Inspection Procedure

CHECK LIN COMMUNICATION SYSTEM
1. Check for LIN communication system DTCs related to the power window control system (See DTC CHECK/CLEAR ).
  OK: LIN communication system DTCs are not output.
NG: GO TO LIN COMMUNICATION SYSTEM (See DIAGNOSTIC TROUBLE CODE CHART )

OK: Go to next step
CHECK DTC (B2312)
1. Check if DTC B2312 is output (See DTC CHECK / CLEAR ).
  OK: DTC B2312 is not output.
NG: GO TO DTC (B2312) (See DTC B2312 POWER WINDOW SWITCH MALFUNCTION )

OK: Go to next step

READ VALUE USING TECHSTREAM (D-DOOR MOTOR)

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Enter the following menus: Body Electrical / D-Door Motor / Data List.

According to the display on the Techstream, read the Data List.

D-Door Motor

D-DOOR MOTOR REFERENCE CHART

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
D Door P/W Up SW	Driver side power window MANUAL UP switch signal / ON or OFF	ON: Driver side power window manual UP switch operated OFF: Driver side power window switch not operated	-
D Door P/W Down SW	Driver side power window MANUAL DOWN switch signal / ON or OFF	ON: Driver side power window manual DOWN switch operated OFF: OFF: Driver side power window switch not operated	-

OK: The Techstream display changes normally when master switch is operated.

NG: Go to step 4

OK: REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (See REMOVAL )

CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH - BATTERY, BODY GROUND)

Disconnect the M2 power window regulator master switch assembly connector.

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

Standard Voltage

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Switch Condition	Specified Condition
M2-3 (B) - Body ground	Always	11 to 14 V
M2-13 (B) - Body ground	Ignition switch ON	11 to 14 V

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
M2-1 (GND) - Body ground	Always	Below 1 Ω

Reconnect the power window regulator master switch assembly connector.

Fig 1: Identifying M2 Power Window Regulator Master Switch Assembly Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

CHECK HARNESS AND CONNECTOR (FRONT POWER WINDOW REGULATOR MOTOR LH - BATTERY, BODY GROUND)

Disconnect the M3 front power window regulator motor assembly LH connector.

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

Standard Voltage

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
M3-2 (B) - Body ground	Always	11 to 14 V

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
M3-1 (GND) - Body ground	Always	Below 1 Ω

Reconnect the front power window regulator motor assembly LH connector.

Fig 2: Identifying M3 Front Power Window Regulator Motor Assembly LH Connector Terminals
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

CHECK HARNESS AND CONNECTOR (POWER WINDOW MASTER SWITCH - FRONT POWER WINDOW MOTOR LH)

Disconnect the M2 power window regulator master switch assembly connector.
Disconnect the M3 front power window regulator motor assembly LH connector.

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

Standard Resistance

TESTER CONNECTION SPECIFIED CONDITION CHART

Tester Connection	Condition	Specified Condition
M2-4 (UP) - M3-10 (UP)	Always	Below 1 Ω
M2-5 (DOWN) - M3-7 (DOWN)	Always	Below 1 Ω
M2-4 (UP) - Body ground	Always	10 kΩ or higher
M2-5 (DOWN) - Body ground	Always	10 kΩ or higher

Reconnect the front power window regulator motor assembly LH connector.
Reconnect the power window regulator master switch assembly connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

Fig 3: Identifying Power Window Regulator Master Switch Connector Terminals

OK: Go to next step

INSPECT FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH

Remove the front power window regulator motor assembly LH (See REMOVAL ).
Apply positive (+) battery voltage to the connector terminal 2 (B).
NOTE:
- Do not apply positive (+) battery voltage to any terminals except terminal 2 (B), to avoid damaging the pulse sensor inside the motor.
- Reset the power window regulator motor (initialize the pulse sensor) after installing the power window regulator motor and regulator assembly onto the door.
Apply negative (-) battery voltage to the connector terminals 1 (GND) and 7 (DOWN)/ 10 (UP).

Check that the motor gear rotates smoothly as follows.

Fig 4: Inspecting Front Power Window Regulator Motor Assembly LH

MEASUREMENT AND SPECIFIED CONDITION REFERENCE CHART

Measurement Condition	Specified Condition
Battery positive (+) → 2 (B) Battery negative (-) → (-): 1 (GND) (3 sec. or more) → 1 (GND) and 10 (UP) (within 1 sec.) → 1 (GND) (within 1 sec.) → 1 (GND) and 10 (UP)	Motor gear rotates clockwise
Battery positive (+) → 2 (B) Battery negative (-): 1 (GND) (3 sec. or more) → 1 (GND) and 7 (DOWN) (within 1 sec.) → 1 (GND) (within 1 sec.) → 1 (GND) and 7 (DOWN)	Motor gear rotates counterclockwise

Reinstall the front power window regulator motor assembly LH.

NG: REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (See REMOVAL )

OK: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (See REMOVAL )