Mazda CX-9 2007 Service Highlights page 480

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AUTO LIGHT-OFF SYSTEM OUTLINE
• The auto light/wiper control module has an auto light-off timer function.
• The auto light/wiper control module has been adopted in which the auto light, auto wiper, DRL, and auto light-
off systems are consolidated.
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AUTO LIGHT-OFF SYSTEM OPERATION
Operation
• When the following conditions are satisfied, the auto light/wiper control module turns on the lights and activates
the built-in timer. When the specified time has passed, the lights go off.
Condition before operation
• Ignition switch is at ON position.
• Headlight switch is at TNS or headlight position.
• Headlight switch is in AUTO position and auto
light system is operating. (Vehicles with auto light
system)
• Ignition switch is at LOCK or ACC position.
• Headlight switch is at TNS position and timer is
operating.
• Headlight switch is at AUTO position and timer is
operating. (Vehicles with auto light system)
• The timer is canceled according to the following conditions, and then the system operates as follows:
Cancel condition
Ignition switch is turned to ON
position.
Headlight switch is turned off.
Headlight switch is turned AUTO
position. (Vehicles with auto light
system)
• The lights turn on when the ignition switch is at the ON position and the headlight switch is at the TNS or
headlight position, even if the auto light/wiper control module is malfunctioning.
Timing Chart
IGNITION
SWITCH
AUTO
HEAD
HEADLIGHT
SWITCH
TNS RELAY
HEADLIGHT
RELAY
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09-18–14
LIGHTING SYSTEMS
Ignition switch is turned to LOCK or ACC position.
Headlight switch is turned to TNS or headlight
position.
Headlight switch is turned to headlight position.
• When headlight switch is at TNS position, TNS relay turns on.
• When headlight switch is at headlight position, headlight relay and TNS relay turns on.
TNS and headlight relays turn off.
TNS and headlight relays turn off.
ON
OFF
TNS
OFF
t t
1 1
ON
OFF
ON
OFF
RELAY CONDITION JUST BEFORE
IG OFF IS MAINTAINED
Operation condition
Auto light-off system operation
t t
t 1
1
A B A
Illumination time
Approx. 30 seconds
1
B
B
t : APPROX. 30 SECONDS
1
A : TIMER RESTART
B : TIMER CANCEL
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