DESCRIPTION
PROCEDURE
1. |
CHECK LIN COMMUNICATION SYSTEM |
(a) Check for LIN communication system DTCs related to the power window control system (See page ).
OK:
LIN communication system DTCs are not output.
NG |
GO TO LIN COMMUNICATION SYSTEM |
|
2. |
CHECK POWER WINDOW OPERATION FUNCTION AFTER IGNITION SWITCH OFF |
(a) Check the power window operation function after the ignition switch is turned off (See page ).
Result |
Proceed to |
---|---|
Front side door is opened within 43 sec. but power windows can still operate |
A |
43 sec. pass and power windows can still operate |
B |
B |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
3. |
READ VALUE USING TECHSTREAM (FRONT DOOR COURTESY LIGHT SWITCH) |
(a) Use the Data List to check if the main body ECU (multiplex network body ECU) is functioning properly (See page ).
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
FL Door Courtesy SW |
Front door courtesy light switch LH signal / ON or OFF |
ON: Front door LH closed OFF: Front door LH open |
- |
FR Door Courtesy SW |
Front door courtesy light switch RH signal / ON or OFF |
ON: Front door RH closed OFF: Front door RH open |
- |
OK:
On tester screen, each item changes between ON and OFF according to above chart.
OK |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
|
4. |
CHECK FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY |
(a) Open a front door and check that the map light illuminates (See page ).
OK:
Map light illuminates.
NG |
REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY |
|
5. |
CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY |
(a) Temporarily replace the driver side junction block with a new or normally functioning one.
(b) Check that the key-off operation function operates normally.
OK |
END (DRIVER SIDE JUNCTION BLOCK ASSEMBLY IS DEFECTIVE) |
NG |
REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) |
Inspection
INSPECTION
PROCEDURE
1. INSPECT STEERING PAD SWITCH ASSEMBLY
(a) Inspect the steering pad switch assembly.
(1) Disconnect the switch connector.
Text in Illustration
*1
Up Switch
*2
Down Switch
...
Screen Flicker or Color Distortion
PROCEDURE
1.
CHECK DISPLAY SETTING
(a) Reset display settings (contrast, brightness) and check that the screen appears
normal.
OK:
The display returns to normal.
OK
END
NG
...