Mazda CX-9 Grand Touring. Manual — part 487

Fig. 50: DRL & Auto Light-Off System (Vehicles Without DRL) - Wiring Diagram
Courtesy of MAZDA MOTORS CORP.

AUTO LIGHT-OFF CONTROL MODULE

2008 Mazda CX-9 Grand Touring

2008 BODY & ACCESSORIES Lighting Systems - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:39:06 AM

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© 2005 Mitchell Repair Information Company, LLC.

Fig. 51: DRL & Auto Light-Off System (Auto Light-Off Control Module) - Wiring Diagram
Courtesy of MAZDA MOTORS CORP.

AUTO LIGHT-OFF CONTROL MODULE REMOVAL/INSTALLATION

1. Disconnect the negative battery cable.

2. Remove the dashboard under cover (Driver side). (See DASHBOARD UNDER COVER

REMOVAL/INSTALLATION .)

3. Remove in the order indicated in the table.

2008 Mazda CX-9 Grand Touring

2008 BODY & ACCESSORIES Lighting Systems - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:39:06 AM

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© 2005 Mitchell Repair Information Company, LLC.

Fig. 52: Identifying Auto Light-Off Control Module, Connector, Bolt & Torque Specifications
Courtesy of MAZDA MOTORS CORP.

4. Install in the reverse order of removal.

AUTO LIGHT-OFF CONTROL MODULE INSPECTION

1. Measure the voltage at the auto light-off control module terminals as indicated below.

TERMINAL VOLTAGE LIST (REFERENCE)

Fig. 53: Identifying Auto Light-Off Control Module Connector Terminals
Courtesy of MAZDA MOTORS CORP.

CONNECTOR TERMINALS REFERENCE

Terminal

Signal

Connection

Test condition

Voltage

Action

2008 Mazda CX-9 Grand Touring

2008 BODY & ACCESSORIES Lighting Systems - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:39:06 AM

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© 2005 Mitchell Repair Information Company, LLC.

AUTO LIGHT/WIPER CONTROL MODULE REMOVAL/INSTALLATION

1. Disconnect the negative battery cable.

2. Remove the dashboard under cover (Driver side). (See DASHBOARD UNDER COVER

REMOVAL/INSTALLATION .)

(V)

2C

IG 1

METER 10 A
fuse

Ignition switch at ON

B+



METER 10 A fuse



Related wiring harnesses

Ignition switch at LOCK
or ACC

1.0 or
less

2D

Power
supply



BCM



ROOM
15 A
fuse

Constant

B+



BCM (See BODY
CONTROL MODULE
(BCM) INSPECTION .)



Inspect ROOM 15 A fuse



Related wiring harnesses

2G

TNS relay
operation

TNS relay

Light switch at low-
beam or high-beam
position

Below

1.5



TAIL 10 A fuse



TNS relay (See RELAY
INSPECTION .)



Related wiring harnesses

Light switch at OFF

B+

2K

H/L LOW
relay
operation

H/L LOW
relay

Light switch at high-
beam position

Below

1.5



H/L LOW relay (See
RELAY
INSPECTION .)



Related wiring harnesses

Light switch at OFF or
low-beam position

B+

2M

TNS switch
on/off

Light switch

Ignition
switch at
ON

Light switch
at low-beam
or high-beam
position

1.0 or

less



Light switch (See
LIGHT SWITCH
INSPECTION.)



Related wiring harnesses

Light switch
at OFF
position

B+

2N

Light
switch
on/off

Light switch

Ignition
switch at
ON

Light switch
at low-beam
or high-beam
position

1.0 or

less



Light switch (See
LIGHT SWITCH
INSPECTION.)



Related wiring harnesses

Light switch
at OFF
position

B+

2O

GND

GND

Under any condition

1.0 or

less



Related wiring harnesses

NOTE:



Auto light-off system are integrated with the auto light/wiper control
module.

2008 Mazda CX-9 Grand Touring

2008 BODY & ACCESSORIES Lighting Systems - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:39:06 AM

Page 32

© 2005 Mitchell Repair Information Company, LLC.