DESCRIPTION
CAUTION / NOTICE / HINT
NOTICE:
The power window control system uses a multiplex communication system (LIN communication
system). Inspect the communication function by following How to Proceed with Troubleshooting
(See page ). Troubleshoot the power window control
system after confirming that the communication system is functioning properly.
PROCEDURE
1. |
READ VALUE USING TECHSTREAM (Main Body) |
(a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON.
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body / Data List.
(e) Read the Data List according to the display on the Techstream.
Main Body (Main Body ECU (Driver Side Junction Block Assembly))
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
Communication D-Door Motor |
Connection status between power window regulator motor (for driver side) and main body ECU (driver side junction block assembly) / OK or STOP |
OK: Normal communication STOP: Communication stopped |
- |
OK:
On the Techstream screen, OK is displayed.
NG | ![]() |
GO TO LIN COMMUNICATION SYSTEM (Proceed to How to Proceed with Troubleshooting) |
|
2. |
CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF |
(a) Check the power window operation function after the ignition switch is turned off.
Result |
Proceed to |
---|---|
When power window can still be operated even after opening driver door or front passenger door within approximately 45 seconds of ignition switch being turned off |
A |
When power window can still be operated even after approximately 45 seconds have elapsed after ignition switch is turned off (for Front Passenger Side, Rear LH Side or Rear RH Side)) |
B |
When power window can still be operated even after approximately 45 seconds have elapsed after ignition switch is turned off (for All Doors) |
C |
B | ![]() |
GO TO STEP 4 |
C | ![]() |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
|
3. |
READ VALUE USING TECHSTREAM (Main Body) |
(a) Enter the following menus: Body Electrical / Main Body / Data List.
(b) Read the Data List according to the display on the Techstream.
Main Body (Main Body ECU (Driver Side Junction Block Assembly))
Tester Display |
Measurement Item/Range |
Normal Condition |
Diagnostic Note |
---|---|---|---|
D Door Courtesy SW |
Driver side door courtesy switch signal / ON or OFF |
ON: Driver side door open OFF: Driver side door closed |
- |
P Door Courtesy SW |
Front passenger side door courtesy switch signal / ON or OFF |
ON: Front passenger side door open OFF: Front passenger side door closed |
- |
OK:
On the Techstream screen, ON or OFF is displayed accordingly.
OK | ![]() |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
NG | ![]() |
GO TO LIGHTING SYSTEM (Proceed to Door Courtesy Light Switch Circuit) |
4. |
REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (KEY-OFF OPERATION FUNCTIONING WINDOW) |
(a) Replace the power window regulator motor assembly (See page
for Front Door,
for Rear Door) for the window that still operates
when more than 45 seconds have elapsed after the ignition switch was turned off.
|
5. |
PERFORM INITIALIZATION (APPLICABLE LOCATION) |
(a) Initialize the power window regulator motor assembly (See page
).
|
6. |
CHECK OPERATION FUNCTION AFTER IGNITION SWITCH IS TURNED OFF |
(a) Check the power window operation function after the ignition switch is turned off.
OK:
The power window does not operate when more than 45 seconds have elapsed after the ignition switch was turned off.
OK | ![]() |
END (POWER WINDOW REGULATOR MOTOR ASSEMBLY WAS DEFECTIVE) |
NG | ![]() |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK ASSEMBLY) |
Power Source Mode does not Change to ON (IG)
DESCRIPTION
When the engine switch is pushed with the electrical key in the cabin, the power
management control ECU receives signals to change the power source mode.
HINT:
To allow use of the Techstream to inspect the push-button start function when
the ...
Back Door Entry Unlock Function does not Operate
DESCRIPTION
If the entry back door open function does not operate but the back door entry
lock function operates, the communication between the vehicle and key is normal.
As a faulty part, the back door open switch circuit (from the back door opener switc ...
Vehicle Speed Signal Error (Test Mode DTC) (C2191/91)
DESCRIPTION
The tire pressure warning ECU receives a vehicle speed signal from the combination
meter. This DTC is stored upon entering signal check mode (test mode), and cleared
when a vehicle speed signal of 20 km/h (12 mph) is detected for 3 seconds or ...