engineNeutral (Steering force is zero and
straight-ahead position): Approx. 0 A
The value is changed according to
steering left or right STC-37, "
Inspection 3:
RAS Motor Output
Malfunction"
STOP LAMP SWDepressing or releasing brake
pedalBrake pedal depressed: ONSTC-44, "
Inspection
10: Stop Lamp Switch
Harness"Brake pedal not depressed: OFF
RAS RELAY
Ignition switch ON or engine
runningIgnition switch ON: ONSTC-35, "
Inspection 2:
Motor Power Supply
System"
FAIL SAFE Not activatedSelf-diagnosis and
suspect system
inspection on DATA
MONITOR
WARNING LAMP (ON/OFF)RAS warning lamp ON: ON
RAS warning lamp OFF: OFFWarning lamp circuit
inspection

TROUBLE DIAGNOSIS
STC-29
[RAS]
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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

TROUBLE DIAGNOSIS
STC-33
[RAS]
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STC
Revision: 2006 January2006 M35/M45
3. CHECK RAS CONTROL UNIT POWER SUPPLY CIRCUIT
Turn ignition switch ON, and then check voltage between RAS con-
trol unit harness connector B127 and ground.
OK or NG
OK >> Power supply and ground circuit are normal.
NG >> Power supply circuit open or shorted. Repair or replace
any inoperative parts.
Trouble Diagnosis ChartNGS000EP
SELF-DIAGNOSIS
Terminal 27 – Ground : Battery voltage (Approx. 12 V)
SGIA1245E
Item
Reference Self-diagnosis function CONSULT-II
DTC
(warning
lamp blinks)Diagnosis item Diagnosis item
11 Control unit CONTROL_UNIT [ABNORMAL 1 - 9]STC-35
12 Motor power supplyMOTOR_VOLTAGE [LOW_VOLTAGE] (ꞏ a)
STC-35MOTOR_VOLTAGE [BAD_OBSTRCT] (ꞏ b)
13 Motor outputMOTOR_OUTPUT [ABNORMAL_SIG] (ꞏ a)
STC-37
MOTOR_OUTPUT [REV_CURRENT] (ꞏ c)
MOTOR_OUTPUT [NO_CURRENT] (ꞏ d)
MOTOR_OUTPUT [OVERCURRENT] (ꞏ e)
MOTOR_OUTPUT [MOTOR_LOCK] (ꞏ b)
21 Vehicle speed signal VEHICLE_SPEED_SEN [NO_SIGNAL]STC-38
22 Steering angle signalSTEERING_ANGLE_SEN [NO_CHANGE] (ꞏ a)
STC-38STEERING_ANGLE_SEN [NO_NEUT_STATE] (ꞏ b)
STEERING_ANGLE_SEN [NO_SIGNAL]
STEERING_ANGLE_SEN
24 Rear wheel steering angle (main)RR_ST_ANGLE_SENSOR [MAIN_SIGNAL] (ꞏ a)
STC-40
RR_ST_ANGLE_SENSOR [ABNORMAL_VOL] (ꞏ d)
RR_ST_ANGLE_SENSOR [OFFSET_SIG 1, 2] (ꞏ c)
25 Rear wheel steering angle (sub)RR_ST_ANGLE_SENSOR [SUB_SIGNAL] (ꞏ b)
RR_ST_ANGLE_SENSOR [ABNORMAL_VOL] (ꞏ d)
RR_ST_ANGLE_SENSOR [OFFSET_SIG 1, 2] (ꞏ c)
26 VDC VDCSTC-42
27 Engine speed signal MOTOR_OUTPUTSTC-43
— CAN COMM CIRCUIT
STC-43
— CONTROL UNIT

TROUBLE DIAGNOSIS
STC-37
[RAS]
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Revision: 2006 January2006 M35/M45
Inspection 3: RAS Motor Output MalfunctionNGS000ES
1. CHECK RAS CONTROL UNIT CONNECTOR
1. Turn ignition switch OFF, disconnect RAS control unit harness connector and RAS motor harness connec-
tor, and check terminal for deformation, disconnection, looseness, etc.
2. Reconnect harness connector securely, and perform self-diagnosis.
With CONSULT-II
Without CONSULT-II
Is above displayed on self-diagnosis display?
YES >> GO TO 2.
NG >> Connector terminal connection is loose, damaged, open, or shorted. Repair or replace the termi-
nal.
2. CHECK RAS MOTOR RESISTANCE
1. Turn ignition switch OFF, and disconnect RAS motor harness connector B105.
2. Check the resistance RAS motor connector.
OK or NG
OK >> GO TO 3.
NG >> RAS motor malfunction. Replace RAS motor.
3. CHECK RAS MOTOR HARNESS
1. Connect RAS motor harness connector B105.
2. Disconnect RAS control unit harness connector B127.
3. Check continuity RAS control unit harness connector B127.
OK or NG
OK >> RAS control unit malfunction. Replace RAS control unit.
NG >> Harness between RAS motor and RAS control unit open
or shorted. Repair or replace harness.
Self-diagnosis results
MOTOR_OUTPUT [ABNORMAL_SIG] (ꞏ a)
MOTOR_OUTPUT [REV_CURRENT] (ꞏ c)
MOTOR_OUTPUT [NO_CURRENT] (ꞏ d)
MOTOR_OUTPUT [OVERCURRENT] (ꞏ e)
MOTOR_OUTPUT [MOTOR_LOCK] (ꞏ b)
DTC (warning lamp blinks)
13
Terminal 1 – 2 : Approx. 0.6
SGIA1268E
Terminal 38 – 39 : Continuity exist.
SGIA1269E

TROUBLE DIAGNOSIS
STC-41
[RAS]
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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-48
[RAS]
TROUBLE DIAGNOSIS
Revision: 2006 January2006 M35/M45
Check RAS Static/Dynamic CharacteristicsNGS000F3
1. CHECK (1): RAS ACTUATOR STROKE
Perform CONSULT-II “ACTIVE TEST”, and then check the actuator
stroke when turning the steering wheel clockwise or counterclock-
wise by 180
or more.
OK or NG
OK >> GO TO 2.
NG >> GO TO 3.
2. CHECK (2): RAS ACTUATOR STROKE
Perform CONSULT-II “ACTIVE TEST“. When turning the steering
wheel in neutral position (A), the rear wheel turns clockwise/counter-
clockwise periodically. At that time, check actuator stroke (B).
OK or NG
OK >> RAS static/dynamic characteristics inspection is com-
pleted.
NG >> GO TO 3.
3. CHECK RAS MOTOR
Check RAS motor itself separated from other parts. Refer to STC-49, "
RAS MOTOR" .
OK or NG
OK >> GO TO 4.
NG >> RAS motor malfunction. Check the stroke again after replacing.
4. CHECK REAR WHEEL STEERING ANGLE SENSOR
Check rear wheel steering angle sensor separated from other parts. Refer to STC-49, "
REAR WHEEL
STEERING ANGLE SENSOR" .
OK or NG
OK >> GO TO 5.
NG >> Rear wheel steering angle sensor malfunction. Check the stroke again after replacing.
5. CHECK RAS CONTROL UNIT
Replace RAS control unit. Check the symptom of malfunction again.
Is the malfunction corrected?
YES >> RAS control unit malfunction
NO >> GO TO 6.
6. REPLACE RAS ACTUATOR ASSEMBLY
Replace RAS actuator assembly. Check the symptom of malfunction again.
Is the malfunction corrected?
YES >> RAS actuator malfunction
NO >> Check rear suspension components. Refer to RSU-7, "
Components" . Neutral position (A)
Actuator stroke (B) : 2.8 - 3.0 mm (0.110 - 0.118 in)
SGIA1240E
Actuator stroke (B) : 2.3 - 2.5 mm (0.091 - 0.098 in)
SGIA1240E

PREPARATION
TF-7
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Revision: 2006 January2006 M35/M45
Commercial Service ToolsNDS000D7
To o l n a m eDescription
Puller
Removing companion flange
Flange wrench
Removing and installing self-lock nut
Puller
Removing front drive shaft front bearing
Removing front drive shaft rear bearing
Power tool
Loosening bolts and nuts
NT077
NT771
ZZB0823D
PBIC0190E

TF-26
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2006 January2006 M35/M45
TROUBLE DIAGNOSIS FOR SYSTEMPFP:00000
Power Supply Circuit for AWD Control UnitNDS000DN
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
DIAGNOSTIC PROCEDURE
1. CHECK POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect AWD control unit harness connector.
3. Turn ignition switch “ON”. (Do not start engine.)
4. Check voltage between AWD control unit harness connector ter-
minals and ground.
5. Turn ignition switch “OFF”.
6. Check voltage between AWD control unit harness connector ter-
minals and ground.
OK or NG
OK >> GO TO 2.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
10A fuse [No.33, located in the fuse block (J/B)]
10A fuse [No.82, located in the IPDM E/R]
Harness for short or open between battery and AWD control unit harness connector terminal 9
Harness for short or open between ignition switch and AWD control unit harness connector ter-
minal 7
Ignition switch. Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .
Monitor item [Unit] Condition Display value (Approx.)
BATTERY VOLT [V] Ignition switch: ON Battery voltage
Connector Terminal Voltage (Approx.)
F1097 - Ground
Battery voltage
9 - Ground
SDIA2319E
Connector Terminal Voltage (Approx.)
F1097 - Ground 0V
9 - Ground Battery voltage
SDIA2320E

TROUBLE DIAGNOSIS FOR SYSTEM
TF-29
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Revision: 2006 January2006 M35/M45
1. CHECK AWD SOLENOID SIGNAL
With CONSULT-II
1. Start engine.
2. Select “DATA MONITOR” mode for “ALL MODE AWD/4WD” with CONSULT- I I .
3. Read out the value of “ETS SOLENOID”.
*: The values are changed by throttle opening and engine speed.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.
2. CHECK POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect AWD control unit harness connector.
3. Turn ignition switch “ON”. (Do not start engine.)
4. Check voltage between AWD control unit harness connector ter-
minal 9 and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
10A fuse [No. 33, located in the fuse block (J/B)]
Harness for short or open between battery and AWD
control unit harness connector terminal 9
3. CHECK AWD SOLENOID CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect AWD control unit harness connector.
3. Check resistance between AWD control unit harness connector
terminals 1 and 2.
OK or NG
OK >> GO TO 6.
NG >> GO TO 4.
Condition Display value
Engine runningAt idle speed Approx. 0.000A
When depressing accelerator
pedalApprox. 0.000 - 0.500A*
SDIA1885E
Connector Terminal Voltage (Approx.)
F109 9 - Ground Battery voltage
SDIA1884E
Connector Terminal Resistance (Approx.)
F109 1 - 2 (Ground) 2.45
SDIA1928E

TF-34
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2006 January2006 M35/M45
2. CHECK AWD CONTROL UNIT POWER SUPPLY CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect AWD control unit harness connector.
3. Turn ignition switch “ON”. (Do not start engine.)
4. Check voltage between AWD control unit harness connector ter-
minals and ground.
5. Turn ignition switch “OFF”.
6. Check voltage between AWD control unit harness connector ter-
minals and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following. If any items are damaged, repair or
replace damaged parts.
10A fuse [No.33, located in the fuse block (J/B)]
10A fuse [No.82, located in the IPDM E/R]
Harness for short or open between battery and AWD control unit harness connector terminal 9
Harness for short or open between ignition switch and AWD control unit harness connector ter-
minal 7
Ignition switch. Refer to PG-3, "POWER SUPPLY ROUTING CIRCUIT" .
3. CHECK AWD CONTROL UNIT GROUND CIRCUIT
1. Turn ignition switch “OFF”.
2. Disconnect AWD control unit harness connector.
3. Check continuity between AWD control unit harness connector
F109 terminals 10, 11 and ground.
Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
Connector Terminal Voltage (Approx.)
F1097 - Ground
Battery voltage
9 - Ground
SDIA2319E
Connector Terminal Voltage (Approx.)
F1097 - Ground 0V
9 - Ground Battery voltage
SDIA2320E
Continuity should exist.
SDIA1883E