Mazda 6. Manual — part 284

POWER DOOR LOCK SYSTEM

S–31

S

Door Lock-link Switch

1. Disconnect the front door lock actuator connector.
2. Inspect for continuity between the door lock-link

switch terminals using an ohmmeter.

• If not as specified, replace the front door lock

actuator.

Door Key Cylinder Switch

1. Disconnect the front door lock actuator connector.
2. Inspect for continuity between the door lock-link

switch terminals using an ohmmeter.

• If not as specified, replace the front door lock

actuator.

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POWER DOOR LOCK SYSTEM

REAR DOOR LOCK ACTUATOR INSPECTION

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Door Lock Actuator

1. Disconnect the front door lock actuator connector.
2. Apply battery positive voltage to the front door

lock actuator terminals and inspect the operation
of the front door lock actuator.

• If not as specified, replace the front door lock

actuator.

With double locking system

( ) : RH

Without double locking system

( ) : RH

Door Lock-link Switch (With Theft-deterrent System

1. Disconnect the front door lock actuator connector.
2. Inspect for continuity between the door lock-link

switch terminals using an ohmmeter.

• If not as specified, replace the front door lock

actuator.

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TRUNK LID LOCK ACTUATOR INSPECTION

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1. Disconnect the trunk lid lock actuator connector.
2. Apply battery positive voltage to the trunk lid lock

actuator terminals and inspect the operation of the
trunk lid lock actuator.

• If not as specified, replace the trunk lid lock.

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Connection

Actuator operation

B+

GND

A

(F)

F

(A)

Lock

F

(A)

A

(F)

Double lock

F and E

(A and B)

E

(A)

Unlock

Actuator operation

Connection

B+

GND

Lock

A

(F)

B

(E)

Unlock

B

(E)

A

(F)

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Actuator operation

Connection

B+

GND

Lock

A

B

Unlock

B

A

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POWER DOOR LOCK SYSTEM

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S

LIFTGATE LOCK ACTUATOR INSPECTION

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1. Disconnect the liftgate lock actuator connector.
2. Apply battery positive voltage to the liftgate lock

actuator terminals and inspect the operation of
the liftgate lock actuator.

• If not as specified, replace the liftgate lock.

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DOOR LOCK TIMER UNIT REMOVAL/INSTALLATION

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1. Disconnect the negative battery cable.
2. Remove the glove compartment. (L.H.D.)
3. Remove the bolt.
4. While inclining the door lock timer unit along the

body panel in the direction indicated by the arrow,
disengage the bracket hook from the hole in the
body panel.

5. Disconnect the door lock timer unit connector.
6. Remove the door lock timer unit.

7. Remove the screw, then remove the bracket.

Note

• The screw which fixes the door lock timer

unit and bracket is for a body ground
connection. Be sure to secure the screw
when installing.

8. Install in the reverse order of removal.

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Actuator operation

Connection

B+

GND

Lock

A

B

Unlock

B

A

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POWER DOOR LOCK SYSTEM

DOOR LOCK TIMER UNIT INSPECTION

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1. Measure the voltage at the door lock timer unit terminals (other than terminal 1E and 2W) as indicated below.

• If not as specified, inspect the parts listed under “Action.”

2. Disconnect the negative battery cable.
3. Disconnect the door lock timer unit connector and inspect for continuity between terminal 1E or 2W and the

bracket.

4. Inspect for continuity at terminal 1E and 2W as indicated below.
5. If the parts and wiring harnesses are okay but the system still does not work properly, perform the troubleshooting.

Terminal voltage list (Reference)

Terminal

Signal

Connected to

Test condition

Voltage (V)/

Continuity

Action

1A

Power
supply

D. LOCK 30 A fuse

Under any condition

B+

• Inspect D. LOCK

30 A fuse

• Inspect the vehicle

battery

• Inspect related

harness

1B

Room light
control

• Front map light

• Rear map light

• Courtesy light

Any door is open

Below 1.0

• Inspect ROOM 15 A

fuse

• Inspect door switch

• Inspect front map light

• Inspect rear map light

• Inspect courtesy light

• Inspect related

harness

1C

Unlock
output

• Door lock

actuator

• Trunk lid lock

actuator (4SD)

• Liftgate lock

actuator (5HB)

While lock actuator is unlocking

Below

1.0

→B+→Below

1.0

• Inspect door lock

actuator

• Inspect trunk lid lock

actuator (4SD)

• Inspect liftgate lock

actuator (5HB)

• Inspect D. LOCK

30 A fuse

• Inspect related

harness

Other

Below 1.0

1D

Lock output

• Door lock

actuator

• Trunk lid lock

actuator (4SD)

• Liftgate lock

actuator (5HB)

While lock actuator is locking

Below

1.0

→B+→Below

1.0

• Inspect door lock

actuator

• Inspect trunk lid lock

actuator (4SD)

• Inspect liftgate lock

actuator (5HB)

• Inspect D. LOCK

30 A fuse

• Inspect related

harness

Other

Below 1.0

1E

Power
ground

GND

Under any condition: inspect for
continuity to ground

Yes

• Inspect GND

1F

*1

Double lock
output

Door lock actuator

Door lock actuators are double
locked

Below

1.0

→B+→Below

1.0

• Inspect door lock

actuator

• Inspect related

harness

Other

Below 1.0

2A

Power
supply

METER IG 15 A fuse Under any condition

B+

• Inspect METER IG

15 A fuse

• Inspect related

harness

2B

IG1

ROOM 15 A fuse

Ignition switch is at ON position

B+

• Inspect ROOM 15 A

fuse

• Inspect related

harness

Ignition switch is at LOCK or
ACC position

Below 1.0

2C

-

-

-

-

-

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