Mazda CX 7. Manual — part 139

CRUISE CONTROL SYSTEM [L3 WITH TC]

01-20–1

01-20

01-20

CRUISE CONTROL SYSTEM [L3 WITH TC]

CRUISE CONTROL SWITCH

INSPECTION[L3 WITH TC] . . . . . . . . . 01-20–1

End of Toc

WM: CRUISE CONTROL SWITCH

CRUISE CONTROL SWITCH INSPECTION[L3 WITH TC]

id012039800100

1. Disconnect the negative battery cable.
2. Remove the driver-side air bag module. (See08-10-6 DRIVER-SIDE AIR BAG MODULE REMOVAL/

INSTALLATION.)

3. Disconnect the cruise control switch connector.
4. Inspect for resistance and continuity between the

cruise control switch terminals using an
ohmmeter.

• If not as specified, replace the cruise control

switch.

End Of Sie

CRUISE
CONTROL MAIN
SWITCH

SET/COAST
SWITCH

RESUME/ACCEL
SWITCH

CANCEL SWITCH

D
E

B

C

A

B

C

D E

F

G H

acxuuw00000280

: Continuity

: Resistance

: Diode

Switch position

Cruise control main
switch held at on

CANCEL switch
held at on

SET/COAST
switch held at on

RESUME/ACCEL
switch held at on

Neutral

R

1

R

1

: 117.6—122.4 ohms R

2

: 666.4—693.6 ohms

R

3

: 2,156—2,244 ohms

R

2

R

3

Terminal

B

C

D

E

acxuuw00000281

1871-1U-06B(01-20).fm 1 ページ ２００６年３月１５日 水曜日 午前１０時５２分

CONTROL SYSTEM [L3 WITH TC]

01-40–1

01-40

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

Revised 12/2006 (Ref. No. R215/06)

01-40

CONTROL SYSTEM [L3 WITH TC]

CONTROL SYSTEM COMPONENT

LOCATION INDEX[L3 WITH TC] . . . . . 01-40–2

CONTROL SYSTEM DIAGRAM

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–3

CONTROL SYSTEM WIRING DIAGRAM

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–4

PCM REMOVAL/INSTALLATION

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–6

PCM Connector Connection Note . . . . 01-40–6

PCM INSPECTION[L3 WITH TC] . . . . . 01-40-6–1

Without Using the M-MDS . . . . . . . . . 01-40-6–1
Inspection Using An Oscilloscope

(Reference) . . . . . . . . . . . . . . . . . . . . 01-40–13

Using the M-MDS. . . . . . . . . . . . . . . . . 01-40–16

PCM CONFIGURATION

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–21

POWER STEERING PRESSURE (PSP)

SWITCH INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–22

Continuity Inspection . . . . . . . . . . . . . . 01-40–22
Circuit Open/Short Inspection . . . . . . . 01-40–22

VARIABLE SWIRL SHUTTER VALVE

SWITCH INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–23

Voltage Inspection . . . . . . . . . . . . . . . . 01-40–23
Circuit Open/Short Inspection . . . . . . . 01-40–24

ENGINE COOLANT TEMPERATURE

(ECT) SENSOR
REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–24

ENGINE COOLANT TEMPERATURE

(ECT) SENSOR INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–25

ECT Sensor Resistance Inspection . . . 01-40–25
Circuit Open/Short Inspection . . . . . . . 01-40–25

MASS AIR FLOW (MAF) SENSOR

INSPECTION[L3 WITH TC] . . . . . . . . . 01-40–26

Visual Inspection . . . . . . . . . . . . . . . . . 01-40–26
Voltage Inspection . . . . . . . . . . . . . . . . 01-40–26
Circuit Open/Short Inspection . . . . . . . 01-40–26

INTAKE AIR TEMPERATURE (IAT)

SENSOR INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–27

Resistance Inspection . . . . . . . . . . . . . 01-40–27
Circuit Open/Short Inspection . . . . . . . 01-40–28

MANIFOLD ABSOLUTE PRESSURE

(MAP) SENSOR/BOOST AIR
TEMPERATURE SENSOR
REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–29

MANIFOLD ABSOLUTE PRESSURE

(MAP) SENSOR INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . 01-40–29

Circuit Open/Short Inspection . . . . . . . 01-40–30

BOOST AIR TEMPERATURE SENSOR

INSPECTION[L3 WITH TC]. . . . . . . . . . 01-40–31

Resistance Inspection . . . . . . . . . . . . . 01-40–31
Circuit Open/Short Inspection . . . . . . . 01-40–31

THROTTLE POSITION (TP) SENSOR

INSPECTION[L3 WITH TC]. . . . . . . . . . 01-40–32

Voltage Inspection . . . . . . . . . . . . . . . . . 01-40–32
Circuit Open/Short Inspection . . . . . . . . 01-40–33

ACCELERATOR PEDAL POSITION

(APP) SENSOR INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–33

Voltage Inspection . . . . . . . . . . . . . . . . . 01-40–33
Circuit Open/Short Inspection . . . . . . . . 01-40–34

FUEL PRESSURE SENSOR

REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–35

FUEL PRESSURE SENSOR

INSPECTION[L3 WITH TC]. . . . . . . . . . 01-40–35

Circuit Open/Short Inspection . . . . . . . . 01-40–36

HEATED OXYGEN SENSOR (HO2S)

REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–37

HO2S Removal Note. . . . . . . . . . . . . . . 01-40–37

HEATED OXYGEN SENSOR (HO2S)

INSPECTION[L3 WITH TC] . . . . . . . . . . 01-40–37

Front HO2S Current Inspection. . . . . . . 01-40–37
Front HO2S Heater

Resistance Inspection . . . . . . . . . . . . . 01-40–38

Front HO2S Circuit

Open/Short Inspection (Sensor) . . . . 01-40–38

Rear HO2S Voltage Inspection . . . . . . . 01-40–39
Rear HO2S Circuit

Open/Short Inspection (Sensor) . . . . . 01-40–40

Rear HO2S Heater

Resistance Inspection . . . . . . . . . . . . . 01-40–41

Rear HO2S Circuit Open/Short

Inspection (Heater). . . . . . . . . . . . . . . 01-40–41

CRANKSHAFT POSITION (CKP)

SENSOR REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–42

Removal . . . . . . . . . . . . . . . . . . . . . . . . 01-40–42
Installation . . . . . . . . . . . . . . . . . . . . . . . 01-40–42

CRANKSHAFT POSITION (CKP)

SENSOR INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–43

Air Gap Inspection. . . . . . . . . . . . . . . . . 01-40–43
Visual Inspection . . . . . . . . . . . . . . . . . . 01-40–43
Voltage Inspection . . . . . . . . . . . . . . . . . 01-40–43
Circuit Open/Short Inspection . . . . . . . . 01-40–44

CAMSHAFT POSITION (CMP) SENSOR

REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–45

CAMSHAFT POSITION (CMP) SENSOR

INSPECTION[L3 WITH TC] . . . . . . . . . . 01-40–45

Visual Inspection . . . . . . . . . . . . . . . . . . 01-40–45
Voltage Inspection . . . . . . . . . . . . . . . . . 01-40–45
Circuit Open/Short Inspection . . . . . . . . 01-40–46

KNOCK SENSOR (KS)

REMOVAL/INSTALLATION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–47

KNOCK SENSOR (KS) INSPECTION

[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–47

Resistance Inspection . . . . . . . . . . . . . . 01-40–47
Circuit Open/Short Inspection . . . . . . . . 01-40–48

BAROMETRIC PRESSURE (BARO)

SENSOR INSPECTION
[L3 WITH TC] . . . . . . . . . . . . . . . . . . . . . 01-40–48

End of Toc

CONTROL SYSTEM [L3 WITH TC]

01-40–2

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

WM: ENGINE CONTROL SYSTEM

CONTROL SYSTEM COMPONENT LOCATION INDEX[L3 WITH TC]

id014039800200

.

WU-TWC

9

6

4

8

2

1

7

5

3

10

11

12

13

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1

PCM (Built-in BARO sensor)
(See01-40-6 PCM REMOVAL/INSTALLATION[L3
WITH TC].)
(See01-40-7 PCM terminal voltage table
(Reference).)
(See01-40-21 PCM CONFIGURATION[L3 WITH
TC].)
(See01-40-48 BAROMETRIC PRESSURE (BARO)
SENSOR INSPECTION[L3 WITH TC].)

2

PSP switch
(See01-40-22 POWER STEERING PRESSURE
(PSP) SWITCH INSPECTION[L3 WITH TC].)

3

APP sensor
(See01-40-33 ACCELERATOR PEDAL POSITION
(APP) SENSOR INSPECTION[L3 WITH TC].)

4

TP sensor
(See01-40-32 THROTTLE POSITION (TP)
SENSOR INSPECTION[L3 WITH TC].)

5

ECT sensor
(See01-40-24 ENGINE COOLANT TEMPERATURE
(ECT) SENSOR REMOVAL/INSTALLATION[L3
WITH TC].)
(See01-40-25 ENGINE COOLANT TEMPERATURE
(ECT) SENSOR INSPECTION[L3 WITH TC].)

6

MAF/IAT sensor
(See01-40-26 MASS AIR FLOW (MAF) SENSOR
INSPECTION[L3 WITH TC].)
(See01-40-27 INTAKE AIR TEMPERATURE (IAT)
SENSOR INSPECTION[L3 WITH TC].)