Mazda CX 7. Manual - part 140

CONTROL SYSTEM [L3 WITH TC]

01-40–3

01-40

End Of Sie

CONTROL SYSTEM DIAGRAM[L3 WITH TC]

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End Of Sie

7

HO2S
(See01-40-37 HEATED OXYGEN SENSOR (HO2S) 
REMOVAL/INSTALLATION[L3 WITH TC].)
(See01-40-37 HEATED OXYGEN SENSOR (HO2S) 
INSPECTION[L3 WITH TC].)

8

MAP/boost air temperature sensor
(See01-40-29 MANIFOLD ABSOLUTE PRESSURE 
(MAP) SENSOR/BOOST AIR TEMPERATURE 
SENSOR REMOVAL/INSTALLATION[L3 WITH 
TC].)
(See01-40-29 MANIFOLD ABSOLUTE PRESSURE 
(MAP) SENSOR INSPECTION[L3 WITH TC].)
(See01-40-31 BOOST AIR TEMPERATURE 
SENSOR INSPECTION[L3 WITH TC].)

9

CMP sensor
(See01-40-45 CAMSHAFT POSITION (CMP) 
SENSOR REMOVAL/INSTALLATION[L3 WITH 
TC].)
(See01-40-45 CAMSHAFT POSITION (CMP) 
SENSOR INSPECTION[L3 WITH TC].)

10

KS
(See01-40-47 KNOCK SENSOR (KS) REMOVAL/
INSTALLATION[L3 WITH TC].)
(See01-40-47 KNOCK SENSOR (KS) 
INSPECTION[L3 WITH TC].)

11

CKP sensor
(See01-40-42 CRANKSHAFT POSITION (CKP) 
SENSOR REMOVAL/INSTALLATION[L3 WITH 
TC].)
(See01-40-43 CRANKSHAFT POSITION (CKP) 
SENSOR INSPECTION[L3 WITH TC].)

12

Fuel pressure sensor
(See01-40-35 FUEL PRESSURE SENSOR 
REMOVAL/INSTALLATION[L3 WITH TC].)
(See01-40-35 FUEL PRESSURE SENSOR 
INSPECTION[L3 WITH TC].)

13

Variable swirl shutter valve switch
(See01-40-23 VARIABLE SWIRL SHUTTER VALVE 
SWITCH INSPECTION[L3 WITH TC].)

HO2S (REAR)

HO2S (FRONT)

CKP SENSOR

ECT SENSOR

CMP SENSOR

FUEL PRESSURE 
SENSOR

APP SENSOR

PCM

TP SENSOR

MAF/IAT SENSOR

BARO SENSOR

MAP/BOOST AIR 
TEMPERATURE 
SENSOR

KS

: TO PCM

VARIABLE SWIRL 
SHUTTER VALVE SWITCH

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CONTROL SYSTEM [L3 WITH TC]

01-40–4

CONTROL SYSTEM WIRING DIAGRAM[L3 WITH TC]

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a

a

f

b

b

b

b

c

c

d

e

1BE

1P

1BA

1AY

1AK

1AR

1AV

1AZ

1M

1Y

1Q

2BG

2BB

2BH

2BD

2BC

2BF

2BE

2AZ

1BF

1AX

1AE

1AO

2Q

2C

2D

2N

2I

2R

2P

2M

2Z

2Y

2X

2W

2S

1B

1R

1K

1I

1H

1AW

1AJ

1AC

2AY

2AH

2AV

2AG

2AD

2AC

2AU

1U

1AT

1AA

1BC

PCM

MAF 
SENSOR

APP 
SENSOR

IAT SENSOR

FUEL PRESSURE SENSOR

ECT SENSOR

MAP 
SENSOR

BOOST AIR TEMPERATURE 
SENSOR

HO2S (REAR)

HO2S 
(FRONT)

CKP SENSOR

CMP SENSOR

FUEL INJECTOR 
NO.1

FUEL INJECTOR 
NO.4

FUEL INJECTOR 
NO.3

FUEL INJECTOR 
NO.2

FUEL INJECTOR RELAY

HO2S HEATER (FRONT)

HO2S HEATER (REAR)

FAN CONTROL MODULE NO.1

COOLING FAN
RELAY NO.1

FAN CONTROL MODULE NO.2

COOLING FAN 
RELAY NO.2

A/C RELAY

FUEL PUMP SPEED CONTROL RELAY

FUEL PUMP RESISTOR

FUEL PUMP RELAY

MAIN RELAY

STARTER RELAY

DRIVE-BY-WIRE-RELAY

BATTERY

IGNITION 
SWITCH

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CONTROL SYSTEM [L3 WITH TC]

01-40–5

01-40

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

End Of Sie

WM: PCM

f

d

e

b

2V

2U

1V

2T

1J

1AS

2AB

2AA

2AS

2AF

2E

2B

2A

2H

2F

2G

1AB

1AF

1AU

2AE

2AK

2AP

2AL

2AO

2AQ

2AM

2AR

2AN

1BB

1BG

1BD

1BH

2BA

2AW

2AX

2AT

2AI

2AJ

1AQ

1AM

1AI

KS

TP SENSOR

BRAKE SWITCH NO.1

BRAKE SWITCH NO.2

VARIABLE SWIRL SHUTTER VALVE SWITCH

REFRIGERANT PRESSURE  SWITCH (HIGH, LOW)

REFRIGERANT PRESSURE  SWITCH (MIDDLE)

PSP SWITCH 

CRUISE CONTROL SWITCH 

GENERATOR

CAN

EGR VALVE

EVAP SYSTEM LEAK 
DETECTION PUMP

PURGE SOLENOID VALVE

WASTEGATE CONTROL 
SOLENOID VALVE

VARIABLE SWIRL 
SOLENOID VALVE

OCV

THROTTLE 
ACTUATOR

SPILL VALVE CONTROL 
SOLENOID VALVE

IGNITION COIL NO.1

IGNITION COIL NO.2

IGNITION COIL NO.3

IGNITION COIL NO.4

GENERATOR

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CONTROL SYSTEM [L3 WITH TC]

01-40–6

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

Revised 12/2006 (Ref. No. R215/06)

PCM REMOVAL/INSTALLATION[L3 WITH TC]

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Note

• For PCM replacement, set up the M-MDS and perform the PCM configuration. (See 01-40-21 PCM 

CONFIGURATION[L3 WITH TC].)

1. Disconnect the negative battery cable.
2. Remove the charge air cooler duct. (See01-13-5 INTAKE AIR SYSTEM REMOVAL/INSTALLATION[L3 WITH 

TC].)

3. Remove the Battery and battery tray. (See01-17-2 BATTERY REMOVAL/INSTALLATION[L3 WITH TC].)
4. Remove the mudguard (LH).
5. Remove in the order indicated in the table.
6. When replacing the PCM on the vehicles, perform the following.

• PCM parameter reset (See09-14-11 IMMOBILIZER SYSTEM COMPONENT REPLACEMENT/KEY 

ADDITION AND CLEARING[ADVANCED KEYLESS SYSTEM].) (See09-14-20 IMMOBILIZER SYSTEM 
COMPONENT REPLACEMENT/KEY ADDITION AND CLEARING[KEYLESS ENTRY SYSTEM].)

7. Install in the reverse order of removal.

PCM Connector Connection Note

Caution

• If the PCM connector is inserted at an 

angle and the lever is moved, the 
connector could be damaged. Verify that 
the PCM connector is inserted straight.

End Of Sie

VIEW FROM A

2

3

1

7.8—10.8
{80—110, 69—95}

7.8—10.8
{80—110, 69—95}

7.8—10.8
{80—110, 69—95}

7.8—10.8
{80—110,
69—95}

N·m {kgf·cm, in·lbf}

A

FRONT

FRONT TIRE (LH) SIDE

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1

PCM connector

(See 01-40-6 PCM Connector Connection Note.)

2

PCM

3

PCM bracket

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