Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM1000000028JQ4 |
Model Year Start: 2023 |
Model: GR Corolla |
Prod Date Range: [11/2022 -
] |
Title: LIGHTING (EXT): LIGHTING SYSTEM: Headlight Dimmer Switch Circuit; 2023 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [11/2022 - ] |
Headlight Dimmer Switch Circuit
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DESCRIPTION
The steering sensor receives the following switch information:
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Light control switch in DRL OFF*1, off*2, tail, head, DRL*3 or AUTO*4 position
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Dimmer switch in high, low or high flash (pass) position
-
Fog light switch in front or off position*5
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*1: w/ DRL OFF Switch
-
*2: w/ OFF Switch
-
*3: w/o Automatic Light Control
-
*4: w/ Automatic Light Control
-
*5: w/ Front Fog Light
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
for HV Model:Click here
for Gasoline Model:Click here
PROCEDURE
(a) Read the Data List according to the display on the GTS.
Chassis > Steering Angle Sensor > Data List
Tester Display
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Measurement Item
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Normal Condition
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Reference Value
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Diagnostic Note
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Light OFF Switch
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Light control switch DRL OFF*1 or off*2 position signal
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OFF or ON
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OFF: Light control switch not in DRL OFF*1 or off*2 position
ON: Light control switch in DRL OFF*1 or off*2 position
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*1, *2
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Auto Light Switch
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Light control switch AUTO*3 or DRL*4 position signal
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OFF or ON
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OFF: Light control switch not in AUTO*3 or DRL*4 position
ON: Light control switch in AUTO*3 or DRL*4 position
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-
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Head Light Switch (Tail)
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Light control switch tail position signal
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OFF or ON
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OFF: Light control switch in neither tail nor head position
ON: Light control switch in tail or head position
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-
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Head Light Switch (Head)
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Light control switch head position signal
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OFF or ON
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OFF: Light control switch not in head position
ON: Light control switch in head position
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-
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High Beam Main Switch
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Dimmer switch high position signal
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OFF or ON
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OFF: Dimmer switch not in high position
ON: Dimmer switch in high position
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-
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Passing Light Switch
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Dimmer switch high flash position (pass) signal
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OFF or ON
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OFF: Dimmer switch not in high flash position
ON: Dimmer switch in high flash position
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-
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Front Fog Light Switch
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Front fog light switch signal
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OFF or ON
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OFF: Front fog light switch off
ON: Front fog light switch on
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w/ Front Fog Light
|
-
*1: w/ DRL OFF Switch
-
*2: w/ OFF Switch
-
*3: w/ Automatic Light Control
-
*4: w/o Automatic Light Control
Chassis > Steering Angle Sensor > Data List
Tester Display
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Light OFF Switch
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Auto Light Switch
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Head Light Switch (Tail)
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Head Light Switch (Head)
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High Beam Main Switch
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Passing Light Switch
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Front Fog Light Switch
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OK:
Normal conditions listed above are displayed.
OK
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|
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(a) Read the Data List according to the display on the GTS.
Body Electrical > Main Body > Data List
Tester Display
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Measurement Item
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Normal Condition
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Reference Value
|
Diagnostic Note
|
Light Control Switch (HEAD)
|
Light control switch head position signal
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OFF or ON
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OFF: Light control switch not in head position
ON: Light control switch in head position
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-
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Body Electrical > Main Body > Data List
Tester Display
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Light Control Switch (HEAD)
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OK:
Normal conditions listed above are displayed.
NG
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|
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3.
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INSPECT STEERING SENSOR
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*a
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Component without harness connected
(Steering Sensor)
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-
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-
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(a) Remove the steering sensor.
Click here
(b) Measure the resistance according to the value(s) in the table below. (for M20A-FKS, for 2ZR-FXE)
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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I211-7 (HEAD) - z17-4 (H)
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Always
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Below 1 Ω
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(c) Measure the resistance according to the value(s) in the table below. (for G16E-GTS)
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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I46-7 (HEAD) - z17-4 (H)
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Always
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Below 1 Ω
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OK
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|
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4.
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CHECK HARNESS AND CONNECTOR (STEERING SENSOR - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
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(a) Disconnect the I85 main body ECU (multiplex network body ECU) connector.
(b) Measure the resistance according to the value(s) in the table below. (for G16E-GTS)
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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I46-7 (HEAD) - I85-26 (HEAD)
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Always
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Below 1 Ω
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I46-7 (HEAD) or I85-26 (HEAD) - Body ground
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Always
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10 kΩ or higher
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(c) Measure the resistance according to the value(s) in the table below. (for M20A-FKS, for 2ZR-FXE)
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
I211-7 (HEAD) - I85-26 (HEAD)
|
Always
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Below 1 Ω
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I211-7 (HEAD) or I85-26 (HEAD) - Body ground
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Always
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10 kΩ or higher
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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5.
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INSPECT TURN SIGNAL SWITCH
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Click here
OK
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6.
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INSPECT STEERING WHEEL SWITCH HOUSING
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Click here
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