Inspection Procedure

NOTE:

When the rear power window regulator motor assembly (for rear LH side) connector, the multiplex network master switch assembly connector or the multiplex network switch assembly (for rear LH side) connector is disconnected, the power window control system must be initialized (See CUSTOMIZE PARAMETERS ).
Since the power window control system has functions that use multiplex communication (BEAN), first confirm that there is no malfunction in the multiplex communication system by inspecting the multiplex communication functions in accordance with the How to Proceed with Troubleshooting procedure (See HOW TO PROCEED WITH TROUBLESHOOTING ). Then, conduct the following inspection procedure.

CHECK FUSE (RR DOOR LH)

Remove the RR DOOR LH fuse from the main body ECU LH (cowl side junction block LH)

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

Standard Resistance

STANDARD RESISTANCE

Tester Connection	Condition	Specified Condition
RR DOOR LH fuse	Always	Below 1 Ω

NG: REPLACE FUSE

OK: Go to next step

CHECK POWER WINDOW CONTROL SYSTEM (Rear LH Side Remote UP/DOWN Function)
1. Check that the rear LH side remote UP/DOWN function operates normally (See OPERATION CHECK )
  OK: Rear LH side remote UP/DOWN function operates normally.
NG: Go to step 3

OK: REPLACE MULTIPLEX NETWORK SWITCH ASSEMBLY (for Rear LH side) (See REMOVAL )

CHECK HARNESS AND CONNECTOR (SWITCH (for Rear LH Side) - BODY GROUND AND BATTERY)

Disconnect the multiplex network switch assembly (for rear LH side) connector

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

Standard Resistance

STANDARD RESISTANCE

Tester Connection	Condition	Specified Condition
O1-7 (GND) - Body ground	Always	Below 1 Ω

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

Standard Voltage

STANDARD VOLTAGE

Tester Connection	Condition	Specified Condition
O1-12 (BDR) - O1 -7 (GND)	Always	11 to 14 V

Fig 1: Identifying Multiplex Network Switch Assembly (For Rear LH Side) Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

INSPECT MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY (WINDOW LOCK SWITCH OPERATION SIGNAL)

Turn the engine switch on (IG)

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

Standard Voltage

STANDARD VOLTAGE

Tester Connection	Switch Condition	Specified Condition
M7-6 (PWS) - Body ground	Power window lock switch UNLOCK	11 to 14 V
M7-6 (PWS) - Body ground	Power window lock switch LOCK	Below 1 V

Fig 2: Identifying Multiplex Network Master Switch Assembly Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY (See REMOVAL )

OK: Go to next step

CHECK HARNESS AND CONNECTOR (MASTER SWITCH - SWITCH (for Rear LH Side))

Disconnect the multiplex network master switch assembly connector.

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

Standard Resistance

STANDARD RESISTANCE

Tester Connection	Condition	Specified Condition
M7-6 (PWS) - O1-11 (PCT1)	Always	Below 1 Ω
M7-6 (PWS) - Body ground	Always	10 kΩ or higher

Fig 3: Identifying Multiplex Network Master Switch Assembly Connector And Multiplex Network Switch Assembly (For Rear LH Side) Connector

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: Go to next step

INSPECT REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH side)

Remove the rear power window regulator motor assembly (for rear LH side) (See REMOVAL )

Check power window regulator motor operation.

Apply battery voltage to connector terminals 1 and 2
NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2.

Check that the motor gear rotates smoothly as follows.

MEASUREMENT CONDITION AND SPECIFIED CONDITION

Measurement Condition	Specified Condition
Battery positive (+) → 1 Battery negative (-) → 2	Motor gear rotates clockwise
Battery positive (+) → 2 Battery negative (-) → 1	Motor gear rotates counterclockwise

Check PTC operation.
NOTE: This check must be performed with the power window regulator and door glass installed on the vehicle.

Fig 4: Identifying Power Window Regulator Motor Operation
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Install the power window regulator motor (See INSTALLATION ).
2. Connect an electrical tester DC 400 A probe to the wire harness of terminal 1
  NOTE: Match the arrow mark of the probe with the direction of the current flow.
3. Fully close the door glass by pulling up the multiplex network switch assembly (for rear LH side). Wait for approximately 60 seconds
4. Continue to pull up the multiplex network switch assembly (for rear LH side) and measure how long it takes for the electrical current to change from a range of 16 to 28 A to approximately 1 A (current shut-off inspection)
  Standard: 4 to 90 seconds
5. Wait for 60 seconds after the previous step, and then push down the multiplex network switch assembly (for rear LH side)
  
  Fig 5: Identifying Rear Power Window Regulator Motor Assembly (For Rear LH Side) Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK: The rear LH side window goes down.

NG: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear LH Side) (See REMOVAL )

OK: Go to next step

CHECK HARNESS AND CONNECTOR (SWITCH (for Rear LH Side) - REGULATOR MOTOR)

Disconnect the front power window regulator motor assembly (for rear LH side) connector.

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

Standard Resistance

STANDARD RESISTANCE

Tester Connection	Condition	Specified Condition
O1-6 (UP) - O7-1 (U)	Always	Below 1 Ω
O1-1 (DN) - O7-2 (D)	Always	Below 1 Ω
O1-6 (UP) - Body ground	Always	10 kΩ or higher
O1-1 (DN) - Body ground	Always	10 kΩ or higher

Fig 6: Identifying Front Power Window Regulator Motor Assembly (For Rear LH Side) Connector

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR

OK: REPLACE MULTIPLEX NETWORK SWITCH ASSEMBLY (for Rear LH side) (See REMOVAL )