Inspection Procedure

READ VALUE OF HAND-HELD TESTER
1. Using the hand-held tester, check that un-lock warning switch signal is output when the switch is operated.
  Standard (Body ECU (Switch condition)):
  
  Fig 1: Standard (Body ECU (Switch Condition)) Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: Go to step 4 .
2. NG: Go to next step.
INSPECT UNLOCK WARNING SWITCH ASSY
1. Remove the unlock warning switch.
2. Inspect the unlock warning switch continuity.
  Standard:
  
  Fig 2: Unlock Warning Switch Assy Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 3: Inspecting Unlock Warning Switch Assy
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPLACE UNLOCK WARNING SWITCH ASSY
2. OK: Go to next step.
CHECK WIRE HARNESS (UNLOCK WARNING SWITCH ASSY <=> INSTRUMENT PANEL JUNCTION BLOCK ASSY (BODY ECU))
1. Disconnect the K3 unlock warning switch and B5 body ECU connectors.
2. Check the continuity between the wire harness side connectors.
  Standard (Check for open):
  
  Fig 4: Unlock Warning Switch Assy <=> Instrument Panel Junction Block Assy (Body ECU) Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 5: Checking Wire Harness (Unlock Warning Switch Assy <=> Instrument Panel Junction Block Assy (Body ECU))
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
2. OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY
READ VALUE OF HAND-HELD TESTER
1. Using the hand-held tester, check that driver side door courtesy switch signal is output when the switch is operated.
  Standard (Body ECU (Switch condition)):
  
  Fig 6: Standard (Body ECU (Switch Condition)) Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY
2. NG: Go to next step.
INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY (DRIVER SIDE)
1. Remove the courtesy lamp switch.
2. Inspect the courtesy lamp switch continuity.
  Standard:
  
  Fig 7: Front Door Courtesy Lamp Switch Assy (Driver Side) Table
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  Fig 8: Inspecting Front Door Courtesy Lamp Switch Assy (Driver Side)
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. NG: REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSY
2. OK: Go to next step.

CHECK WIRE HARNESS (FRONT DOOR COURTESY LAMP SWITCH ASSY (DRIVER SIDE) <=> INSTRUMENT PANEL JUNCTION BLOCK ASSY (BODY ECU))

Disconnect the D12 courtesy lamp switch and B4 body ECU connectors.

Check the continuity between the wire harness side connectors.

Standard (Check for open):

FRONT DOOR COURTESY LAMP SWITCH ASSY (DRIVER SIDE) <=> INSTRUMENT PANEL JUNCTION BLOCK ASSY (BODY ECU)) CONTINUITY

Symbols (Terminal No.)	Specified Condition
- (D12-1) <=> DCTY (B4-23)	Continuity

Fig 9: Checking Wire Harness (front Door Courtesy Lamp Switch Assy (Driver Side) <=> Instrument Panel Junction Block Assy (Body ECU))

NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
OK: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSY