DESCRIPTION
The main body ECU (multiplex network body ECU) controls the outside handle foot lights.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
Note
Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.
PROCEDURE
PERFORM ACTIVE TEST USING GTS
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Main Body / Active Test.
Perform the Active Test according to the display on the GTS.
| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Exterior Light | Outside handle foot lights | ON/OFF | - |
| Tester Display |
|---|
| Exterior Light |
| OK |
|---|
| Outside handle foot lights illuminate. |
| Result | |||
|---|---|---|---|
|
| OK |
|
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here |
| NG |
|
CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH POWER SOURCE CIRCUIT
Disconnect the R9 front door outside handle assembly RH connector.
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
*: Refer to System Description for the illumination conditions of the outside handle foot lights.
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH POWER SOURCE CIRCUIT Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH - BODY GROUND)
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | ||||||
|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
| OK |
|
INSPECT FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH
Remove the front door outside handle assembly RH.
Inspect the front door outside handle assembly RH.
| OK |
|---|
| Outside handle foot light illuminates. |
| Result | |||
|---|---|---|---|
|
| OK |
|
USE SIMULATION METHOD TO CHECK Click here |
| NG |
|
REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH Click here |
CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH POWER SOURCE CIRCUIT
Disconnect the S9 front door outside handle assembly LH connector.
Measure the voltage according to the value(s) in the table below.
| Standard Voltage | ||||||
|---|---|---|---|---|---|---|
|
*: Refer to System Description for the illumination conditions of the outside handle foot lights.
| Result | |||
|---|---|---|---|
|
| NG |
|
CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Click here |
| OK |
|
INSPECT FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH
Remove the front door outside handle assembly LH.
Inspect the front door outside handle assembly LH.
| OK |
|---|
| Outside handle foot light illuminates. |
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY RH - FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH)
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
END |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
CHECK HARNESS AND CONNECTOR (FRONT DOOR OUTSIDE HANDLE ASSEMBLY LH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))
Disconnect the O1 main body ECU (multiplex network body ECU) connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||
|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |