Mazda CX 7. Manual - part 130

 

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Mazda CX 7. Manual - part 130

 

 

EMISSION SYSTEM [L3 WITH TC]

01-16–7

01-16

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Revised 10/2006 (Ref. No. R144/06) 

EVAPORATIVE EMISSION (EVAP) SYSTEM LEAK DETECTION PUMP REMOVAL/INSTALLATION[L3 WITH 
TC]

id011639800700

2WD

1. Disconnect the negative battery cable.
2. Remove in the order indicated in the table.

.

3. Install in the reverse order of removal.

AWD

1. Disconnect the negative battery cable.

Note

• Because the AWD EVAP system leak detection pump is installed surrounded by the rear differential, there 

is insufficient space for removing the pump from the vehicle. Therefore, it is necessary to remove the 
EVAP system leak detection pump and bracket separately from the vehicle.

2. Remove in the order indicated in the table.

.

3. Install in the reverse order of removal.

1

Connector

2

Evaporative hose

3

EVAP system leak detection pump

3

2

1

N·m {kgf·cm, in·lbf}

9.0—13.0 
{92—132, 80—115}

9.0—13.0 
{92—132, 80—115}

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1

Connector

2

Evaporative hose

3

EVAP system leak detection pump and bracket 
(See 01-16-8 EVAP system leak detection pump 
and bracket removal note)

4

EVAP system leak detection pump
(See 01-16-8 EVAP system leak detection pump 
and bracket removal note)

3

4

1

2

N·m {kgf·cm, in·lbf}

9.0—13.0 
{92—132, 
80—115}

9.0—13.0 
{92—132, 
80—115}

acxuuw00002564

EMISSION SYSTEM [L3 WITH TC]

01-16–8

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Revised 10/2006 (Ref. No. R144/06)

EVAP system leak detection pump and bracket removal note

Note

• Because the AWD EVAP system leak detection pump is installed surrounded by the rear differential, there 

is insufficient space for removing the pump from the vehicle. Therefore, it is necessary to remove the 
EVAP system leak detection pump and bracket separately from the vehicle.

1. Reverse the EVAP system leak detection pump 

and bracket.

2. Remove the installation screws from the EVAP 

system leak detection pump.

3. Remove the EVAP system leak detection pump.
4. Remove the EVAP system leak detection pump 

bracket.

End Of Sie

EVAPORATIVE EMISSION (EVAP) SYSTEM LEAK DETECTION PUMP INSPECTION[L3 WITH TC]

id011639800800

Airflow Inspection

Note

• Perform the following test only when directed.

1. Disconnect the negative battery cable.
2. Remove the EVAP system leak detection pump. (See01-16-7 EVAPORATIVE EMISSION (EVAP) SYSTEM 

LEAK DETECTION PUMP REMOVAL/INSTALLATION[L3 WITH TC].)

3. Blow air into port A and verify that there is airflow 

from port B.

• If not as specified, replace the EVAP system 

leak detection pump.

4. Blow air into port B and verify that there is airflow 

from port A.

• If not as specified, replace the EVAP system 

leak detection pump.

• If as specified, perform the following 

“Resistance Inspection”.

End Of Sie

acxuuw00002565

BRACKET

EVAP SYSTEM LEAK
DETECTION PUMP

EVAP SYSTEM LEAK 
DETECTION PUMP 
INSTATION SCREW

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EVAP SYSTEM LEAK 
DETECTION PUMP

CHARCOAL 
CANISTER SIDE

AIR FILTER 
SIDE

A

B

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EMISSION SYSTEM [L3 WITH TC]

01–16–8–1

01-16

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

01-16-8

EMISSION SYSTEM [L3 WITH TC]

Resistance Inspection

Note

• Perform the following procedure only when directed.

1. Disconnect the negative battery cable.
2. Inspect resistance of the EVAP system leak 

detection pump.

• If not as specified, replace the EVAP system 

leak detection pump.

• If as specified, carry out the “Circuit Open/

Short Inspection”.

Terminals

Resistance (ohm)

A— B

20— 50

A— C

26.6— 32.4

A— D

MAX. 118

1AS

A

C
D

B

EVAP SYSTEM
LEAK DETECTION PUMP

MAIN RELAY

PCM

M

1V

acxuuw00000042

EMISSION SYSTEM [L3 WITH TC]

01–16–8–2

2007 Mazda CX-7 Workshop Manual (1871–1U–06B)

Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See01-40-6 PCM REMOVAL/INSTALLATION[L3 WITH TC].)
2. Inspect the following wiring harnesses for an 

open or short circuit (continuity check).

Open circuit

• If there is no continuity, there is an open circuit. Repair or replace the wiring harness.

— EVAP system leak detection pump terminal A and main relay terminal E

— EVAP system leak detection pump terminal B and the body ground

— EVAP system leak detection pump terminal C and PCM terminal 1V

— EVAP system leak detection pump terminal D and PCM terminal 1AS

Short circuit

• If there is continuity, there is a short circuit. Repair or replace the wiring harness.

— EVAP system leak detection pump terminal A and body ground

— EVAP system leak detection pump terminal B and power supply

— EVAP system leak detection pump terminal C and power supply

— EVAP system leak detection pump terminal C and body ground

— EVAP system leak detection pump terminal D and power supply

— EVAP system leak detection pump terminal D and body ground

End Of Sie

C

D

A

B

EVAP SYSTEM

LEAD DETECTION PUMP

WIRING HARNESS SIDE CONNECTOR

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FUSE BOX

(MAIN RELAY)

A

E

B

D

FRONT

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2BE 2BA 2AW 2AS 2AO 2AK 2AG 2AC 2Y 2U 2Q 2M

2E

2A

2I

2BH 2BD 2AZ 2AV 2AR 2AN 2AJ 2AF 2AB 2X 2T 2P

2H

2D

2L

2BG 2BC 2AY 2AU 2AQ 2AM 2AI 2AE 2AA 2W 2S 2O

2G

2C

2K

2BF 2BB 2AX 2AT 2AP 2AL 2AH 2AD 2Z

2V 2R 2N

2F

2B

2J

1BE 1BA 1AW 1AS 1AO 1AK 1AG 1AC 1Y 1U 1Q 1M

1E

1A

1I

1BH 1BD 1AZ 1AV 1AR 1AN 1AJ 1AF 1AB 1X

1T

1P

1H

1D

1L

1BG 1BC 1AY 1AU 1AQ 1AM 1AI 1AE 1AA 1W 1S 1O

1G

1C

1K

1BF 1BB 1AX 1AT 1AP 1AL 1AH 1AD 1Z

1V

1R 1N

1F

1B

1J

PCM

WIRING HARNESS-SIDE CONNECTOR

acxuuw00000044

 

 

 

 

 

 

 

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