DESCRIPTION
When the outer mirror switch assembly mirror retract switch is operated, return/retract signals are sent to the main body ECU (multiplex network body ECU). The main body ECU (multiplex network body ECU) sends return/retract signals to the outer mirror control ECU assembly via CAN communication. The outer mirror control ECU assembly returns and retracts the outer rear view mirror assembly based on the received signals.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
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.
If the main body ECU (multiplex network body ECU) is replaced, refer to the Service Bulletin.
As the door control battery is installed between the vehicle battery and main body ECU (multiplex network body ECU), first perform the inspections in On-Vehicle Inspection to confirm that there are no malfunctions in the power source circuit for the main body ECU (multiplex network body ECU) before performing this troubleshooting procedure.
PROCEDURE
READ VALUE USING GTS (OUTER MIRROR FOLD SW)
Connect the GTS to the DLC3.
Turn the engine switch on (IG).
Turn the GTS on.
Enter the following menus: Body Electrical / Main Body / Data List.
Read the Data List according to the display on the GTS.
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Outer Mirror Fold SW | Mirror retract switch signal | OFF or ON | OFF: Mirror retract switch not in retract position ON: Mirror retract switch in retract position |
- |
| Tester Display |
|---|
| Outer Mirror Fold SW |
| OK |
|---|
| On the GTS screen, ON or OFF is displayed for each item according to the table above. |
| Result | |||
|---|---|---|---|
|
| NG |
|
INSPECT OUTER MIRROR SWITCH ASSEMBLY (MIRROR RETRACT SWITCH) Click here |
| OK |
|
CHECK MALFUNCTIONING PARTS
Check the malfunctioning parts.
| Result | ||||||||
|---|---|---|---|---|---|---|---|---|
|
| A |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here |
| C |
|
INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH (POWER RETRACT FUNCTION) Click here |
| B |
|
INSPECT OUTER REAR VIEW MIRROR ASSEMBLY LH (POWER RETRACT FUNCTION)
Remove the outer rear view mirror assembly LH.
Inspect the outer rear view mirror assembly LH.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY LH - OUTER MIRROR CONTROL ECU ASSEMBLY LH)
Disconnect the I19 outer rear view mirror assembly LH connector.
Disconnect the I30 outer mirror control ECU assembly LH connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY LH Click here |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
INSPECT OUTER REAR VIEW MIRROR ASSEMBLY RH (POWER RETRACT FUNCTION)
Remove the outer rear view mirror assembly RH.
Inspect the outer rear view mirror assembly RH.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (OUTER REAR VIEW MIRROR ASSEMBLY RH - OUTER MIRROR CONTROL ECU ASSEMBLY RH)
Disconnect the I3 outer rear view mirror assembly RH connector.
Disconnect the I15 outer mirror control ECU assembly RH connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| Result | |||
|---|---|---|---|
|
| OK |
|
REPLACE OUTER MIRROR CONTROL ECU ASSEMBLY RH Click here |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
INSPECT OUTER MIRROR SWITCH ASSEMBLY (MIRROR RETRACT SWITCH)
Remove the outer mirror switch assembly.
Inspect the outer mirror switch assembly.
| Result | |||
|---|---|---|---|
|
| NG |
|
REPLACE OUTER MIRROR SWITCH ASSEMBLY Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH ASSEMBLY - MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU])
Disconnect the I27*1 or I11*2 outer mirror switch assembly connector.
*1: for LHD
*2: for RHD
Disconnect the G62 and G64 main body ECU (multiplex network body ECU) connectors.
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 |