Mazda CX 7. Manual — part 153

02-02–1

02

SUSPENSION

SECTION

02-02

Toc of SCT

ON-BOARD DIAGNOSTIC . . . . 02-02
SYMPTOM

TROUBLESHOOTING . . . . . . 02-03

GENERAL PROCEDURES . . . . 02-10
WHEEL ALIGNMENT . . . . . . . . 02-11

WHEEL AND TIRES. . . . . . . . . 02-12
FRONT SUSPENSION . . . . . . . 02-13
REAR SUSPENSION . . . . . . . . 02-14
TECHNICAL DATA . . . . . . . . . . 02-50
SERVICE TOOLS . . . . . . . . . . . 02-60

Toc of SCT

02-02

ON-BOARD DIAGNOSTIC

TIRE PRESSURE MONITORING

SYSTEM (TPMS) WIRING DIAGRAM . . 02-02–2

With Advanced Keyless System . . . . . . 02-02–2
With Keyless Entry System . . . . . . . . . . 02-02–2

TIRE PRESSURE MONITORING

SYSTEM (TPMS) ON-BOARD
DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . 02-02–3

On-Board Diagnostic (OBD)

Test Description . . . . . . . . . . . . . . . . . 02-02–3

Reading DTCs Procedure . . . . . . . . . . . 02-02–3
Clearing DTCs Procedures . . . . . . . . . . 02-02–3
PID/Data Monitor and Record

Procedure . . . . . . . . . . . . . . . . . . . . . . 02-02–4

Active Command Modes Procedure . . . 02-02–4

Freeze Frame PID Data Access

Procedure. . . . . . . . . . . . . . . . . . . . . . 02-02–4

DTC Table . . . . . . . . . . . . . . . . . . . . . . 02-02–5
PID/DATA Monitor Table . . . . . . . . . . . . 02-02–5
Active Command Modes Table. . . . . . . 02-02–6

MALFUNCTIONING WHEEL UNIT

IDENTIFICATION . . . . . . . . . . . . . . . . . 02-02–7

DTC B2143 . . . . . . . . . . . . . . . . . . . . . . . 02-02–8
DTC B2868, B2869, B2870, B2871. . . . . 02-02–8
DTC U0127 . . . . . . . . . . . . . . . . . . . . . . . 02-02–9

With Advanced Keyless System. . . . . . 02-02–9
With Keyless Entry System . . . . . . . . . 02-02–10

DTC U2616, U2617, U2618, U2619. . . . . 02-02–11

End of Toc

WM: TIRE PRESSURE MONITORING SYSTEM

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ON-BOARD DIAGNOSTIC

02-02–2

TIRE PRESSURE MONITORING SYSTEM (TPMS) WIRING DIAGRAM

id020200800100

With Advanced Keyless System

With Keyless Entry System

End Of Sie

NO.1

ANTENNA

NO.2

NO.3

NO.4

RF SIGNAL

CAN
DRIVER

CAN_H

CAN_L

PCM

WHEEL UNIT

E

C

A

KEYLESS
RECEIVE

KEYLESS CM

INSTRUMENT
CLUSTER

3Q

2N

2R

2T

2A

2B

DLC-2

3A

3C

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NO.1

ANTENNA

NO.2

NO.3

NO.4

RF SIGNAL

CAN
DRIVER

CAN_H

CAN_L

PCM

WHEEL UNIT

E

D

B

A

INSTRUMENT
CLUSTER

2N

2R

2T

2A

DLC-2

KEYLESS
RECEIVER

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ON-BOARD DIAGNOSTIC

02-02–3

02-02

TIRE PRESSURE MONITORING SYSTEM (TPMS) ON-BOARD DIAGNOSIS

id020200800200

On-Board Diagnostic (OBD) Test Description

• The OBD test inspects the integrity and function of the TPMS and outputs the results when requested by the

specific tests.

• On-board diagnostic test also:

— Provides a quick inspection of the TPMS usually performed at the start of each diagnostic procedure.

— Provides verification after repairs to ensure that no other faults occurred during service.

• The OBD test is divided into 3 tests:

— Read/clear diagnostic results, PID monitor and active command mode.

Read/clear diagnostic results

• This function allows you to read or clear DTCs in the instrument cluster memory.

PID/Data monitor and record

• This function allows you to access certain data values, input signals, calculated values, and system status

information.

Active command modes

• This function allows you to control devices through the M-MDS.

Reading DTCs Procedure

1. Connect the M-MDS to the DLC-2 connector.
2. After the vehicle is identified, select the following

items from the initialization screen of the M-MDS.

• When using the IDS (notebook PC)

1. Select the “Toolbox” tab.
2. Select “Self Test”.
3. Select “Module”.
4. Select “IC”.

• When using the PDS (pocket PC)

1. Select “Module Tests”.
2. Select “IC”.
3. Select “Self Test”.

3. Verify the DTC according to the directions on the

screen.

• If any DTCs are displayed, perform troubleshooting according to the corresponding DTC inspection.

4. After completion of repairs, clear all DCTs stored in the TPMS. (See 02-02-3 Clearing DTCs Procedures.)

Clearing DTCs Procedures

1. Connect the M-MDS to the DLC-2 connector.
2. After the vehicle is identified, select the following

items from the initialization screen of the M-MDS.

• When using the IDS (notebook PC)

1. Select the “Toolbox” tab.
2. Select “Self Test”.
3. Select “Module”.
4. Select “IC”.

• When using the PDS (pocket PC)

1. Select “Module Tests”.
2. Select “IC”.
3. Select “Self Test”.

3. Verify the DTC according to the directions on the

screen.

4. Press the clear button on the DTC screen to clear the DTC.
5. Verify that no DTCs are displayed.

DLC-2

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DLC-2

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ON-BOARD DIAGNOSTIC

02-02–4

PID/Data Monitor and Record Procedure

1. Connect the M-MDS to the DLC-2 connector.
2. After the vehicle is identified, select the following

items from the initialization screen of the M-MDS.

• When using the IDS (notebook PC)

1. Select the “Toolbox” tab.
2. Select “DataLogger”.
3. Select “Module”.
4. Select “IC”.

• When using the PDS (pocket PC)

1. Select “Module Tests”.
2. Select “IC”.
3. Select “DataLogger”.

3. Select the applicable PID from the PID table.
4. Verify the PID data according to the directions on

the screen.

Note

• The PID/Data monitor function is used for monitoring the calculated value. Therefore, if the monitored

value of the output parts is not within the specification, inspection of the monitored value of input parts
corresponding to applicable output part control is necessary. In addition, because the system does not
display output part malfunction as abnormality in the monitored value, it is necessary to inspect the output
part individually using a active command modes function.

Active Command Modes Procedure

1. Connect the M-MDS to the DLC-2 connector.
2. After the vehicle is identified, select the following

items from the initialization screen of the M-MDS.

• When using the IDS (notebook PC)

1. Select the “Toolbox” tab.
2. Select “DataLogger”.
3. Select “Module”.
4. Select “IC”.

• When using the PDS (pocket PC)

1. Select “Module Tests”.
2. Select “IC”.
3. Select “DataLogger”.

3. Select the active command modes from the PID

table.

4. Perform the active command modes, inspect the operations for each parts.

• If there is no operation sound from the relay, motor, and solenoid after the active command mode

inspection is performed, it is possible that there is an open or short circuit in the wiring harness, relay, motor
or solenoid, or sticking and operation malfunction.

Freeze Frame PID Data Access Procedure

1. After the vehicle is identified, select the following items from the initialization screen of the M-MDS.

• This function is available for only the IDS (notebook PC)

1. Select the “Body” tab.
2. Select “TPMS Functions”.
3. Select “Freeze Frame Data”.

DLC-2

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DLC-2

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