Inspection Procedure

CHECK BUZZER

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

BUZZER CHECK

All buzzer do 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: GO TO NEXT STEP.
REPLACE COMBINATION METER ASSY (SEE COMBINATION METER ASSY )

INSPECT FRONT SEAT INNER BELT ASSY (DRIVER SIDE)

Disconnect the B6 connector.

Measure the resistance according to the value (s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED CONDITION

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

NG: REPLACE FRONT SEAT INNER BELT ASSY (DRIVER SIDE)

Fig 1: Inspecting Front Seat Inner Belt Assy (Driver Side)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: GO TO NEXT STEP.

CHECK HARNESS OR CONNECTOR (BETWEEN FRONT SEAT INNER BELT ASSY (DRIVER SIDE) AND COMBINATION METER ASSY) (SEE HOW TO PROCEED WITH TROUBLESHOOTING )

Disconnect the C9 and B6 connectors.

Measure the resistance according to the value (s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED CONDITION

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 (Between Front Seat Inner Belt Assy (Driver Side) And Combination Meter Assy)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: GO TO NEXT STEP.
REPLACE COMBINATION METER ASSY (SEE COMBINATION METER ASSY )

INSPECT COMBINATION METER ASSY

Disconnect the C9 connector.

Measure the resistance according to the value (s) in the table below.

Standard:

TESTER CONNECTION SPECIFIED CONDITION

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: Inspecting Combination Meter Assy
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: GO TO NEXT STEP.

INSPECT COMBINATION METER ASSY

Disconnect the C9 connector.

Measure the resistance according to the value (s) in the table below.

Fig 4: Inspecting Combination Meter Assy

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Standard:

TESTER CONNECTION SPECIFIED CONDITION

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
OK: GO TO NEXT STEP.
REPLACE COMBINATION METER ASSY (SEE COMBINATION METER ASSY )

INSPECT UNLOCK WARNING SWITCH ASSY

Disconnect the U1 connector.

Measure the resistance according to the value (s) in the table below.

Fig 5: Inspecting Unlock Warning Switch Assy

Standard:

TESTER CONNECTION SPECIFIED CONDITION

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

NG: REPLACE UNLOCK WARNING SWITCH ASSY
OK: GO TO NEXT STEP.
REPAIR OR REPLACE HARNESS OR CONNECTOR (UNLOCK WARNING SWITCH CIRCUIT)

INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY

Disconnect the D7 connector.

Measure the resistance according to the value (s) in the table below.

Fig 6: Inspecting Front Door Courtesy Lamp Switch Assy

Standard:

TESTER CONNECTION SPECIFIED CONDITION

Tester connection	Condition	Specified Condition
D7-1 - Body ground	Driver side courtesy switch shaft is pushed in	10 kΩ or higher
D7-1 - Body ground	Driver side courtesy switch shaft is free	Below 1 Ω

NG: REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSY
OK: GO TO NEXT STEP.
REPAIR OR REPLACE HARNESS OR CONNECTOR (FRONT DOOR COURTESY LAMP SWITCH CIRCUIT)