Inspection Procedure

1. Check that the seat belt and key reminder buzzers sound.

   Result 

   RESULT
   
   

   Result	Proceed to
   Seat belt warning buzzer does not sound (Driver side)	A
   Seat belt warning buzzer does not sound (Passenger side)	B
   Key reminder warning buzzer does not sound	C
   No warning buzzers sound	D

   HINT:

   • Seat belt warning buzzer on: Ignition switch is ON, driver or front passenger seat belt is unfastened, and vehicle speed is 12.4mph (20 km/h) or more.
   • Key reminder warning buzzer on: Ignition switch is OFF, key is in ignition key cylinder, and driver side door is open.

B:  Go to step  5

C: GO TO KEY REMINDER WARNING SYSTEM  (See SYSTEM DIAGRAM )

D: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )

A: Go to next step 

1. Disconnect the L19 front seat inner belt assembly (driver side) connector.
2. Measure the resistance.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Condition	Specified Condition
   + -E	Tongue plate fastened	10 kΩ or higher
   + -E	Tongue plate unfastened	Below 1 Ω

   Fig 1: Identifying Front Seat Inner Belt Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Reconnect the front seat inner belt assembly (driver side) connector.

NG: REPLACE FRONT SEAT INNER BELT ASSEMBLY LH  (See REMOVAL )

OK: Go to next step 

1. Disconnect the E13 combination meter assembly connector.
2. Disconnect the L19 front seat inner belt assembly (driver side) connector.
3. Measure the resistance.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   E13-8 (L) - L19-3 (+)	Below 1 Ω

   Fig 2: Identifying Combination Meter And Front Seat Inner Belt Assembly Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Reconnect the combination meter assembly connector.
5. Reconnect the front seat inner belt assembly (driver side) connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: Go to next step 

1. Disconnect the L19 front seat inner belt assembly (driver side) connector.
2. Measure the resistance.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   L19-3 (+) - Body ground	Below 1 Ω

   Fig 3: Identifying Front Seat Inner Belt Assembly Connector Terminals (Driver Side)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
3. Reconnect the front seat inner belt assembly (driver side) connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch ON and turn the tester ON.
3. Enter the following menus: DIAGNOSIS / SRS AIRBAG/ DTC INFO.

   Result 

   RESULT
   
   

   Result	Proceed to
   No SRS DTCs are output	A
   SRS DTCs are output	B

B: GO TO SUPPLEMENTAL RESTRAINT SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch ON and turn the tester ON.
3. Enter the following menus: DIAGNOSIS / OCCUPANT DETECT/DTC INFO.

   Result 

   RESULT
   
   

   Result	Proceed to
   No occupant classification system DTCs are output	A
   Occupant classification system DTCs are output	B

B: GO TO OCCUPANT CLASSIFICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

A: Go to next step 

1. Disconnect the E29 center airbag sensor assembly connector.
2. Disconnect the E13 combination meter assembly connector.
3. Measure the resistance.

   Standard resistance 

   TESTER CONNECTION SPECIFIED CONDITION
   
   

   Tester Connection	Specified Condition
   E29-13 (PBEW) - E13-10 (PBKL)	Below 1 Ω

   Fig 4: Identifying E29 Center Airbag Sensor Connector Terminals And E13 Combination Meter Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Reconnect the center airbag sensor assembly connector.
5. Reconnect the combination meter assembly connector.

NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK: REPLACE COMBINATION METER ASSEMBLY  (See REMOVAL  )