Warning Buzzer does not Sound: Procedure

1. Disconnect the C6 meter connector.
   Fig 1: Identifying C6 Combination Meter Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the wire harness side connector.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   C6-7 - Body ground	Ignition key is inserted	Below 1 Ω
   C6-7 - Body ground	Ignition key is not inserted	10 kΩ or higher

NG → See step   3 

OK: Go to next step 

1. Disconnect the C6 meter connector.
   Fig 2: Identifying C6 Combination Meter Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the wire harness side connector.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   C6-8 - Body ground	Driver side door is open	Below 1 Ω
   C6-8 - Body ground	Driver side door is closed	10 kΩ or higher

NG → See step   4 

OK → REPLACE COMBINATION METER ASSEMBLY 

1. Remove the unlock warning switch.
   Fig 3: Identifying Unlock Warning Switch Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the switch.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   1 - 2	Driver side door is open	Below 1 Ω
   1 - 2	Driver side door is closed	10 kΩ or higher

NG → REPLACE UNLOCK WARNING SWITCH ASSEMBLY 

OK → REPAIR OR REPLACE HARNESS AND CONNECTOR (UNLOCK WARNING SWITCH CIRCUIT) 

1. Disconnect the D9 switch connector.
   Fig 4: Identifying D9 Front Door Courtesy Light Switch Connector

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance of the switch.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   D9-1 - Body ground	Driver side door is open	Below 1 Ω
   D9-1 - Body ground	Driver side door is closed	10 kΩ or higher

NG → REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY 

OK → REPAIR OR REPLACE HARNESS AND CONNECTOR (FRONT DOOR COURTESY LIGHT SWITCH CIRCUIT)