| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001AW9A |
| Model Year Start: 2019 | Model: Avalon | Prod Date Range: [04/2018 - ] |
| Title: LIGHTING (INT): LIGHTING SYSTEM (for Gasoline Model): Front Door Courtesy Switch Circuit; 2019 - 2022 MY Avalon [04/2018 - ] | ||
|
Front Door Courtesy Switch Circuit |
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
![2019 - 2020 MY Avalon [04/2018 - 08/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION](/t3Portal/stylegraphics/info.gif)
PROCEDURE
|
1. |
READ VALUE USING TECHSTREAM |
(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 / 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 |
|---|---|---|---|---|
|
FR Door Courtesy SW |
Front door courtesy light switch assembly (for RH) signal |
OFF or ON |
OFF: Front door RH closed ON: Front door RH open |
- |
|
FL Door Courtesy SW |
Front door courtesy light switch assembly (for LH) signal |
OFF or ON |
OFF: Front door LH closed ON: Front door LH open |
- |
Body Electrical > Main Body > Data List
|
Tester Display |
|---|
|
FR Door Courtesy SW |
|
FL Door Courtesy SW |
OK:
Normal conditions listed above are displayed.
|
Result |
Proceed to |
|---|---|
|
OK |
A |
|
NG ("FR Door Courtesy SW" is not normal) |
B |
|
NG ("FL Door Courtesy SW" is not normal) |
C |
| A |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| C |
|
|
|
2. |
INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (for RH) |
(a) Remove the front door courtesy light switch assembly (for RH).
Click here
(b) Inspect the front door courtesy light switch assembly (for RH).
Click here
| NG |
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (for RH) - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(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 |
Condition |
Specified Condition |
|---|---|---|
|
K6-1 - G33-6 (FRCY) |
Always |
Below 1 Ω |
|
K6-1 or G33-6 (FRCY) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (for LH) |
(a) Remove the front door courtesy light switch assembly (for LH).
Click here
(b) Inspect the front door courtesy light switch assembly (for LH).
Click here
| NG |
|
|
|
5. |
CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY (for LH) - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) |
(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 |
Condition |
Specified Condition |
|---|---|---|
|
K7-1 - G33-1 (FLCY) |
Always |
Below 1 Ω |
|
K7-1 or G33-1 (FLCY) - Body ground |
Always |
10 kΩ or higher |
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|