Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001AUMA |
Model Year Start: 2019 |
Model: GR Corolla |
Prod Date Range: [06/2018 - 09/2022] |
Title: LIGHTING (EXT): LIGHTING SYSTEM (for Gasoline Model with AFS): Automatic High Beam Switch Indicator does not Come ON; 2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022] |
Automatic High Beam Switch Indicator does not Come ON
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DESCRIPTION
When the automatic high beam system is on, the main body ECU (multiplex network body ECU) illuminates the auto high beam switch indicator.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
PROCEDURE
1.
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PERFORM ACTIVE TEST USING TECHSTREAM
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(a) Connect the Techstream to the DLC3.
(b) Turn the engine switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Active Test.
(e) Perform the Active Test according to the display on the Techstream.
Body Electrical > Main Body > Active Test
Tester Display
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Measurement Item
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Control Range
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Diagnostic Note
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Automatic High Beam Switch Light
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Auto high beam switch indicator light
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OFF or ON
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-
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Body Electrical > Main Body > Active Test
Tester Display
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Automatic High Beam Switch Light
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OK:
Auto high beam switch indicator light illuminates.
NG
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|
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2.
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INSPECT AUTO HIGH BEAM SWITCH
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(a) Remove the auto high beam switch.
Click here
(b) Inspect the auto high beam switch.
Click here
OK
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3.
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CHECK HARNESS AND CONNECTOR (POWER SOURCE - AUTO HIGH BEAM SWITCH)
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(a) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
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Condition
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Specified Condition
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I52-3 (IND+) - Body ground
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Always
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11 to 14 V
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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OK
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4.
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CHECK HARNESS AND CONNECTOR (AUTO HIGH BEAM SWITCH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
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(a) Disconnect the I84 main body ECU (multiplex network body ECU) connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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I52-4 (AZBI) - I84-21 (AHID)
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Always
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Below 1 Ω
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I52-4 (AZBI) or I84-21 (AHID) - 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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