Front Passenger Side Seat Belt Warning Light Malfunction: Procedure

1. Check for DTCs.

   Result

   Result	Proceed to
   No output DTC	A
   Output DTC (CAN communication)	B
   Output DTC (Occupant classification)	C

B → See step   5 

C → See step   6 

A: Go to next step 

1. Operate the Techstream according to the steps on the display and select "Active Test".
   COMBINATION METER
   
   

   Tester Display	Test Part	Control Range	Diagnostic Note
   Front Passenger Side Seat Belt	Front passenger side seat belt warning light	Front passenger side seat belt warning light is OFF/ON	Confirm that the vehicle is stopped with the engine idling

   OK

   Switch condition (ON/OFF) can be switched by "Active Test"

NG → See step   3 

OK → See step   7 

1. Disconnect the E60 connector.
   Fig 1: Checking E60 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the voltage according to the value in the table below.

   Standard Voltage

   Tester Connection	Condition	Specified Condition
   E60-4 (B) - Body ground	Ignition switch ON	11 to 14 V

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR, OR REPLACE FUSE 

OK: Go to next step 

1. Disconnect the E55 connector.
   Fig 2: Checking E60 & E55 Connector Terminals

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Measure the resistance according to the value(s) in the table below.

   Standard Resistance

   Tester Connection	Condition	Specified Condition
   E55-1 (WRNP) - E60-3 (L)	Always	Below 1 Ω
   E55-1 (WRNP) or E60-3 (L) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   8