DESCRIPTION
The main body ECU (multiplex network body ECU) detects the mirror adjust switch status and sends the signal to each outer mirror control ECU assembly via CAN communication. Based on this signal, each outer mirror control ECU assembly operates the vertical and horizontal mirror motors to adjust the mirror surface position.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
Note
If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.
PROCEDURE
CHECK CAN COMMUNICATION SYSTEM
Use the GTS to check if the CAN communication system is functioning normally Click here.
| OK |
|---|
| CAN communication DTCs are not output. |
| NG |
|
GO TO CAN COMMUNICATION SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) Click here |
| OK |
|
READ VALUE USING GTS (OUTER MIRROR SWITCH ASSEMBLY)
Connect the GTS to the DLC3.
Turn the power 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 |
|---|---|---|---|
| Mirror Selection SW (R) | Mirror select switch signal for RH mirror / ON or OFF | ON: Mirror select switch in R position OFF: Mirror select switch off or in L position |
- |
| Mirror Selection SW (L) | Mirror select switch signal for LH mirror / ON or OFF | ON: Mirror select switch in L position OFF: Mirror select switch off or in R position |
- |
| Mirror Position SW (R) | Mirror adjust switch signal (Right) / ON or OFF | ON: Mirror adjust switch pressed right OFF: Mirror adjust switch not pressed right |
Check with the mirror select switch in any position except neutral |
| Mirror Position SW (L) | Mirror adjust switch signal (Left) / ON or OFF | ON: Mirror adjust switch pressed left OFF: Mirror adjust switch not pressed left |
Check with the mirror select switch in any position except neutral |
| Mirror Position SW (Up) | Mirror adjust switch signal (Up) / ON or OFF | ON: Mirror adjust switch pressed up OFF: Mirror adjust switch not pressed up |
Check with the mirror select switch in any position except neutral |
| Mirror Position SW (Dwn) | Mirror adjust switch signal (Down) / ON or OFF | ON: Mirror adjust switch pressed down OFF: Mirror adjust switch not pressed down |
Check with the mirror select switch in any position except neutral |
| OK |
|---|
| On the GTS screen, ON or OFF is displayed for each item according to the table above. |
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here |
| NG |
|
INSPECT OUTER MIRROR SWITCH ASSEMBLY
Remove the outer mirror switch assembly Click here.
Inspect the outer mirror switch assembly Click here.
| NG |
|
REPLACE OUTER MIRROR SWITCH ASSEMBLY Click here |
| OK |
|
CHECK HARNESS AND CONNECTOR (OUTER MIRROR SWITCH - MAIN BODY ECU)
Disconnect the H81 outer mirror switch assembly connector.
Disconnect the H9 main body ECU (multiplex network body ECU) connector.
Measure the resistance according to the value(s) in the table below.
| Standard Resistance | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
| OK |
|
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |