warning INFINITI M35 2007 Factory Service Manual

TROUBLE DIAGNOSIS FOR SYSTEM
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Revision: 2007 April2007 M35/M45
2. CHECK 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 3.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3. CHECK DTC
Start engine.
Does AWD warning lamp turn OFF?
YES >>INSPECTION END
NO >> Perform the self-diagnosis, repair or replace damaged parts. Refer to TF-22, "
SELF-DIAG
RESULT MODE" .
AWD Control UnitNDS000DO
DIAGNOSTIC PROCEDURE

Check the following if “CONTROLLER FAILURE [C1201]” is displayed in self-diagnosis results of CON-
SULT-II.
1. PERFORM SELF-DIAGNOSIS
With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “SELF-DIAG RESULTS” mode for “ALL MODE AWD/4WD” with CONSULT-II.
3. Touch “ERASE”.
4. Turn ignition switch “OFF” and wait at least 10 seconds.
5. Perform the self-diagnosis again.
Is the
“CONTROLLER FAILURE [C1201]” displayed?
YES >> Replace AWD control unit. Refer to TF-39, "AWD CONTROL UNIT" .
NO >>INSPECTION END
ABS SystemNDS000DP
DIAGNOSTIC PROCEDURE

Check the following if “ABS SYSTEM [C1203]” is displayed in self-diagnosis results of CONSULT-II.
1. CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
Perform self-diagnosis with ABS actuator and electric unit (control unit). Refer to BRC-24, "
Self-Diagnosis" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 2.Continuity should exist.
SDIA1883E

TF-28
TROUBLE DIAGNOSIS FOR SYSTEM
Revision: 2007 April2007 M35/M45
2. CHECK DTC AFTER DRIVING
1. Turn ignition switch “OFF”.
2. Start engine and drive vehicle at 30 km/h (19 MPH) for at least 1 minute.
3. Make sure that ABS warning lamp turns OFF.
4. Perform erase self-diagnosis results. Refer to TF-22, "
How to Erase Self-Diagnostic Results" .
5. Stop vehicle and turn ignition switch “OFF”.
6. Turn ignition switch “ON”.
7. Perform self-diagnosis.
Is the
“ABS SYSTEM [C1203]” displayed?
YES >> GO TO 3.
NO >>INSPECTION END
3. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 4.
NG >> Check AWD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
4. CHECK DTC
Perform the self-diagnosis, after driving a vehicle for a while.
OK or NG
OK >>INSPECTION END
NG >> Perform self-diagnosis with ABS actuator and electric unit (control unit) again. Refer to BRC-24,
"Self-Diagnosis" .
AWD SolenoidNDS000DQ
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Data are reference value.
*: The values are changed by throttle opening and engine speed.
DIAGNOSTIC PROCEDURE

Check the following if “4WD SOLENOID [C1204]” is displayed in self-diagnosis results of CONSULT-II.
Monitor item [Unit] Condition Display value
ETS SOLENOID [A] Engine runningAt idle speed Approx. 0.000A
When depressing accelerator pedal Approx. 0.000 - 0.500A*

TROUBLE DIAGNOSIS FOR SYMPTOMS
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Revision: 2007 April2007 M35/M45
TROUBLE DIAGNOSIS FOR SYMPTOMSPFP:00007
AWD Warning Lamp Does Not Turn ON When The Ignition Switch Is Turned to
ON
NDS000DU
DIAGNOSTIC PROCEDURE
1. CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to TF-22, "
SELF-DIAG RESULT MODE" .
Is the
“CAN COMM CIRCUIT [U1000]” displayed?
YES >> Perform trouble diagnosis for CAN communication line. Refer to TF-32, "CAN Communication
Line" .
NO >> GO TO 2.
2. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 3.
NG >> Check AWD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
3. CHECK OUTPUT SIGNAL WITH UNIFIED METER AND A/C AMP.
With CONSULT-II
1. Turn ignition switch “ON”. (Do not start engine.)
2. Select “DATA MONITOR” mode for “METER A/C AMP” with CONSULT-II.
3. Start the engine, and then make sure that “4WD W/L” display
turns from "ON" to "OFF" after several seconds.
OK or NG
OK >> GO TO 4.
NG >> Perform trouble diagnosis for combination meter. Refer
to DI-18, "
Trouble Diagnosis" .
4. SYMPTOM CHECK
Check again.
OK or NG
OK >>INSPECTION END
NG >> Replace unified meter control unit assembly. Refer to DI-27, "
Disassembly and Assembly of Com-
bination Meter" .
AWD Warning Lamp Does Not Turn OFF Several Seconds after Engine StartedNDS000DV
DIAGNOSTIC PROCEDURE
1. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to TF-22, "
SELF-DIAG RESULT MODE" .
Is any malfunction detected by self-diagnosis?
YES >> Check the malfunctioning system.
NO >> GO TO 2.
Monitor item Condition Display value
4WD W/LIgnition switch ON ON
Start engine (after several seconds) OFF
SDIA2065E

TF-36
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: 2007 April2007 M35/M45
3. CHECK SYSTEM FOR AWD SOLENOID
Perform trouble diagnosis for AWD solenoid system. Refer to TF-28, "
AWD Solenoid" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK ELECTRIC CONTROLLED COUPLING
1. Turn ignition switch “OFF”.
2. Set the selector lever to “N” (neutral) position and disengage the parking brake.
3. Lift up the vehicle.
4. Rotate the rear propeller shaft by hand.
5. Hold front propeller shaft lightly.
Does front propeller shaft rotate?
YES >> Replace electric controlled coupling for mechanical malfunction (clutch sticking etc.). Refer to TF-
45, "Disassembly and Assembly" .
NO >> GO TO 5.
5. SYMPTOM CHECK
Check again.
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
6. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >>INSPECTION END
NG >> Check AWD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
Vehicle Does Not Enter AWD Mode Even Though AWD Warning Lamp Turned to
OFF
NDS000DX
DIAGNOSTIC PROCEDURE
1. CHECK AWD WARNING LAMP
Turn ignition switch “ON”. (Do not start engine.)
Does AWD warning lamp turn on?
YES >> GO TO 2.
NO >> Go to TF-33, "
AWD Warning Lamp Does Not Turn ON When The Ignition Switch Is Turned to ON"
.
2. CHECK SYSTEM FOR CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to TF-22, "
SELF-DIAG RESULT MODE" .
Is the
“CAN COMM CIRCUIT [U1000]” displayed?
YES >> Perform trouble diagnosis for CAN communication line. Refer to TF-32, "CAN Communication
Line" .
NO >> GO TO 3.

TROUBLE DIAGNOSIS FOR SYMPTOMS
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Revision: 2007 April2007 M35/M45
3. CHECK AWD SOLENOID
Check AWD solenoid. Refer to TF-30, "
COMPONENT INSPECTION" .
OK or NG
OK >> GO TO 4.
NG >> Replace electric controlled coupling for malfunction of AWD solenoid. Refer to TF-45, "
Disassem-
bly and Assembly" .
4. CHECK AWD CONTROL UNIT
Check AWD control unit input/output signal. Refer to TF-20, "
AWD Control Unit Input/Output Signal Reference
Va l u e s" .
OK or NG
OK >> GO TO 5.
NG >> Check AWD control unit pin terminals for damage or loose connection with harness connector. If
any items are damaged, repair or replace damaged parts.
5. SYMPTOM CHECK
Check again.
OK or NG
OK >>INSPECTION END
NG >> Replace electric controlled coupling for mechanical malfunction (mechanical engagement of
clutch is not possible.). Refer to TF-45, "
Disassembly and Assembly" .
While Driving, AWD Warning Lamp Flashes Rapidly (When Flashing in Approx.
1 Minute and Then Turning OFF)
NDS000DY
NOTE:
Rapid flashing: 2 times/second
This symptom protects drivetrain parts when a heavy load is applied to the electric controlled coupling and
multiple disc clutch temperature increases. Also, optional distribution of torque sometimes becomes rigid
before lamp flashes rapidly. Both cases are not malfunction.
When this symptom occurs, stop vehicle and allow it to idle for some times. Flashing will stop and system will
be restored.
While Driving, AWD Warning Lamp Flashes Slowly (When Continuing to Flash
until Turning Ignition Switch OFF)
NDS000DZ
NOTE:
Slow flashing: 1 time/2 seconds
DIAGNOSTIC PROCEDURE
1. CHECK TIRE
Check the following.

Tire pressure

Wear condition

Longitudinal tire size (There is no difference between longitudinal tires.)
OK or NG
OK >> GO TO 2.
NG >> Drive at vehicle speed of 20 km/h (12 MPH) or more for 5 seconds or more after repairing or
replacing damaged parts. (Initialize improper size tire information.)

WT-1
ROAD WHEELS & TIRES
E SUSPENSION
CONTENTS
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SECTION WT
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ROAD WHEELS & TIRES
PRECAUTIONS .......................................................... 3
Precautions .............................................................. 3
PREPARATION ........................................................... 4
Special Service Tools ............................................... 4
Commercial Service Tools ........................................ 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 5
NVH Troubleshooting Chart ..................................... 5
ROAD WHEEL ............................................................ 6
Inspection ................................................................. 6
ALUMINUM WHEEL ............................................. 6
STEEL WHEEL ..................................................... 6
ROAD WHEEL AND TIRE ASSEMBLY ..................... 7
Balancing Wheels (Bonding Weight Type) ............... 7
REMOVAL ............................................................. 7
WHEEL BALANCE ADJUSTMENT ...................... 7
Rotation .................................................................... 8
TIRE PRESSURE MONITORING SYSTEM ............... 9
System Components ................................................ 9
System Description .................................................. 9
TRANSMITTER ..................................................... 9
RECEIVER .......................................................... 10
LOW TIRE PRESSURE WARNING CONTROL
UNIT .................................................................... 10
LOW TIRE PRESSURE WARNING LAMP ......... 10
DISPLAY UNIT ..................................................... 11
Can Communication ................................................ 11
TROUBLE DIAGNOSES .......................................... 12
How to Perform Trouble Diagnoses ....................... 12
BASIC CONCEPT ............................................... 12
Schematic .............................................................. 13
Wiring Diagram — T/WARN — .............................. 14
Low Tire Pressure Warning Control Unit Input/Out-
put Signal Standard ................................................ 17
ID Registration Procedure ...................................... 18
ID REGISTRATION WITH ACTIVATION TOOL ... 18
ID REGISTRATION WITHOUT ACTIVATION
TOOL .................................................................. 18
Transmitter Wake Up Operation ............................. 19
WITH TRANSMITTER ACTIVATION TOOL ........ 19CONSULT-II Function (AIR PRESSURE MONI-
TOR) ....................................................................... 19
DESCRIPTION .................................................... 19
CONSULT-II SETTING PROCEDURE ................ 19
WORK SUPPORT MODE ................................... 20
SELF-DIAG RESULT MODE ............................... 20
DATA MONITOR MODE ...................................... 21
ACTIVE TEST MODE ......................................... 22
LOW TIRE PRESSURE WARNING CONTROL
UNIT PART NUMBER ......................................... 22
Diagnosis Procedure with Warning Lamp Function
(Without CONSULT-II) ............................................ 22
DESCRIPTION .................................................... 22
FUNCTION .......................................................... 22
LOW TIRE PRESSURE WARNING LAMP DIAG-
NOSTIC CHART .................................................. 23
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ...................................................... 25
INTRODUCTION ................................................. 25
WORK FLOW ...................................................... 25
Preliminary Check .................................................. 26
Trouble Diagnosis Chart ......................................... 27
SELF-DIAGNOSIS .............................................. 27
DIAGNOSIS CHART BY SYMPTOM .................. 28
TROUBLE DIAGNOSIS FOR SYSTEM .................... 29
Transmitter no Data ................................................ 29
MALFUNCTION CODE NO. 21, 22, 23, 24 ......... 29
Receiver Data Error ................................................ 30
MALFUNCTION CODE NO. 25, 26, 27, 28 ......... 30
Transmitter Pressure Data Error ............................. 31
MALFUNCTION CODE NO. 35, 36, 37, 38 ......... 31
Transmitter Function Code Error ............................ 32
MALFUNCTION CODE NO. 41, 42, 43, 44 ......... 32
Transmitter Battery Voltage Low ............................. 32
MALFUNCTION CODE NO. 45, 46, 47, 48 ......... 32
Receiver ID No Registration ................................... 33
MALFUNCTION CODE NO. 51 ........................... 33
Vehicle Speed Signal .............................................. 33
MALFUNCTION CODE NO. 52 ........................... 33
Control Unit (EEPROM) Malfunction ...................... 34

WT-2Revision: 2007 April2007 M35/M45 MALFUNCTION CODE NO. 54 ........................... 34
CAN Communication System Malfunction .............. 34
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 35
Warning Lamp Does Not Come On When Ignition
Switch Is Turned ON ............................................... 35
Warning Lamp Stay On When Ignition Switch Is
Turned ON .............................................................. 35
Warning Lamp Blinks 1 Minute and Then Turns ON
When Ignition Switch Is Turned ON ........................ 36
Warning Lamp Blinks When Ignition Switch Is
Turned ON .............................................................. 37
Turn Signal Lamp Blinks When Ignition Switch Is
Turned ON .............................................................. 38
ID Registration Can Not Be Completed .................. 38REMOVAL AND INSTALLATION .............................. 39
Transmitter .............................................................. 39
REMOVAL ............................................................ 39
INSTALLATION .................................................... 39
Low Tire Pressure Warning Control Unit ................. 40
REMOVAL ............................................................ 40
INSTALLATION .................................................... 40
Receiver .................................................................. 40
REMOVAL ............................................................ 40
INSTALLATION .................................................... 40
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 41
Road Wheel ............................................................ 41
Tire .......................................................................... 41

TIRE PRESSURE MONITORING SYSTEM
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TIRE PRESSURE MONITORING SYSTEMPFP:40720
System ComponentsNES000JR
System DescriptionNES000JS
TRANSMITTER
A sensor-transmitter integrated with a valve is installed on a wheel,
and transmits a detected air pressure signal in the form of a radio
wave.
1. Tire pressure transmitter front LH 2. Tire pressure transmitter front RH 3. Tire pressure receiver front LH
4. Tire pressure receiver front RH 5. Low tire pressure warning control
unit6. Low tire pressure warning lamp
7. Display unit 8. Tire pressure transmitter rear LH 9. Tire pressure transmitter rear RH
10. Tire pressure receiver rear LH 11. Tire pressure receiver rear RH
SEIA0648E
SEIA0521E

WT-10
TIRE PRESSURE MONITORING SYSTEM
Revision: 2007 April2007 M35/M45
RECEIVER
The receiver receives the air pressure signal transmitted by the transmitter in each wheel.
LOW TIRE PRESSURE WARNING CONTROL UNIT
The low tire pressure warning control unit (1) reads the air pressure
signal received by the receiver, and controls the low tire pressure
warning lamp operations. It also has a judgementfunction to detect a
system malfunction.
LOW TIRE PRESSURE WARNING LAMP
The combination meter receives tire pressure status from the low tire
pressure warning control unit using CAN communication. When a
low tire pressure condition is sensed by the low tire pressure warn-
ing control unit, the combination meter low tire pressure warning
lamp is activated.
Low Tire Pressure Warning Lamp Indication
*: Standard air pressure is for 230 kpa (2.3 kg/cm2 , 33 psi) vehicle. 1. Tire pressure receiver front 2. Tire pressure receiver rear A. Front wheel house
A. Front wheel house
B. Rear wheel house
Refer to GI-11, "
Components" , for the symbols in the figure.
SEIA0649E
SEIA0650E
SEIA0434E
Condition Low tire pressure warning lamp
Less than 182 kPa (1.82 kg/cm
2 , 26.5 psi) [Flat tire]*ON
Low tire pressure warning system malfunction [Other diagnostic item] Warning lamp blinks 1 min, then turns ON

TROUBLE DIAGNOSES
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Low Tire Pressure Warning Control Unit Input/Output Signal StandardNES000JX
CAUTION:
When checked using a circuit tester for voltage measurement, connector terminals should not be
forcefully extended.
Terminal
Measuring point Measuring condition Standard
+
(wire color)–
2 (B/R)
GroundIgnition switch Ignition switch ON Battery voltage (12 V)
5 (W/R)Tire pressure warning check
connectorAlways Approx. 5 V
7 (LG)
Battery power supply
Ignition switch ONBattery voltage (12 V) 8 (R/W)
9 (GR)
10 (SB)
11 (W/G)
Signal Input Approx. 4.5 V 12 (R)
13 (L)
14 (L/G)
15 (L) CAN-H — —
16 (P) CAN-L — —
17 (B) Ground — 0 V
19 (G/R) HazardHazard lamp switch OFF Battery voltage (Approx. 12 V)
Hazard lamp switch ON 0 V
23 (BR)
Ground—0 V
24 (W/L) — 0 V
25 (B/R) — 0 V
26 (V) — 0 V
27 (O)
Analog signal Ignition switch ON Approx. 0.7 V 28 (G)
29 (P)
30 (L/R)