| Last Modified: 07-31-2024 | 6.11:8.1.0 | Doc ID: RM100000001GXK3 |
| Model Year Start: 2020 | Model: Corolla | Prod Date Range: [01/2019 - 09/2022] |
| Title: LIGHTING (INT): LIGHTING SYSTEM (for HV Model): Luggage Compartment Door Courtesy Switch Circuit; 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022] | ||
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Luggage Compartment Door Courtesy Switch Circuit |
DESCRIPTION
The main body ECU (multiplex network body ECU) detects the condition of the luggage compartment door courtesy light switch (luggage compartment door lock assembly).
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
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![2020 MY Corolla Corolla HV [01/2019 - 04/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM |
(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 |
Measurement Item |
Range |
Normal Condition |
Diagnostic Note |
|---|---|---|---|---|
|
Luggage Courtesy SW |
Luggage compartment door courtesy switch signal |
OFF or ON |
OFF: Luggage compartment door closed ON: Luggage compartment door open |
- |
Body Electrical > Main Body > Data List
|
Tester Display |
|---|
|
Luggage Courtesy SW |
OK:
Normal conditions listed above are displayed.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
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|
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2. |
INSPECT LUGGAGE COMPARTMENT DOOR COURTESY LIGHT SWITCH (LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY) |
(a) Remove the luggage compartment door courtesy light switch (luggage compartment door lock assembly).
Click here
(b) Inspect the luggage compartment door courtesy light switch (luggage compartment door lock assembly).
Click here
| NG |
|
REPLACE LUGGAGE COMPARTMENT DOOR COURTESY LIGHT SWITCH (LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY)
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|
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3. |
CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR COURTESY LIGHT SWITCH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND BODY GROUND) |
(a) Disconnect the 4A instrument panel junction block assembly connector.
(b) Measure the resistance according to the value (s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
O108-3 (D+) - 4A-34 |
Always |
Below 1 Ω |
|
O108-3 (D+) or 4A-34 - Body ground |
Always |
10 kΩ or higher |
|
O108-2 (ACT-) - Body ground |
Always |
Below 1 Ω |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY |
|
*a |
Component without harness connected (Instrument Panel Junction Block Assembly) |
- |
- |
(a) Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly.
Click here
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
4A-34 - MB-4 (LGCY) |
Always |
Below 1 Ω |
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| NG |
|
REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY
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