Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.

CHECK REAR WIPER OPERATION
1. Turn the ignition switch ON.
2. Operate the rear wiper and turn the rear wiper switch OFF.
3. Check that the rear wiper stops at the retract position when the rear wiper switch is turned OFF.
Fig 1: Checking Rear Wiper Operation
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: CHECK REAR WIPER MOTOR ASSY

OK: Go To Next Step
INSPECT BACK DOOR POWER WINDOW REGULATOR SWITCH ASSY
1. Using the hand-held tester, read the DTC when the back power window switch is operated.
  1. When DTC B1287 is output, proceed to A.
  2. When no DTC is output, proceed to B.
  3. When DTC B1241 is output, proceed to C.
A: INSPECT MULTIPLEX COMMUNICATION SYSTEM (See DTC B1287: BACK DOOR ECU COMMUNICATION STOP )

B: INSPECT BACK DOOR POWER WINDOW REGULATOR SWITCH ASSY (See DTC B1241 BODY ECU SWITCH CIRCUIT DIAGNOSIS )

C: Go to next step

READ VALUE OF HAND-HELD TESTER

Check the condition of the retract switch using the data list.

Standard:

BACK DOOR ECU DATA LIST

Measurement Item	Label	Parameter
Wiper retract switch	WIPER RTRCT SW	ON

NG: Go to step 6

OK: Go To Next Step

CHECK WIRE HARNESS (BACK DOOR ECU <=> POWER WINDOW MOTOR) (BACK DOOR ECU <=> BODY GROUND)

Disconnect the B9 ECU connector.
Disconnect the B11 motor connector.

Check the continuity between the wire harness side connectors.

Fig 2: Identifying Back Door ECU And Power Window Motor Connector Terminals

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

STANDARD

Terminal No.	Specified Condition
B9-25 <=> B11-5	Continuity
B9-13 <=> B11-4	Continuity

Check the continuity between the B9 ECU connector and the body ground.

STANDARD

Terminal No.	Specified Condition
B9-13 <=> Body ground	No continuity
B9-25 <=> Body ground	No continuity

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: Go To Next Step

INSPECT POWER WINDOW REGULATOR MOTOR ASSY LH (BACK DOOR)

Remove the motor.
Apply battery voltage between the connector terminals and check that the motor gear rotates smoothly.

Fig 3: Inspecting Power Window Regulator Motor Assy LH (Back Door)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NOTE: Do not apply battery voltage to any terminals except terminals 4 and 5.

STANDARD

Terminal No.	Motor gear rotation
Battery positive voltage --> 5 Battery negative voltage --> 4	Counterclockwise
Battery positive voltage --> 4 Battery negative voltage --> 5	Clockwise

NG: REPLACE POWER WINDOW REGULATOR MOTOR ASSY LH (BACK DOOR)

OK: CHECK AND REPLACE MULTIPLEX NETWORK DOOR ECU BACK

CHECK WIRE HARNESS (BACK DOOR ECU <=> REAR WIPER MOTOR) (BACK DOOR ECU <=> BODY GROUND)

Disconnect the B9 ECU connector.
Disconnect the R23 motor connector.

Check continuity between the wire harness side connectors.

Fig 4: Identifying Back Door ECU And Rear Wiper Motor Connector Terminals

STANDARD

Terminal No.	Specified Condition
B9- 12 <=> R23-1	Continuity
B9-18 <=> R23-2	Continuity

Check the continuity between the B9 ECU connector and the body ground.

STANDARD

Terminal No.	Specified Condition
B9- 12 <=> Body ground	No continuity
B9- 18 <=> Body ground	No continuity

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR

OK: REPLACE REAR WIPER MOTOR ASSY