SYSTEM DESCRIPTION
for LHD:
When the mirror retract switch of the multiplex network master switch assembly is operated, deploy/retract signals are sent via LIN communication to the main body ECU (multiplex network body ECU) through the front multiplex network door ECU LH. The main body ECU (multiplex network body ECU) then sends deploy/retract signals to the front multiplex door ECU LH and front multiplex door ECU RH via CAN communication. The front multiplex door ECU LH and front multiplex door ECU RH deploy and retract the mirrors based on the received signals.
for RHD:
When the mirror retract switch of the multiplex network master switch assembly is operated, deploy/retract signals are sent via LIN communication to the main body ECU (multiplex network body ECU) through the front multiplex network door ECU RH. The main body ECU (multiplex network body ECU) then sends deploy/retract signals to the front multiplex door ECU LH and front multiplex door ECU RH via CAN communication. The front multiplex door ECU LH and front multiplex door ECU RH deploy and retract the mirrors based on the received signals.
WIRING DIAGRAM
INSPECTION PROCEDURE
Note
First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no CAN communication malfunctions before troubleshooting this problem.
First perform the communication function inspections in How to Proceed with Troubleshooting to confirm that there are no LIN communication malfunctions before troubleshooting this problem.
Recognition code registration is necessary when replacing the main body ECU (multiplex network body ECU).
If the main body ECU (multiplex network body ECU) is replaced, refer to the Service Bulletin.
PROCEDURE
READ VALUE USING GTS (RETRACTABLE OUTER MIRROR SWITCH)
Using the GTS, read the Data List Click here.
| Tester Display | Measurement Item/Range | Normal Condition | Diagnostic Note |
|---|---|---|---|
| Outer Mirror Fold SW | Retractable outer mirror switch signal / ON or OFF | ON: Retractable outer mirror switch in retract position OFF: Retractable outer mirror switch not in retract position |
- |
| OK |
|---|
| The display is as specified in the normal condition column. |
| NG |
|
CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY Click here |
| OK |
|
CONFIRM MALFUNCTIONING PARTS
Check the malfunctioning outer rear view mirror.
| Result | Proceed to |
|---|---|
| Both the left and right outer rear view mirror do not operate | A |
| Outer rear view mirror RH does not operate | B |
| Outer rear view mirror LH does not operate | C |
| B |
|
INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH (POWER RETRACT FUNCTION) Click here |
| C |
|
INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH (POWER RETRACT FUNCTION) Click here |
| A |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here
INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH (POWER RETRACT FUNCTION)
Remove the outer rear view mirror assembly RH Click here.
Inspect the outer rear view mirror assembly RH Click here.
| NG |
|
REPLACE OUTER MIRROR ACTUATOR ASSEMBLY RH Click here |
| OK |
|
REPLACE FRONT MULTIPLEX NETWORK DOOR ECU RH Click here
INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH (POWER RETRACT FUNCTION)
Remove the outer rear view mirror assembly RH Click here.
Inspect the outer rear view mirror assembly RH Click here.
| NG |
|
REPLACE OUTER MIRROR ACTUATOR ASSEMBLY LH Click here |
| OK |
|
REPLACE FRONT MULTIPLEX NETWORK DOOR ECU LH Click here
CHECK MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY
Temporarily replace multiplex network master switch assembly with a new or normally functioning one Click here.
Check that the mirror operates.
| OK |
|---|
| Mirror operates normally. |
| NG |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here |
| OK |
|
END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY IS DEFECTIVE)