| Last Modified: 06-05-2026 | 6.11:8.1.0 | Doc ID: RM1000000028DBJ |
| Model Year Start: 2023 | Model: GR Corolla | Prod Date Range: [11/2022 - ] |
| Title: LIGHTING (INT): LIGHTING SYSTEM: Luggage Compartment Door Courtesy Switch Circuit; 2023 - 2026 MY GR Corolla Corolla Corolla Hatchback Corolla HV [11/2022 - ] | ||
|
Luggage Compartment Door Courtesy Switch Circuit |
DESCRIPTION
The main body ECU (multiplex network body ECU) detects the condition of the luggage compartment door lock assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*
for Gasoline Model: Click here
![2023 - 2026 MY GR Corolla Corolla Corolla Hatchback [11/2022 - ]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION](/t3Portal/stylegraphics/info.gif)
for HV Model: Click here
- *: w/ Smart Key System
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM |
(a) 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 Switch Status |
Luggage compartment door courtesy switch signal |
Close or Open |
Close: Luggage compartment door closed Open: Luggage compartment door open |
- |
Body Electrical > Main Body > Data List
OK:
Normal conditions listed above are displayed.
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE
Click here
|
|
|
2. |
INSPECT LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY |
(a) Inspect the luggage compartment door lock assembly.
Click here
| NG |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (LUGGAGE COMPARTMENT DOOR LOCK ASSEMBLY - POWER DISTRIBUTION BOX ASSEMBLY AND BODY GROUND) |
(a) Disconnect the 8H power distribution box 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+) - 8H-5 |
Always |
Below 1 Ω |
|
O108-3 (D+) or 8H-5 - 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 POWER DISTRIBUTION BOX ASSEMBLY |
(a) Remove the main body ECU (multiplex network body ECU) from the power distribution box assembly.
Click here
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
8H-5 - MB-19 (LGCY) |
Always |
Below 1 Ω |
|
|
|
|