Mazda CX 7. Manual - part 7

GENERAL INFORMATION 

00-00–23

00-00

Replacement

• Use the appropriate tools to remove a terminal as shown. When installing a terminal, be sure to insert it until it 

locks securely.

• Insert a thin piece of metal from the terminal side 

of the connector and with the terminal locking tab 
pressed down, pull the terminal out from the 
connector.

Sensors, Switches, and Relays

• Handle sensors, switches, and relays carefully. 

Do not drop them or strike them against other 
objects.

Wiring Harness
Wiring color codes

• Two-color wires are indicated by a two-color code symbol.

• The first letter indicates the base color of the wire 

and the second is the color of the stripe.

TYPE A

TYPE B

acxuuw00000460

NO GOOD

acxuuw00000461

CODE

COLOR

CODE

COLOR

B

Black

O

Orange

BR

Brown

P

Pink

G

Green

R

Red

GY

Gray

V

Violet

L

Blue

W

White

LB

Light Blue

Y

Yellow

LG

Light Green

–

–

B/R

BR/Y

BLACK

RED

BROWN

YELLOW

acxuuw00000462

GENERAL INFORMATION 

00-00–24

Fuse
Replacement

• When replacing a fuse, be sure to replace it with one of the same capacity. If a fuse malfunctions again, the 

circuit probably has a short and the wiring should be inspected.

• Be sure the negative battery terminal is disconnected before replacing a main fuse.

• When replacing a pullout fuse, use the fuse puller.

Viewing orientation for Connectors

• The viewing orientation for connectors is indicated with a symbol.

• The figures showing the viewing orientation are the same as those used in Wiring Diagrams.

• The viewing orientations are shown in the following three ways.

Part-side connector
The viewing orientation for part-side connectors is 
from the terminal side.
*

:  Part names are shown only when there are 

multiple connector drawings.

Vehicle harness-side connector
The viewing orientation for vehicle wiring harness-
side connectors is from the wiring harness side.

*

:  Part names are shown only when there are 

multiple connector drawings.

PULLER

FUSE

acxuuw00000464

PART NAME*

PART

PART-SIDE CONNECTOR

VIEWING ORIENTATION

PCM

CONNECTOR

VIEWING
ORIENTATION
SYMBOL

acxuuw00000472

NAME OF CONNECTING
PART*

PCM

CONNECTOR

VIEWING
ORIENTATION
SYMBOL

VIEWING ORIENTATION

VEHICLE WIRING
HARNESS-SIDE
CONNECTOR

VEHICLE WIRING HARNESS

acxuuw00000473

GENERAL INFORMATION 

00-00–25

00-00

Other
When it is necessary to show the terminal side of the 
vehicle wiring harness-side connectors, such as the 
following connectors, the viewing orientation is from 
the terminal side.

• Main fuse block and the main fuse block relays

• Data link connector

• Check connector

• Relay box

Electrical Troubleshooting Tools
Jumper wire

Caution

• Do not connect a jumper wire from the power source line to a body ground. This may cause 

burning or other damage to wiring harnesses or electronic components.

• A jumper wire is used to create a temporary 

circuit. Connect the jumper wire between the 
terminals of a circuit to bypass a switch.

Voltmeter

• The DC voltmeter is used to measure circuit 

voltage. A voltmeter with a range of 15 V or more 
is used by connecting the positive (+) probe 
(red lead wire) to the point where voltage will 
be measured and the negative (-) probe (black 
lead wire) to a body ground.

DLC-2

CONNECTOR

VIEWING 
ORIENTATION
SYMBOL

VIEWING ORIENTATION

VEHICLE WIRING HARNESS

acxuuw00000474

acxuuw00000468

V +

-

POWER SOURCE LINE

BLACK LEAD

RED LEAD

acxuuw00000469

GENERAL INFORMATION 

00-00–26

Ohmmeter

Caution

• Do not connect the ohmmeter to any circuit where voltage is applied. This will damage the 

ohmmeter.

• The ohmmeter is used to measure the resistance 

between two points in a circuit and to inspect for 
continuity and short circuits.

Precautions Before Welding
A vehicle has various electrical parts. To protect the parts from excessive current generated when welding, be sure 
to perform the following procedure.

1. Turn the ignition switch to the LOCK position.
2. Disconnect the battery cables.

3. Securely connect the welding machine ground 

near the welding area.

4. Cover the peripheral parts of the welding area to 

protect them from weld spatter.

End Of Sie

POWER SOURCE LINE

GROUND LINE

+

-

NO GOOD

Ω

acxuuw00000470

BATTERY CABLE

acxuuw00000451

GROUND

acxuuw00000471