Mazda CX-9 Grand Touring. Manual — part 551

Fig. 9: Identifying Steering Lock Unit Terminals
Courtesy of MAZDA MOTORS CORP.

VOLTAGE SPECIFICATION

Terminal

Signal name

Connected to

Measured

condition

Voltage

(V)

Inspection item(s)

C

Interior light
power supply



BCM



Ignition key
illumination

Under any
condition

B+



Ignition key illumination
bulb



BCM (See BODY
CONTROL MODULE
(BCM) INSPECTION )



Related wiring harnesses

D

Ignition key
illumination
control



BCM



Ignition key
illumination

Ignition switch
off and driver
side door
opened.

1.0 or

less



Ignition key illumination
bulb



BCM (See BODY
CONTROL MODULE
(BCM) INSPECTION )



Related wiring harnesses

15 s or more
after all doors
closed.

B+

E

Push switch
signal

Keyless control
module

Start knob
pressed

B+



Keyless control module
(See KEYLESS
CONTROL MODULE
INSPECTION
[ADVANCED
KEYLESS SYSTEM] )



Related wiring harnesses

Start knob
released

1.0 or
less

F

Power supply

BCM

Under any
condition

B+



BCM (See BODY
CONTROL MODULE
(BCM) INSPECTION )



Related wiring harnesses

G

Key reminder
switch signal

Keyless control
module

Key inserted

B+



Keyless control module
(See KEYLESS
CONTROL MODULE
INSPECTION

1.0 or

2008 Mazda CX-9 Grand Touring

2008 ACCESSORIES & BODY, CAB Power Systems - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:41:28 AM

Page 5

© 2005 Mitchell Repair Information Company, LLC.

RELAY LOCATION

Key removed

less

[ADVANCED
KEYLESS SYSTEM] )



Related wiring harnesses

I

Power supply

BCM

Under any
condition

B+



BCM (See BODY
CONTROL MODULE
(BCM) INSPECTION )



Related wiring harnesses

K

Serial
communication

Keyless control
module

Because this terminal is

for communication,

good/no good judgment

by terminal voltage is not

possible.



Keyless control module
(See KEYLESS
CONTROL MODULE
INSPECTION
[ADVANCED
KEYLESS SYSTEM] )



Related wiring harnesses

L

GND

Body ground

Under any
condition

1.0 or

less

Related wiring harnesses

2008 Mazda CX-9 Grand Touring

2008 ACCESSORIES & BODY, CAB Power Systems - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:41:28 AM

Page 6

© 2005 Mitchell Repair Information Company, LLC.

Fig. 10: Identifying Relay Location
Courtesy of MAZDA MOTORS CORP.

RELAY INSPECTION

RELAY TYPE

RELAY TYPE REFERENCE

Terminal type

Part name



Main relay No. 1



Fuel pump relay



Rear window defroster relay

2008 Mazda CX-9 Grand Touring

2008 ACCESSORIES & BODY, CAB Power Systems - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:41:28 AM

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© 2005 Mitchell Repair Information Company, LLC.

TYPE A

1. Verify the continuity between the relay terminals.



If not as indicated in the table, replace the relay.

Fig. 11: Relay Terminals Continuity Chart (Type A)
Courtesy of MAZDA MOTORS CORP.

4 terminals

Type A



Starter relay



Back-up light relay



A/C relay



TNS relay



Horn relay



Seat warmer relay RH



H/L HI relay



Main relay No.2



H/L LOW relay



Seat warmer relay LH



Front fog light relay

Type B



Front blower relay



Rear blower relay



Fan relay



Cooling fan relay No.1



Cooling fan relay No.2

2008 Mazda CX-9 Grand Touring

2008 ACCESSORIES & BODY, CAB Power Systems - Mazda CX-9

Microsoft

Sunday, November 15, 2009 10:41:28 AM

Page 8

© 2005 Mitchell Repair Information Company, LLC.