Toyota Corolla Cross: Rear Power Window LH does not Operate with Rear Power Window Switch LH

DESCRIPTION

When the ignition switch is ON, the power window regulator motor assembly (for rear LH door) is operated by the rear power window regulator switch assembly (for rear LH door). The power window regulator motor assembly (for rear LH door) has motor, regulator, and ECU functions.

WIRING DIAGRAM

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CAUTION / NOTICE / HINT

NOTICE:

• Inspect the fuses for circuits related to this system before performing the following procedure.
• If the power window regulator motor assembly (for rear LH door) has been replaced with a new one, initialize the power window control system.

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• The power window control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power window control system after confirming that the communication system is functioning properly.

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• Check that the window lock switch is off before performing the following procedure.
• Before replacing the main body ECU (multiplex network body ECU), refer to Registration.*1
  • for HEV Model:

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  • for Gasoline Model:

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  • *1: w/ Smart Key System

PROCEDURE

1.	READ VALUE USING GTS

(a) Read the Data List according to the display on the GTS.

Body Electrical > Main Body > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Communication RL-Door Motor	Connection status between power window regulator motor assembly (for rear LH door) and main body ECU (multiplex network body ECU)	STOP or OK	STOP: Communication stopped OK: Normal communication	-

Body Electrical > Main Body > Data List

Tester Display
Communication RL-Door Motor

OK:

OK is displayed for each Data List item above.

NG

GO TO LIN COMMUNICATION SYSTEM (Proceed to How to Proceed with Troubleshooting)

OK

2.	READ VALUE USING GTS

(a) Read the Data List according to the display on the GTS.

Body Electrical > Main Body > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
RL Door Power Window UP Switch	Rear LH door power window manual up switch	OFF or ON	OFF: Manual up switch not being operated ON: Manual up switch being operated	-
RL Door Power Window DOWN Switch	Rear LH door power window manual down switch	OFF or ON	OFF: Manual down switch not being operated ON: Manual down switch being operated	-

Body Electrical > Main Body > Data List

Tester Display
RL Door Power Window UP Switch
RL Door Power Window DOWN Switch

OK:

On the GTS screen, ON or OFF is displayed accordingly.

NG

GO TO STEP 4

OK

3.	PERFORM ACTIVE TEST USING GTS

(a) Perform the Active Test according to the display on the GTS.

Body Electrical > Main Body > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
RL Door Power Window UP	Rear LH door power window up activate	OFF/ON	-
RL Door Power Window DOWN	Rear LH door power window down activate	OFF/ON	-

Body Electrical > Main Body > Active Test

Tester Display
RL Door Power Window UP

Body Electrical > Main Body > Active Test

Tester Display
RL Door Power Window DOWN

HINT:

Up and down movement does not occur if the arrow is not pressed and held.

OK:

Rear LH door power window operates normally.

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door)

4.	INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear LH Door)

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NG

REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY (for Rear LH Door)

OK

5.	CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY - POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door))

(a) Disconnect the N3 power window regulator motor assembly (for rear LH door) connector.

(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
N2-5 (UP) - N3-10 (UP)	Always	Below 1 Ω
N2-4 (DOWN) - N3-7 (DOWN)	Always	Below 1 Ω
N2-5 (UP) or N3-10 (UP) - Body ground	Always	10 kΩ or higher
N2-4 (DOWN) or N3-7 (DOWN) - Body ground	Always	10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

6.	INSPECT POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH door)

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OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Door)

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