WT-1
ROAD WHEELS & TIRES
E SUSPENSION
CONTENTS
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WT
Revision: 2006 November2007 350Z
ROAD WHEELS & TIRES
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Battery Service ................................ 3
Service Notice or 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 TIRE ASSEMBLY .............................. 7
Balancing Wheels (Bonding Weight Type) ............... 7
REMOVAL ............................................................. 7
WHEEL BALANCE ADJUSTMENT ...................... 7
Tire Rotation ............................................................. 8
DESCRIPTION ...................................................... 8
TIRE PRESSURE MONITORING SYSTEM ............. 10
System Components .............................................. 10
System Description ................................................ 10
TRANSMITTER ................................................... 10
REMOTE KEYLESS ENTRY RECEIVER ........... 10
BCM (BODY CONTROL MODULE) ..................... 11
LOW TIRE PRESSURE WARNING LAMP .......... 11
Can Communication ............................................... 12
SYSTEM DESCRIPTION .................................... 12
TROUBLE DIAGNOSIS ............................................ 13
How to Perform Trouble Diagnosis ........................ 13
BASIC CONCEPT ............................................... 13
INTRODUCTION ................................................. 13
WORK FLOW ...................................................... 14
Schematic .............................................................. 15
Wiring Diagram — T/WARN — .............................. 16
Trouble Diagnosis Chart for Symptoms ................. 19
Control Unit Input/Output Signal Standard ............. 20ID Registration Procedure ...................................... 21
ID REGISTRATION WITH ACTIVATION TOOL ... 21
ID REGISTRATION WITHOUT ACTIVATION
TOOL ................................................................... 21
Transmitter Wake Up Operation ............................. 22
WITH ACTIVATION TOOL .................................. 22
CONSULT-III Function (BCM) ................................ 22
CONSULT-III MAIN FUNCTION .......................... 22
WORK SUPPORT MODE ................................... 22
SELF-DIAG RESULTS MODE ............................ 23
DATA MONITOR MODE ...................................... 24
ACTIVE TEST MODE ......................................... 25
Diagnosis Procedure with Warning Lamp Function
(Without CONSULT-III) ........................................... 26
DESCRIPTION .................................................... 26
FUNCTION .......................................................... 26
MALFUNCTION CODE CHART .......................... 26
LOW TIRE PRESSURE WARNING LAMP
SYMPTOM CHART ............................................. 27
Preliminary Check .................................................. 29
BASIC INSPECTION ........................................... 29
TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC
ITEMS ........................................................................ 30
Transmitter or Control Unit (BCM) .......................... 30
MALFUNCTION CODE NO. 21, 22, 23 OR 24 ... 30
Transmitter - 1 ........................................................ 30
MALFUNCTION CODE NO. 31, 32, 33, 34, 41,
42, 43, 44, 45, 46, 47 OR 48 ............................... 30
Transmitter - 2 ........................................................ 31
MALFUNCTION CODE NO. 35, 36, 37 OR 38 ... 31
Vehicle Speed Signal .............................................. 32
MALFUNCTION CODE NO. 52 ........................... 32
TROUBLE DIAGNOSIS FOR SYMPTOMS .............. 33
Warning Lamp Does Not Come On When Ignition
Switch Is Turned On ............................................... 33
DIAGNOSTIC PROCEDURE .............................. 33
Warning Lamp Stays On When Ignition Switch Is
Turned On .............................................................. 33
DIAGNOSTIC PROCEDURE .............................. 33
Warning Lamp Blinks When Ignition Switch Is
WT-2Revision: 2006 November2007 350Z Turned On ............................................................... 35
DIAGNOSTIC PROCEDURE .............................. 35
Turn Signal Lamp Blinks When Ignition Switch Is
Turned On ............................................................... 36
DIAGNOSTIC PROCEDURE .............................. 36
ID Registration Can Not Be Completed .................. 36
DIAGNOSTIC PROCEDURE .............................. 36REMOVAL AND INSTALLATION .............................. 37
Transmitter .............................................................. 37
REMOVAL ............................................................ 37
INSTALLATION .................................................... 37
REMOTE KEYLESS ENTRY RECEIVER ............ 38
BCM (BODY CONTROL MODULE) .................... 38
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 39
Road Wheel ............................................................ 39
Tire .......................................................................... 39
Tightening Torque ................................................... 39
TIRE PRESSURE MONITORING SYSTEM
WT-11
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BCM (BODY CONTROL MODULE)
The BCM reads the air pressure signal received by the remote key-
less entry receiver, and controls the low tire pressure warning lamp
operations. It also has a judgement function to detect a system mal-
function.
LOW TIRE PRESSURE WARNING LAMP
The combination meter receives tire pressure status from the BCM
using CAN communication. When a low tire pressure condition is
sensed by the BCM, the combination meter low tire pressure warn-
ing lamp are activated.
Low tire pressure warning lamp indication
NOTE:
Standard air pressure is for 240 kpa (2.4 kg/cm2 , 35 psi) vehicles.
SEIA0591E
SEIA0434E
Condition Low tire pressure warning lamp
Less than 190 kPa (1.90 kg/cm
2 , 28 psi) [Note]ON
Low tire pressure warning system malfunction [Other diagnostic item] Warning lamp flashes 1 min, then turns ON.
TROUBLE DIAGNOSIS
WT-19
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Trouble Diagnosis Chart for Symptoms NES000A1
If low tire pressure warning lamp turns ON, perform self-diagnosis. Refer to WT-23, "SELF-DIAG RESULTS MODE" .
Symptom Check item Reference page
Warning lamp does not come on when ignition switch is
turned on.CAN communication line
WT-33
Combination meter
BCM
Warning lamp stays on when ignition switch is turned
on.ID registration
WT-33
BCM connector or circuit
BCM
Warning lamp blinks when ignition switch is turned on.BCM connector or circuit
WT-35
BCM
Turn signal lamp blinks when ignition switch is turned
on.BCM connector or circuit
WT-36
BCM
ID registration can not be operated.Transmitter
WT-36
Remote keyless entry receiver connector or circuit
Remote keyless entry receiver
BCM connector or circuit
BCM
WT-20
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
Control Unit Input/Output Signal StandardNES0001F
Standards using a circuit tester and oscilloscope
Te r m i n a l
(Wire color)Item ConditionVoltage (V)
Approx. value
15 (W)Tire pressure warning check con-
nectorAlways 5V
18 (B)Remote keyless entry receiver
(Ground)—0V
19 (Y)Remote keyless entry receiver
(Power supply)Stand-by
Press any of the keyfob switches
20 (L)Remote keyless entry receiver
(Signal)Stand-by
Press any of the keyfob switches
38 (W/L) Ignition switch Ignition switch ON or START Battery voltage (12V)
39 (L) Data line (CAN H) — —
40 (P) Data line (CAN L) — —
42 (GY) Battery power supply (Fuse) Always Battery voltage (12V)
45 (G/W) Turn signal (left)
Ignition switch ON
Combination switch is turn left ON
OCC3879D
OCC3882D
OCC3881D
OCC3880D
SKIA3009J
TROUBLE DIAGNOSIS
WT-21
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ID Registration ProcedureNES0001G
ID REGISTRATION WITH ACTIVATION TOOL
This procedure must be done after replacing or rotating wheels, replacing transmitter or BCM.
1. Select “AIR PRESSURE MONITOR” on “SELECT WORK ITEM”.
2. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen, and select “ID REGIST”.
3. With the activation tool (J-45295) pushed against the front-left
transmitter position of the tire air valve, press the button then
keep 5 seconds.
4. Register the IDs in order from FR LH, FR RH, RR RH to RR LH.
When ID registration of each wheel has been completed, a
buzzer sounds and turn signal lamp (LH/ RH) blinks.
5. After completing all ID registrations, press “END” to complete the procedure.
NOTE:
Be sure to register the IDs in order from FR LH, FR RH, RR RH, to RR LH, or the self-diagnostic results dis-
play will not function properly.
ID REGISTRATION WITHOUT ACTIVATION TOOL
This procedure must be done after replacing or rotating wheels, replacing transmitter or BCM.
1. Select “AIR PRESSURE MONITOR” on “SELECT WORK ITEM”.
2. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen, and select “ID REGIST”.
3. Adjust the tire pressure to the values shown in the table below for ID registration, and drive the vehicle at
40 km/h (25 MPH) or more for a few minutes.
4. After completing all ID registrations, press “END” to complete the procedure.
46 (PU/W) Turn signal (right)
Ignition switch ON
Combination switch is turn right
ON
52 (B) GND — 0V
55 (R) Battery power supply (F/L) Always Battery voltage (12V)Terminal
(Wire color)Item ConditionVoltage (V)
Approx. value
SKIA3009J
Activation tire position Buzzer Turn signal lamp CONSULT-III
1 Front LH Once
2 times flashing“Red”
↓
“Green” 2 Front RH 2 times
3 Rear RH 3 times
4 Rear LH 4 times
SEIA0460E
Tire position
Tire pressure kPa (kg/cm2 , psi)
Front − Left 240 (2.4, 34)
Front − Right 220 (2.2, 31)
Rear − Right 200 (2.0, 29)
Rear − Left 180 (1.8, 26)
Activation tire position CONSULT-III
Front LH
“Red”
↓
“Green” Front RH
Rear RH
Rear LH
WT-22
TROUBLE DIAGNOSIS
Revision: 2006 November2007 350Z
5. Inflate all tires to proper pressure. Refer to WT-39, "SERVICE DATA AND SPECIFICATIONS (SDS)" .
Transmitter Wake Up OperationNES0001H
WITH ACTIVATION TOOL
1. With the activation tool (J-45295) pushed against the front-left
transmitter, press the button for 5 seconds.
When ignition switch ON, as the low tire pressure warning
lamp blinks per the follow diagram, the respective transmitter
then must be woken up.
2. Register the ID of wheel that warning lamp flashes. When wake up of registered wheel has been com-
pleted, turn signal lamp flashes two times.
3. After completing wake up of all transmitters, make sure low tire pressure warning lamp goes out.
CONSULT-III Function (BCM)NES000DL
CONSULT-III MAIN FUNCTION
CONSULT-III can display each diagnostic item using the diagnostic test modes shown following.
WORK SUPPORT MODE
ID Read
The registered ID number is displayed.
ID Regist
Refer to WT-21, "ID Registration Procedure" .
SEIA0460E
SEIA0378E
BCM diagnosis part Mode Function
Air pressure monitorWork supportThis mode enables a technician to adjust some devices faster and more accurately
by following the indications on CONSULT-III.
Self-diagnostic results Self-diagnostic results can be read and erased quickly.
Data monitor Input/Output data in the control unit can be read.
Active testDiagnostic Test Mode in with CONSULT-III drives some actuators apart from the
control unit (BCM) and also shifts some parameters in a specified range.
TROUBLE DIAGNOSIS
WT-25
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ACTIVE TEST MODE
NOTE:
Before performing the self-diagnosis, be sure to register the ID, or else the actual malfunction location may be
different from that displayed on CONSULT-III.
TEST ITEM LIST
Test item Content
FLASHER This test is able to check to make sure that each turn signal lamp turns on.
HORN This test is able to check to make sure that the horn sounds.
WARNING LAMP This test is able to check to make sure that the warning lamp turns on.
ID REGIST WARNING This test is able to check to make sure that the buzzer sounds or the warning lamp turns on.
FLAT TIRE WARNING This test is able to check to make sure that the buzzer sounds or the warning lamp turns on.