Mazda 6. Manual — part 97

ELECTRICAL SYSTEM

GI–19

GI

• Connectors can be disconnected by pressing or

pulling the lock lever as shown.

Locking connector

• When locking connectors, listen for a click

indicating they are securely locked.

Inspection

• When a tester is used to inspect for continuity or

measuring voltage, insert the tester probe from
the wiring harness side.

• Inspect the terminals of waterproof connectors

from the connector side since they cannot be
accessed from the wiring harness side.

Caution

• To prevent damage to the terminal, wrap

a thin wire around the tester probe before
inserting into terminal.

WGIWXX0042E

X3U000WB1

X3U000WB2

WGIWXX0045E

GI–20

ELECTRICAL SYSTEM

Terminals
Inspection

• Pull lightly on individual wires to verify that they

are secured in the terminal.

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 the color of the stripe.

X3U000WB4

X3U000WB5

X3U000WB6

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

X3U000WB7

ELECTRICAL SYSTEM

GI–21

GI

Fuse
Replacement

• When replacing a fuse, be sure to replace it with

one of the same capacity. If a fuse fails 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.

Direction of View for Connector
Part-side connector
Direction of view is from the terminal side.
*

: Part names are shown only when there are

multiple connector drawings.

YMU000WA1

YMU000WAK

WGIWXX0100E

GI–22

ELECTRICAL SYSTEM

Vehicle-harness-side connector
Direction of view is from the harness side.
*

: Part names are shown only when there are

multiple connector drawings.

Other
Because vehicle-harness-side connectors, such as
the DLC 2, have to be viewed from the terminal side,
the direction of view is from the terminal side.

End Of Sie

ELECTRICAL TROUBLESHOOTING TOOLS

A6E201700006W03

Jumper wire

• A jumper wire is used to create a temporary

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

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.

WGIWXX0101E

WGIWXX0102E

X3U000WBB