April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

INSPECT UNLOCK WARNING SWITCH ASSY
1. Inspect the continuity of the key unlock warning switch continuity.
  Standard:
  
  Fig 1: Key Unlock Warning Switch Terminals Specified Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 2: Identifying Key Unlock Warning Switch Connector
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPLACE UNLOCK WARNING SWITCH ASSY
2. OK: GO TO NEXT STEP
CHECK WIRE HARNESS
1. Disconnect the B6 body ECU and U1 unlock warning switch connectors.
2. Check the continuity between the disconnected connector.
  Standard:
  
  Fig 3: Terminals No And Specified Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Check the continuity between the unlock warning switch disconnected connector and the body ground.
  Standard:
  
  Fig 4: Terminals No And Specified Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 5: Identifying Body ECU (Instrument Panel J/B) And Unlock Warning Switch Connectors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
2. OK: GO TO NEXT STEP

INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY

Inspect the continuity of the key unlock warning switch continuity.

Standard:

FRONT DOOR COURTESY LAMP SWITCH TERMINALS SPECIFIED CONDITION

Terminal No.	Condition	Specified condition
1 - Ground	Free	Continuity
1 - Ground	Push	No continuity

Fig 6: Identifying Front Door Courtesy Lamp Switch Connector

G02625665

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSY
OK: GO TO NEXT STEP

CHECK WIRE HARNESS
1. Disconnect the B8 body ECU and D6 front door courtesy lamp switch connectors.
2. Check the continuity between the disconnected connectors.
  Standard:
  
  Fig 7: Terminals No 1 And Specified Condition Chart
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 8: Identifying Front Door Courtesy Lamp Switch And Instrument Panel Connectors
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
2. OK: GO TO NEXT STEP
  REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY