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ar8uuw00002200
AUTO LIGHT/WIPER CONTROL MODULE INSPECTION
id091800809500
1. Measure the voltage at the auto light/wiper control module terminals as indicated below.
Terminal Voltage List (Reference)
ar8uuw00002200
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|
Terminal |
Signal |
Connection |
Test condition |
Voltage (V) |
Action |
|
|---|---|---|---|---|---|---|
|
1A*
|
RH headlight operation (high-beam)
|
RH headlight (high-beam)
|
Light switch at HEAD position
|
Dimmer switch at the high-beam position
|
B+
|
• RH headlight
• Related wiring harnesses
|
|
Dimmer switch at the low-beam position
|
1.0 or less
|
|||||
|
DRL mode
|
Approx 6.0
|
|||||
|
1B*
|
LH headlight operation (high-beam)
|
LH headlight (high-beam)
|
Light switch at HEAD position
|
Dimmer switch at the high-beam position
|
B+
|
• LH headlight
• Related wiring harnesses
|
|
Dimmer switch at the low-beam position
|
1.0 or less
|
|||||
|
DRL mode
|
Approx 6.0
|
|||||
|
1C
|
Autostop switch signal
|
Autostop switch
|
Ignition switch at ON
|
Windshield wiper switch at LO position
|
B+
|
• Autostop switch (Windshield wiper motor) (See WINDSHIELD WIPER MOTOR INSPECTION.)
• Related wiring harnesses
|
|
Windshield wiper switch at OFF position
|
1.0 or less
|
|||||
|
1D
|
Windshield wiper switch signal (OFF)
|
Windshield wiper and washer switch
|
Ignition switch at ON
|
Windshield wiper switch at LO position
|
B+
|
• Windshield wiper and washer switch (See WINDSHIELD WIPER AND WASHER SWITCH INSPECTION.)
• Related wiring harnesses
|
|
Windshield wiper switch at OFF position
|
1.0 or less
|
|||||
|
1E
|
IG2
|
WIPER 30 A fuse
|
Ignition switch at ON
|
B+
|
• WIPER 30 A fuse
• Related wiring harnesses
|
|
|
Ignition switch at LOCK or ACC
|
1.0 or less
|
|||||
|
1F
|
Windshield wiper switch signal (HI)
|
Windshield wiper and washer switch
|
Ignition switch at ON
|
Windshield wiper switch at HI position
|
B+
|
• Windshield wiper and washer switch (See WINDSHIELD WIPER AND WASHER SWITCH INSPECTION.)
• Related wiring harnesses
|
|
Windshield wiper switch at OFF position
|
1.0 or less
|
|||||
|
1G*
|
GND
|
GND
|
Under any condition
|
1.0 or less
|
• Related wiring harnesses
|
|
|
1H
|
Windshield wiper switch signal (AUTO)
|
Windshield wiper and washer switch
|
Ignition switch at ON
|
Windshield wiper switch at AUTO position
|
B+
|
• Windshield wiper and washer switch (See WINDSHIELD WIPER AND WASHER SWITCH INSPECTION.)
• Related wiring harnesses
|
|
Windshield wiper switch at OFF position
|
1.0 or less
|
|||||
|
1I*
|
Power supply
|
DRL 15 A fuse
|
Constant
|
B+
|
• DRL 15 A fuse
• Related wiring harnesses
|
|
|
1J
|
Washer switch signal
|
Windshield wiper and washer switch
|
Ignition switch at ON
|
Washer switch at ON position
|
B+
|
• Windshield wiper and washer switch (See WINDSHIELD WIPER AND WASHER SWITCH INSPECTION.)
• Related wiring harnesses
|
|
Washer switch at OFF position
|
1.0 or less
|
|||||
|
1K*
|
LH headlight operation (high-beam)
|
LH headlight (high-beam)
|
Light switch at the OFF position
|
Ignition switch at ON position
|
B+
|
• LH headlight
• Related wiring harnesses
|
|
Ignition switch LOCK or ACC position
|
1.0 or less
|
|||||
|
1L*
|
High-beam on/off
|
Light switch
|
Ignition switch at ON
|
Dimmer switch at high-beam position
|
1.0 or less
|
• Light switch (See LIGHT SWITCH INSPECTION.)
• Related wiring harnesses
|
|
Dimmer switch at low-beam position
|
B+
|
|||||
|
2A
|
Vehicle speed signal input
|
DSC HU/CM or ABS HU/CM
|
Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.
|
—
|
• DSC HU/CM
• ABS HU/CM
• Related wiring harnesses
|
|
|
2B
|
Sensitivity adjustment volume
|
Windshield wiper and washer switch
|
Ignition switch at ON
|
Sensitivity adjustment volume turned from + position to - position
|
0 → 0.8 → 1.5 → 1.9 → 2.2
|
• Windshield wiper and washer switch (See WINDSHIELD WIPER AND WASHER SWITCH INSPECTION.)
• Related wiring harnesses
|
|
2C
|
IG1
|
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
|
ROOM 15 A fuse
|
Constant
|
B+
|
• ROOM 15 A fuse
• Related wiring harnesses
|
|
|
2E
|
Wiper or headlight operation request
|
Auto light (Rain) sensor
|
Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.
|
—
|
• Auto light (Rain) sensor
• Related wiring harnesses
|
|
|
2F
|
DLC-2 power supply
|
DLC-2
|
Under any condition
|
B+
|
• Related wiring harnesses
|
|
|
2G
|
TNS relay operation
|
TNS relay
|
Light switch at low-beam or high-beam position
|
Below 1.5
|
• TNS relay (See RELAY INSPECTION.)
• Related wiring harnesses
|
|
|
Light switch at OFF
|
B+
|
|||||
|
2H
|
Auto light (Rain) sensor operation request
|
Auto light (Rain) sensor
|
Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.
|
—
|
• Auto light (Rain) sensor
• Related wiring harnesses
|
|
|
2I
|
Front fog light relay on/off
|
Front fog light relay
|
Light switch at the headlight position and dimmer switch at LO
|
Front fog light switch at ON position
|
2.0 or less
|
• FRONT FOG LIGHT relay (See RELAY INSPECTION
• Related wiring harnesses
|
|
Front fog light switch at OFF position
|
B+
|
|||||
|
2J
|
Front fog light switch on/off
|
Front fog light switch
|
Light switch at the headlight position and dimmer switch at LO
|
Front fog light switch at ON position
|
1.0 or less
|
• Light switch (See LIGHT SWITCH INSPECTION.)
• Related wiring harnesses
|
|
Front fog light switch at OFF position
|
B+
|
|||||
|
2K
|
HEADLIGHT relay operation
|
HEADLIGHT relay
|
Light switch at high-beam position
|
Below 1.5
|
• HEADLIGHT relay (See RELAY INSPECTION.)
• Related wiring harnesses
|
|
|
Light switch at OFF or low-beam position
|
B+
|
|||||
|
2L
|
AUTO switch signal
|
Light switch
|
Ignition switch at ON
|
Light switch at AUTO position
|
1.0 or less
|
• Light switch (See LIGHT SWITCH INSPECTION.)
• Related wiring harnesses
|
|
Other
|
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
|
Headlight 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
|
|
|
2P*
|
Parking brake switch on/off
|
Parking brake switch
|
Ignition switch at ON
|
Parking brake switch on
|
1.0 or less
|
• Parking brake switch
• Related wiring harnesses
|
|
Parking brake switch OFF
|
B+
|
|||||