Inspection Procedure

1. Operate the buzzer and check that the buzzer for seat belt warning, key reminder warning and light reminder warning sound normally.

   Result 

   RESULT CHART
   
   

   Result	Proceed to
   All buzzer does not sound.	A
   Seat belt warning does not sound.	B
   Key/Light reminder warning does not sound.	C

B: GO TO step 2 

C:  GO TO step  4

A: REPLACE COMBINATION METER ASSEMBLY 

1. Disconnect the B6 connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester connection	Condition	Specified condition
   B6-5 - B6-6	Seat belt is fastened	10 Ω or higher
   B6-5 - B6-6	Seat belt is not fastened	Below 1 Ω

NG: REPLACE FRONT SEAT INNER BELT ASSEMBLY (for Driver Side) 

Fig 1: Inspecting Front Seat Inner Belt Assembly (For Driver Side)

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OK: GO TO Next Step 

1. Disconnect the C9 and B6 connectors.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester connection	Condition	Specified condition
   C9-12 - B6-5	Always	Below 1 Ω
   C9-12 - Body ground	Always	10 kΩ or higher
   B6-6 - Body ground	Always	Below 1 Ω

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

Fig 2: Checking Harness Or Connector (Combination Meter - Front Seat Inner Belt Assembly)

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OK: REPLACE COMBINATION METER ASSEMBLY 

1. Disconnect the C9 connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester connection	Condition	Specified condition
   C9-16 - Body ground	Ignition key is not inserted	10 kΩ or higher
   C9-16 - Body ground	Ignition key is inserted	Below 1 Ω

NG:  GO TO step  6

Fig 3: Disconnecting C9 Connector

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OK: GO TO Next Step 

1. Disconnect the C9 connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester connection	Condition	Specified condition
   C9-17 - Body ground	Driver side door is open	10 kΩ or higher
   C9-17 - Body ground	Driver side door is closed	Below 1 Ω

NG:  GO TO step  7

Fig 4: Disconnecting C9 Connector

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OK: REPLACE COMBINATION METER ASSEMBLY 

1. Disconnect the U1 connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester connection	Condition	Specified condition
   U1-1 - U1-2	Ignition key is inserted	10 kΩ or higher
   U1-1 - U1-2	Ignition key is not inserted	Below 1 Ω

Fig 5: Inspecting Unlock Warning Switch Assembly

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NG: REPLACE UNLOCK WARNING SWITCH ASSEMBLY 

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

1. Disconnect the D4 connector.
2. Measure the resistance according to the value(s) in the table below.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION CHART
   
   

   Tester connection	Condition	Specified condition
   D4-1 - Body ground	Driver side courtesy switch shaft is pushed in	10 kΩ or higher
   D4-1 - Body ground	Driver side courtesy switch shaft is free	Below 1 Ω

Fig 6: Inspecting Front Door Courtesy Light Switch Assembly

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

NG: REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY 

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