Mazda CX 7. Manual - part 438

 

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Mazda CX 7. Manual - part 438

 

 

CONTROL SYSTEM 

09-40–3

09-40

1K

Power door lock 
power supply

Main fuse block

Under any condition

B+

• Related wiring 

harnesses

1L

Rear washer 
motor control

Rear washer 
motor

Ignition switch at 
ON

Rear washer 
switch on

1.0 or less

• Rear washer motor

• Related wiring 

harnesses

Rear washer 
switch off

B+

1M

Front turn light 
(RH) control

Front turn light 
(RH)

Turn switch (RH) 
on

Front turn light 
(RH) flashes

Alternates 

between 1.0 

or less and 

B+

• Front turn light (RH)

• Related wiring 

harnesses

Hazard warning 
switch on

Other

1.0 or less

1N

Rear washer 
motor power 
supply

Rear washer 
motor

Ignition switch at ON

B+

• Ignition switch

• Rear washer motor

• Related wiring 

harnesses

Ignition switch off

1.0 or less

1O

Front turn light 
(LH) control

Front turn light 
(LH)

Turn switch (LH) 
on

Front turn light 
(LH) flashes

Alternates 

between 1.0 

or less and 

B+

• Front turn light (LH)

• Related wiring 

harnesses

Hazard warning 
switch on

Other

1.0 or less

1P

Back-up light 
power supply

Back-up light 
relay

Back-up light on

B+

• Back-up light relay

• Back-up light

• Related wiring 

harnesses

Back-up light off

1.0 or less

3A

Security light 
control

Instrument 
cluster

Security light on

1.0 or less

• Instrument cluster

• Related wiring 

harnesses

Security light off

B+

3B

— — 

— 

— 

— 

3C

Key reminder 
switch signal

• Steering lock 

unit (with 
advanced 
keyless 
system)

• Key reminder 

switch (with 
keyless entry 
system)

Key inserted

B+

• Steering lock unit (with 

advanced keyless 
system)

• Key reminder 

switch(with keyless 
entry system)

• Related wiring 

harnesses

Key removed

1.0 or less

3D

Ignition key 
illumination 
power supply

Ignition key 
illumination

Under any condition

B+

• Related wiring 

harnesses

3E

Ignition key 
illumination 
control

Ignition key 
illumination

Ignition switch off and driver-side 
door opened.

1.0 or less

• Ignition key illumination 

bulb

• Related wiring 

harnesses

15 s or more after all doors closed.

B+

3F

Key reminder 
switch power 
supply

Key reminder 
switch

Under any condition

B+

• Related wiring 

harnesses

3G

Serial 
communication

Keyless control 
module

Because this terminal is for 
communication, good/no good 
judgment by terminal voltage is not 
possible.

— 

• Keyless control module

• Related wiring 

harnesses

3H

Horn switch 
signal

Hor switch

Hor switch off

B+

• Hor switch

• Related wiring 

harnesses

Hor switch on

1.0 or less

3I

Steering angle 
sensor GND

Steering angle 
sensor

Under any condition

1.0 or less

• Related wiring 

harnesses

3J

Hazard warning 
switch signal

Hazard warning 
switch

Hazard warning switch on

1.0 or less

• Hazard warning switch

• Related wiring 

harnesses

Hazard warning switch off

B+

3K

Steering angle 
sensor signal (Z)

Steering angle 
sensor

Under any condition: Inspect for 
continuity to steering angle sensor.

Continuity 

detected

• Related wiring 

harnesses

Termin

al

Signal

Connected to

Measurement condition

Voltage (V)/

Continuity

Inspection item (s)

1871-1U-06B(09-40).fm  3 ページ  2006年3月15日 水曜日 午後1時9分

CONTROL SYSTEM 

09-40–4

3L

Turn switch input 
(LH)

Turn switch

Ignition switch at 
ON

Turn switch at 
left position

1.0 or less

• Turn switch

• Related wiring 

harnesses

Other

B+

3M

Steering angle 
sensor signal (C)

Steering angle 
sensor

Under any condition: Inspect for 
continuity to steering angle sensor.

Continuity 

detected

• Related wiring 

harnesses

3N

Turn switch input 
(RH)

Turn switch

Ignition switch at 
ON

Turn switch at 
right position

1.0 or less

• Turn switch

• Related wiring 

harnesses

Other

B+

3O

Steering angle 
sensor signal (B)

Steering angle 
sensor

Under any condition: Inspect for 
continuity to steering angle sensor.

Continuity 

detected

• Related wiring 

harnesses

3P

— — 

— 

— 

— 

3Q

Steering angle 
sensor signal (A)

Steering angle 
sensor

Under any condition: Inspect for 
continuity to steering angle sensor.

Continuity 

detected

• Related wiring 

harnesses

3R

Rear wiper 
switch signal 
(INT)

Windshield wiper 
and washer 
switch

Ignition switch at 
ON

Rear wiper 
switch at INT 
position

1.0 or less

• Wiper and washer 

switch

• Related wiring 

harnesses

Other

B+

3S

Steering angle 
sensor power 
supply

Steering angle 
sensor

Fifteen hours after key removed 
and all doors closed.

approx. 2.5

• Steering angle sensor

• Related wiring 

harnesses

Other

5

3T

Rear wiper 
switch signal 
(on)

Windshield wiper 
and washer 
switch

Ignition switch at 
ON

Rear wiper 
switch at ON 
position

1.0 or less

• Wiper and washer 

switch

• Related wiring 

harnesses

Other

B+

3U

BCM GND

Body ground

Under any condition: Inspect for 
continuity to ground.

Continuity 

detected

• Related wiring 

harnesses

3V

A/C on request 
signal

Climate control 
unit (manual air 
conditioner)

A/C on

1.0 or less

• Climate control unit 

(manual air conditioner)

• Related wiring 

harnesses

A/C off

5

3W

CAN_H

— 

Because this terminal is for 
communication, good/no good 
judgment by terminal voltage is not 
possible.

— 

• Related wiring 

harnesses

3X

CAN_L

— 

Because this terminal is for 
communication, good/no good 
judgment by terminal voltage is not 
possible.

— 

• Related wiring 

harnesses

4A

BCM GND

Body ground

Under any condition: Inspect for 
continuity to ground.

Continuity 

detected

• Related wiring 

harnesses

4B

Tail light power 
supply

TNS relay

Light switch at TNS position

B+

• TNS relay

• Related wiring 

harnesses

Light switch at OFF position

1.0 or less

4D

Rear wiper and 
washer power 
supply

• Fuse block

• Rear wiper 

motor

Ignition switch at ON

B+

• Ignition switch

• Rear wiper motor

• Related wiring 

harnesses

Ignition switch off

1.0 or less

4F

Rear washer 
switch signal

Windshield wiper 
and washer 
switch

Ignition switch at 
ON

Rear washer 
switch on

1.0 or less

• Windshield wiper and 

washer switch

• Related wiring 

harnesses

Rear washer 
switch off

B+

4G

— — 

— 

— 

— 

4H

Heated outer 
mirror power 
supply

Rear window 
defloster relay

Rear window defloster relay on

B+

• Rear window defloster 

relay

• Related wiring 

harnesses

Rear window defloster relay off

1.0 or less

4I

BCM power 
supply

Fuse block

Under any condition

B+

• Ignition switch

• Related wiring 

harnesses

4J

BCM power 
supply

Fuse block

Under any condition

B+

• Related wiring 

harnesses

Termin

al

Signal

Connected to

Measurement condition

Voltage (V)/

Continuity

Inspection item (s)

1871-1U-06B(09-40).fm  4 ページ  2006年3月15日 水曜日 午後1時9分

CONTROL SYSTEM 

09-40–5

09-40

5A

Driver-side door 
key cylinder 
switch signal

Driver-side door 
key cylinder 
switch

At the moment key cylinder is 
unlocked

1.0 or less

• Driver-side door key 

cylinder switch

• Related wiring 

harnesses

At the moment key cylinder is 
locked

2.5

Other

5

5B

Serial 
communication

• Power 

window main 
switch

• Sunroof 

motor

Because this terminal is for 
communication, good/no good 
judgment by terminal voltage is not 
possible.

— 

• Power window main 

switch

• Sunroof motor

• Related wiring 

harnesses

5C

CAN_L

— 

Because this terminal is for 
communication, good/no good 
judgment by terminal voltage is not 
possible.

— 

• Related wiring 

harnesses

5D

Lock/unlock 
input (rear door 
lock-link switch 
(LH))

Rear door lock-
link switch (LH)

Rear door (LH) locked

5

• Rear door lock-link 

switch (LH)

• Related wiring 

harnesses

Rear door (LH) unlocked

1.0 or less

5E

Lock/unlock 
input (rear door 
lock-link switch 
(RH))

Rear door lock-
link switch (RH)

Rear door (RH) locked

5

• Rear door lock-link 

switch (RH)

• Related wiring 

harnesses

Rear door (RH) unlocked

1.0 or less

5F

CAN_H

— 

Because this terminal is for 
communication, good/no good 
judgment by terminal voltage is not 
possible.

— 

• Related wiring 

harnesses

5G

Lock input 
(Driver-side door 
lock-link switch)

Driver-side door 
lock-link switch

Driver-side door locked

1.0 or less

• Driver-side door lock-

link switch

• Related wiring 

harnesses

Driver-side door unlocked

5

5H

Lock/unlock 
input 
(passenger-side 
door lock-link 
switch)

Passenger-side 
door lock-link 
switch

Passenger-side door locked

1.0 or less

• Passenger-side door 

lock-link switch

• Related wiring 

harnesses

Passenger-side door unlocked

5

5I

CAN_L

— 

Because this terminal is for 
communication, good/no good 
judgment by terminal voltage is not 
possible.

— 

• Related wiring 

harnesses

5J

Unlock input 
(Driver-side door 
lock-link switch)

Driver-side door 
lock-link switch

Driver-side door locked

5

• Driver-side door lock-

link switch

• Related wiring 

harnesses

Driver-side door unlocked

1.0 or less

5K

— — 

— 

— 

— 

5L

CAN_H

— 

Because this terminal is for 
communication, good/no good 
judgment by terminal voltage is not 
possible.

— 

• Related wiring 

harnesses

5M

Lock/unlock 
signal

Door lock switch 
(driver-side)

Door lock switch (driver-side) is 
pressed to lock.

2.5

• Door lock switch (driver-

side)

• Related wiring 

harnesses

Door lock switch (driver-side) is 
pressed to unlock.

1.0 or less

Other

5

5N

Lock/unlock 
signal

Door lock switch 
(passenger-side)

Door lock switch (passenger-side) 
is pressed to lock.

2.5

• Door lock switch 

(passenger-side)

• Related wiring 

harnesses

Door lock switch (passenger-side) 
is pressed to unlock.

1.0 or less

Other

5

Termin

al

Signal

Connected to

Measurement condition

Voltage (V)/

Continuity

Inspection item (s)

1871-1U-06B(09-40).fm  5 ページ  2006年3月15日 水曜日 午後1時9分

CONTROL SYSTEM 

09-40–6

5O

Rear turn light 
(RH) control

Rear turn light 
(RH)

Turn switch (RH) 
on

Rear turn light 
(RH) flashes

Alternates 

between 1.0 

or less and 

B+

• Reat turn light (RH)

• Related wiring 

harnesses

Hazard warning 
switch on

Other

1.0 or less

5P

Liftgate latch 
switch signal

Liftgate latch 
switch

Liftgate is open.
 (Liftgate latch switch off)

B+

• Liftgate latch switch

• Related wiring 

harnesses

Liftgate is closed.
 (Liftgate latch switch on)

1.0 or less

5Q

— — 

— 

— 

— 

5R

Rear turn light 
(LH) control

Rear turn light 
(LH)

Turn switch (LH) 
on

Rear turn light 
(LH) flashes

Alternates 

between 1.0 

or less and 

B+

• Reat turn light (LH)

• Related wiring 

harnesses

Hazard warning 
switch on

Other

1.0 or less

5S

Rear door switch 
(LH) signal

Rear door switch 
(LH)

Any rear doors open
 (Rear door switch on)

1.0 or less

• Rear door switches

• Related wiring 

harnesses

All rear doors closed
 (Rear door switch off)

B+

5T

Rear door switch 
(RH) signal

Rear door switch 
(RH)

Any rear doors open
 (Rear door switch on)

1.0 or less

• Rear door switches

• Related wiring 

harnesses

All rear doors closed
 (Rear door switch off)

B+

5U

Back-up light 
(RH) control

Back-up light 
(RH)

Back-up light on

B+

• Back-up light relay

• Back-up light (RH)

• Related wiring 

harnesses

Back-up light off

1.0 or less

5V

Front door switch 
(passenger-side) 
signal

Front door switch 
(passenger-side)

Front door (passenger-side) open
 (Front door switch (passenger-
side) on)

1.0 or less

• Front door switch 

(passenger-side)

• Related wiring 

harnesses

Front door (passenger-side) closed
 (Front door switch (passenger-
side) off)

B+

5W

— — 

— 

— 

— 

5X

Back-up light 
(LH) control

Back-up light 
(LH)

Back-up light on

B+

• Back-up light relay

• Back-up light (LH)

• Related wiring 

harnesses

Back-up light off

1.0 or less

5Y

Front door switch 
(driver-side) 
signal

Front door switch 
(driver-side)

Front door (driver-side) open
 (Front door switch (driver-side) on)

1.0 or less

• Front door switch 

(driver-side)

• Related wiring 

harnesses

Front door (driver-side) closed
 (Front door switch (driver-side) off)

B+

5Z

— — 

— 

— 

— 

5AA

Heated outer 
mirror control

Heated outer 
mirror (driver-
side)

Rear window defloster relay on

B+

• Rear window defloster 

relay

• Heated outer mirror 

(driver-side)

• Related wiring 

harnesses

Rear window defloster relay off

1.0 or less

5AB

Tail light (RH) 
control

• License plate 

light (RH)

• Tail light (RH)

• Rear side 

marker light 
(RH)

Light switch at TNS position

B+

• License plate light (RH)

• Taillight (RH)

• Rear side marker light 

(RH)

• Related wiring 

harnesses

Light switch at OFF position

1.0 or less

5AC

Tail light (LH) 
control

• License plate 

light (LH)

• Tail light (LH)

• Rear side 

marker light 
(LH)

Light switch at TNS position

B+

• License plate light (LH)

• Taillight (LH)

• Rear side marker light 

(LH)

• Related wiring 

harnesses

Light switch at OFF position

1.0 or less

Termin

al

Signal

Connected to

Measurement condition

Voltage (V)/

Continuity

Inspection item (s)

1871-1U-06B(09-40).fm  6 ページ  2006年3月15日 水曜日 午後1時9分

 

 

 

 

 

 

 

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