Inspection Procedure

NG: GO TO  HOW TO PROCEED WITH TROUBLESHOOTING 

OK: Go To Next Step. 

1. Data list (for MANUAL UP/DOWN switch)
   1. Using the hand-held tester, check that DTC B1221 is output when the switch is operated.

HINT:

Using DTC "B1221" which is a code when any of the master switch is constantly turned on, the MANUAL UP/DOWN switch operation can be monitored. If there is an output of DTC "B1221" when the switch is operated, the switch circuit can be considered normal.

Standard [Driver side J/B (body ECU) (Switch condition)]: 

Fig 1: Measurement Item Normal Condition Table

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSY 

OK: Go To Next Step. 

HINT:

• When the rear door does not operate by master switch, proceed to "A".
• When the passenger's door does not operate by master switch, proceed to "B".

B: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR MPX2 (D17-8) <=> MPX2 (F13-8) WIRE HARNESS 

A 

1. Disconnect the B5 and B6 connectors of the driver side J/B.
2. Disconnect the R15 power window regulator switch assy rear (LH side) connector.
3. Disconnect the R16 power window regulator switch assy rear (RH side) connector.
   Fig 2: Identifying B5, B6, R15 And R16 Connectors

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Check the continuity of each terminal of the disconnected connectors.

Standard (Rear door LH): 

Standard (Rear door RH): 

HINT:

• When the rear door LH does not inspect the continuity, proceed to "NG-A".
• When the rear door RH does not inspect the continuity, proceed to "NG-B".

NG-A: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR MPX4 (B6-5) <=> MPX1 (R15-8) WIRE HARNESS 

NG-B: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR MPX5 (B5-1) <=> MPX1 (R16-8) WIRE HARNESS 

OK: REPLACE DRIVER SIDE JUNCTION BLOCK ASSY