Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001GXJT |
Model Year Start: 2020 |
Model: Corolla |
Prod Date Range: [01/2019 - 09/2022] |
Title: LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Front Door Courtesy Switch Circuit; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] |
Front Door Courtesy Switch Circuit
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DESCRIPTION
The main body ECU (multiplex network body ECU) detects the condition of the front door courtesy light switch assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
Click here
PROCEDURE
1.
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READ VALUE USING TECHSTREAM
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(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) Read the Data List according to the display on the Techstream.
Body Electrical > Main Body > Data List
Tester Display
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Measurement Item
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Range
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Normal Condition
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Diagnostic Note
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FR Door Courtesy SW
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Front door courtesy light switch assembly RH signal
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OFF or ON
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OFF: Front door RH closed
ON: Front door RH open
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-
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FL Door Courtesy SW
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Front door courtesy light switch assembly LH signal
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OFF or ON
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OFF: Front door LH closed
ON: Front door LH open
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-
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Body Electrical > Main Body > Data List
Tester Display
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FR Door Courtesy SW
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FL Door Courtesy SW
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OK:
Normal conditions listed above are displayed.
Result
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Proceed to
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OK
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A
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NG ("FL Door Courtesy SW" is not normal)
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B
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NG ("FR Door Courtesy SW" is not normal)
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C
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B
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2.
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INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH
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(a) Remove the front door courtesy light switch assembly LH.
Click here
(b) Inspect the front door courtesy light switch assembly LH.
Click here
OK
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3.
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CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH - 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.
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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O30-1 - I85-1 (FLCY)
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Always
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Below 1 Ω
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O30-1 or I85-1 (FLCY) - 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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4.
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INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH
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(a) Remove the front door courtesy light switch assembly RH.
Click here
(b) Inspect the front door courtesy light switch assembly RH.
Click here
OK
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5.
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CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY RH - 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.
Standard Resistance:
Tester Connection
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Condition
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Specified Condition
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O32-1 - I85-6 (FRCY)
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Always
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Below 1 Ω
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O32-1 or I85-6 (FRCY) - 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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