Last Modified: 08-21-2023 |
6.11:8.1.0 |
Doc ID: RM100000001B7KL |
Model Year Start: 2019 |
Model: Avalon HV |
Prod Date Range: [04/2018 -
] |
Title: LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Ambient Light Switch Circuit; 2019 - 2022 MY Avalon HV [04/2018 - ] |
Ambient Light Switch Circuit
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DESCRIPTION
The main body ECU (multiplex network body ECU) detects the condition of the mood switch on the roof console box sub-assembly using this circuit.
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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Ceiling Light SW
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Mood switch signal
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OFF or ON
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OFF: Mood switch not pressed
ON: Mood switch pressed
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-
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Body Electrical > Main Body > Data List
Tester Display
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Ceiling Light SW
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OK:
Normal conditions listed above are displayed.
NG
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2.
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INSPECT MOOD SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY)
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(a) Remove the mood switch (roof console box sub-assembly).
Click here
(b) Inspect the mood switch (roof console box sub-assembly).
Click here
OK
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3.
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CHECK HARNESS AND CONNECTOR (MOOD SWITCH (ROOF CONSOLE BOX SUB-ASSEMBLY) - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)
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(a) Disconnect the G33 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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O10-27 (+B2) - G33-14 (ILSW)
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Always
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Below 1 Ω
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O10-27 (+B2) or G33-14 (ILSW) - Body ground
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Always
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10 kΩ or higher
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O10-15 (GND) - Body ground
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Always
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Below 1 Ω
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NG |
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REPAIR OR REPLACE HARNESS OR CONNECTOR
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