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SUSPENSION

SECTION
ROAD WHEELS & TIRES
WT B

WT
CONTENTS
BASIC INSPECTION ................................... 3
. Special Repair Requirement ...................................17
. F

DIAGNOSIS AND REPAIR WORKFLOW ......... 3
. C1729 VEHICLE SPEED SIGNAL .................... 18
Repair Work Flow ..................................................... 3
. Description ..............................................................18
.
G
DTC Logic ...............................................................18
.
INSPECTION AND ADJUSTMENT .................... 5
. Vehicle Speed Signal .............................................18 .
Preliminary Check .................................................... 5
.
Transmitter Wake Up Operation .............................. 5 . ECU DIAGNOSIS ........................................ 19
. H
ID Registration Procedure ........................................ 6
.
BCM (BODY CONTROL MODULE) ................. 19
FUNCTION DIAGNOSIS .............................. 8
. Terminals and Reference Values (BCM) ................19 .
I
Wiring Diagram .......................................................19
.
TPMS .................................................................. 8
. Self-Diagnosis ........................................................21
.
System Diagram ....................................................... 8
. Flash Code Chart ...................................................22
.
System Description .................................................. 8
. J
System Component ................................................ 10
. SYMPTOM DIAGNOSIS ............................. 24
.
DIAGNOSIS SYSTEM (BCM) ...........................11
. TPMS ................................................................. 24
K
CONSULT-III Function (BCM) ................................ 11 . Symptom Table ......................................................24
.
Self-Diagnosis ........................................................ 11
.
LOW TIRE PRESSURE WARNING LAMP
COMPONENT DIAGNOSIS ........................ 13
. DOES NOT TURN ON ....................................... 25 L
Low Tire Pressure Warning Lamp Does Not Come
C1708 - C1711 DATA FROM TRANSMITTER On When Ignition Switch Is Turned On ..................25
.
NOT BEING RECEIVED ....................................13
. M
Description ............................................................. 13
. LOW TIRE PRESSURE WARNING LAMP
DTC Logic .............................................................. 13
. STAYS ON ........................................................ 26
Data from Transmitter Not Being Received ........... 13 . Low Tire Pressure Warning Lamp Stays On When
Special Repair Requirement .................................. 14 . Ignition Switch Is Turned On ..................................26
. N

C1712 - C1715, C1720 - C1723, C1724 - LOW TIRE PRESSURE WARNING LAMP
C1727 TRANSMITTER MALFUNCTION ..........15
. BLINKS ............................................................. 27 O
Description ............................................................. 15
. Low Tire Pressure Warning Lamp Flashes When
DTC Logic .............................................................. 15
. Ignition Switch Is Turned On ..................................27
.
Transmitter Malfunction .......................................... 15.
HAZARD WARNING LAMPS FLASH .............. 28 P
Special Repair Requirement .................................. 16 .
Hazard Warning Lamps Flash When Ignition
C1716 - C1719 TRANSMITTER PRESSURE Switch Is Turned On ...............................................28
.
MALFUNCTION .................................................17
.
Description ............................................................. 17
.
"TIRE PRESSURE" INFORMATION IN DIS-
DTC Logic .............................................................. 17
. PLAY UNIT DOES NOT EXIST ......................... 29
Transmitter Pressure Malfunction .......................... 17 .

WT-1
"TIRE PRESSURE" Information in Display Unit ON-VEHICLE MAINTENANCE .................. 34
Does Not Exist ....................................................... 29
.
WHEEL ............................................................. 34
.
ID REGISTRATION CANNOT BE COMPLET- Inspection ............................................................... 34
.
ED ..................................................................... 30
.
ID Registration Cannot Be Completed .................. 30
. ON-VEHICLE REPAIR ............................... 35
PRECAUTION ............................................ 31
. WHEEL AND TIRE ASSEMBLY ...................... 35
.
Balancing Wheels .................................................. 35 .
PRECAUTIONS ................................................ 31
. Rotation .................................................................. 36
.
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- REMOVAL AND INSTALLATION .............. 38
SIONER" ................................................................ 31
.
Precaution for work ................................................ 31
. REMOVAL AND INSTALLATION .................... 38
.
Transmitter (Pressure Sensor) ............................... 38
.
PREPARATION .......................................... 32
.
SERVICE DATA AND SPECIFICATIONS
PREPARATION ................................................ 32
. (SDS) .......................................................... 40
Special Service Tool .............................................. 32
.
SERVICE DATA AND SPECIFICATIONS
SYMPTOM DIAGNOSIS ............................ 33
. (SDS) ................................................................ 40
.
Road Wheel ........................................................... 40 .
NOISE, VIBRATION, AND HARSHNESS Tire ......................................................................... 40
.
(NVH) TROUBLESHOOTING ........................... 33
.
NVH Troubleshooting Chart .................................. 33
.

WT-2
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >
BASIC INSPECTION A
DIAGNOSIS AND REPAIR WORKFLOW
Repair Work Flow INFOID:0000000001277800
B

WORK FLOW
C

M
ALEIA0003GB

WT-5, "Preliminary Check" WT-11, "Self-Diagnosis" WT-24, "Symptom Table" N
DETAILED FLOW

1.CUSTOMER INFORMATION O

Interview the customer to obtain detailed information about the symptom.
P
>> GO TO 2
2.PRELIMINARY CHECK
Perform preliminary check. Refer to WT-5, "Preliminary Check"

>> GO TO 3

WT-3
DIAGNOSIS AND REPAIR WORKFLOW
< BASIC INSPECTION >
3.SELF-DIAGNOSIS
Perform SELF-DIAGNOSIS. Refer to WT-11, "Self-Diagnosis" (with CONSULT-III) or WT-22, "Flash Code
Chart" (without CONSULT-III).

>> GO TO 4
4.SYMPTOM
Check for symptoms. Refer to WT-24, "Symptom Table".

>> GO TO 5
5.MALFUNCTIONING PARTS
Repair or replace the applicable parts.

>> GO TO 6
6.DRIVE TEST
1. Perform a drive test.
2. Check the low tire pressure warning lamp.

>> GO TO 7
7.SELF-DIAGNOSIS
Perform SELF-DIAGNOSIS.
Are any DTC's displayed?
YES >> GO TO 5
NO >> INSPECTION END

WT-4
INSPECTION AND ADJUSTMENT
< BASIC INSPECTION >
INSPECTION AND ADJUSTMENT
A
Preliminary Check INFOID:0000000001277801

1.TIRE PRESSURE B
Check all tire pressures. Refer to WT-40, "Tire".
Do tire pressures match specification?
C
YES >> GO TO 2.
NO >> Adjust tire pressures to specified value.
2.LOW TIRE PRESSURE WARNING LAMP D
Check low tire pressure warning lamp activation.
Does the low tire pressure warning lamp activate for one second when ignition switch is turned ON?
YES >> GO TO 3. WT
NO >> GO TO WT-25, "Low Tire Pressure Warning Lamp Does Not Come On When Ignition Switch Is
Turned On".
3.BCM CONNECTOR F
1. Disconnect BCM harness connectors.
2. Check terminals for damage or loose connections.
3. Reconnect harness connectors. G
Are BCM connectors damaged or loose?
YES >> Repair or replace damaged parts.
NO >> GO TO 4. H
4.TRANSMITTER ACTIVATION TOOL
Check battery in transmitter activation tool. I
Is transmitter activation tool battery fully charged?
YES >> Perform self-diagnosis. Refer to WT-21, "Self-Diagnosis".
NO >> Replace battery in transmitter activation tool. J
Transmitter Wake Up Operation INFOID:0000000001277802

NOTE: K
This procedure must be done after replacement of a low tire pressure warning transmitter or BCM.
New replacement transmitters are provided asleep and must first be woken up using Transmitter Acti-
vation Tool J-45295 before ID registration can be performed. L
1. Turn ignition switch ON. Push the transmitter activation tool
against the tire near the front left transmitter. Press the button for
5 seconds. The hazard warning lamps flash per the following
diagram. M

Tool number : (J-45295)
N

O
LEIA0036E

2. Repeat this procedure for each tire in the following order: FL, FR, RR, RL.
P

WT-5
INSPECTION AND ADJUSTMENT
< BASIC INSPECTION >
3. When the BCM finishes assigning each tire ID, the BCM flashes the hazard warning lamps and sends
flashing indicator status by CAN according to the following time chart.

WEIA0177E

4. After completing wake up of all transmitters, make sure low tire pressure warning lamp goes out.
ID Registration Procedure INFOID:0000000001277803

ID REGISTRATION WITH TRANSMITTER ACTIVATION TOOL
NOTE:
This procedure must be done after replacement of a low tire pressure warning transmitter or BCM.
New replacement transmitters are provided asleep and must first be woken up using Transmitter Acti-
vation Tool J-45295 before ID registration can be performed.
1. Connect CONSULT-III.
2. Select ID REGIST under BCM.
3. Push the transmitter activation tool against the tire near the front
left transmitter. Press the button for 5 seconds.

Tool number : (J-45295)

LEIA0036E

4. Register the IDs in order from FR LH, FR RH, RR RH and RR LH. When ID registration of each wheel has
been completed, the hazard warning lamps flash.

Step Activation tire position Hazard warning lamp CONSULT-III
1 Front LH
2 Front RH YET
2 times flashing
3 Rear RH DONE
4 Rear LH
5. After completing all ID registrations, press END to complete the procedure.
NOTE:
Be sure to register all of the IDs in order from FR LH, FR RH, RR RH, to RR LH, or the self-diagnostic results
display will not function properly.
ID REGISTRATION WITHOUT TRANSMITTER ACTIVATION TOOL
NOTE:
WT-6
INSPECTION AND ADJUSTMENT
< BASIC INSPECTION >
This procedure must be done after replacement of a low tire pressure warning transmitter or BCM.
New replacement transmitters are provided asleep and must first be woken up using Transmitter Acti- A
vation Tool J-45295 before ID registration can be performed.
1. Connect CONSULT-III.
2. Select ID REGIST under BCM. B
3. Adjust the tire pressures to the values shown in the table and drive the vehicle at 40 km/h (25 MPH) or
more for a few minutes.
C
Tire position Tire pressure kPa (kg/cm2, psi)
Front LH 250 (2.5, 36)
Front RH 230 (2.3, 33)
D

Rear RH 210 (2.1, 30)
Rear LH 190 (1.9, 27) WT
4. After completing all ID registrations, press END to complete the procedure.

Activation tire position CONSULT-III F
Front LH
Front RH YET
G
Rear RH DONE
Rear LH
5. Inflate all tires to proper pressure. Refer to WT-40, "Tire". H

WT-7
TPMS
< FUNCTION DIAGNOSIS >
FUNCTION DIAGNOSIS
TPMS
System Diagram INFOID:0000000001277804

ALEIA0004GB

System Description INFOID:0000000001277829

BODY CONTROL MODULE (BCM)
The BCM (1) is shown with the lower instrument panel LH removed.
The BCM reads the air pressure signal received by the remote key-
less entry receiver, and controls the low tire pressure warning lamp
as shown below. It also has a self-diagnosis function to detect a sys-
tem malfunction.

Condition Low tire pressure warning lamp
System normal On for 1 second after ignition ON

Tire less than 193 kPa (2.0 kg/cm2 , 28 psi) ON
[Flat tire] AWEIA0010ZZ

Low tire pressure warning system malfunc- After key ON, flashes once per sec-
tion ond for 1 minute, then stays ON

TRANSMITTER
A sensor-transmitter integrated with a valve is installed in each
wheel, and transmits a detected air pressure signal in the form of a
radio wave. The radio signal is received by the remote keyless entry
receiver.

WEIA0137E

REMOTE KEYLESS ENTRY RECEIVER

WT-8
TPMS
< FUNCTION DIAGNOSIS >
The remote keyless entry receiver is shown with the instrument
panel RH removed. The remote keyless entry receiver receives the A
air pressure signal transmitted by the transmitter in each wheel.

LEIA0069E

D
COMBINATION METER
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- WT
ing lamp is activated.

LEIA0055E

TIRE PRESSURE WARNING CHECK CONNECTOR H
The tire pressure warning check connector can be grounded in order to initiate self-diagnosis without a CON-
SULT-III. The tire pressure warning check connector is located behind the lower portion of the instrument
panel LH. Refer to XX-XX, *****.
I
DISPLAY UNIT (with BOSETM audio system)
Displays the air pressure of each tire.
NOTE: J
After the ignition switch is turned on, the pressure values will not be
displayed until the data of each wheel is received.
K

AWEIA0002GB

WT-9
TPMS
< FUNCTION DIAGNOSIS >
System Component INFOID:0000000001277830

AWEIA0011ZZ

1. AV control unit 2. Tire pressure warning check connec- 3. Transmitter
(With BOSE audio system) tor
M123
4. BCM 5. Transmitter 6. Combination meter
M18, M20 M24
7. Display unit 8. Remote keyless entry receiver
(With BOSE audio system) M120

WT-10
DIAGNOSIS SYSTEM (BCM)
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
A
CONSULT-III Function (BCM) INFOID:0000000001277807

CONSULT-III can display each diagnostic item using the diagnostic test modes shown following. B

BCM
Diagnostic mode Description
diagnostic test item
C
Supports inspections and adjustments. Commands are transmit-
ted to the BCM for setting the status suitable for required opera-
WORK SUPPORT
tion, input/output signals are received from the BCM and received
data is displayed. D
DATA MONITOR Displays BCM input/output data in real time.
Operation of electrical loads can be checked by sending drive sig-
Inspection by part
ACTIVE TEST
nal to them.
WT
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
The result of transmit/receive diagnosis of CAN communication
CAN DIAG SUPPORT MNTR F
can be read.
ECU PART NUMBER BCM part number can be read.
CONFIGURATION Performs BCM configuration read/write functions. G
Self-Diagnosis INFOID:0000000001277808

DESCRIPTION H
During driving, the tire pressure monitoring system receives the signal transmitted from the transmitter
installed in each wheel, and turns on the low tire pressure warning lamp when the tire pressure becomes low.
The control unit (BCM) for this system has pressure judgement and self-diagnosis functions. I
FUNCTION
When the tire pressure monitoring system detects low inflation pressure or an internal malfunction, the low tire
pressure warning lamp in the combination meter comes on. The malfunction is indicated by the low tire pres- J
sure warning lamp flashing.
CONSULT-III Application to Tire Pressure Monitoring System
K
ITEM SELF-DIAGNOSTIC RESULTS DATA MONITOR
Front - Left transmitter

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