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 [w/ Smart Key System])	B
   Output DTC (CAN communication [w/o Smart Key System])	C
   Output DTC (Occupant detection)	D

B →See step   5 

C →See step   10 

D →See step   6 

A: Go to next step 

1. Connect Techstream to the DLC3.
2. Turn the ignition switch to ON.
3. Read the DATA LIST according to the displays on the tester screen.
   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, engine idling

   OK

   Switch condition (ON or OFF) can be switched by "ACTIVE TEST"

NG →See step   3 

OK →See step   7 

1. Disconnect the E19 connector.
   Fig 1: Identifying E19 Connector Of Hazard Warning Switch

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

   Standard voltage

   Tester Connection	Condition	Specified Condition
   E19-1 (B) - Body ground	Ignition switch ON	11 to 14 V

   Standard resistance

   Tester Connection	Condition	Specified Condition
   E19-5 (E) - Body ground	Always	Below 1 Ω

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

OK: Go to next step 

1. Disconnect the E1 connector.
   Fig 2: Identifying E19 Front Passenger Seat Beat Warning Light & E1 Combination Meter Connector

   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
   E1-31 (PBLT) - E19-3 (PBEW)	Always	Below 1 Ω
   E1-31 (PBLT) or E19-3 (PBEW) - Body ground	Always	10 kΩ or higher

3. Proceed to the next step based on the inspection result.

   Result

   Result	Proceed to
   NG	A
   OK (w/ Navigation System)	B
   OK (w/o Navigation System)	C

A →REPAIR OR REPLACE HARNESS OR CONNECTOR 

B →See step   9 

C →See step   8