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)

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Terminal

Signal

Connection

Test condition

Voltage (V)

Action

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
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
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
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
Instrument cluster
Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.
•  Instrument cluster (See INSTRUMENT CLUSTER INPUT/OUTPUT CHECK MODE.)
•  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
•  BCM
•  ROOM 15 A fuse
Constant
B+
•  ROOM 15 A fuse
•  Related wiring harnesses
2E
Wiper or headlight operation request
Rain sensor
Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.
•  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
Rain sensor operation request
Rain sensor
Because this terminal is for communication, good/no good judgment by terminal voltage is not possible.
•  Rain sensor
•  Related wiring harnesses
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+
2L
Light 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
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