Warning Buzzer does not Sound: Procedure

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

   Result

   Result	Proceed to
   Seat belt warning buzzer does not sound (where equipped with seat belt warning system)	A
   Key reminder warning buzzer does not sound (where equipped with key reminder warning system)	B
   Taillight reminder warning buzzer does not sound (Meter illuminations normal)	C
   No warning buzzers sound	D

   HINT: 

   • Seat belt warning buzzer on: Ignition switch is on (IG), 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.
   • Taillight reminder warning buzzer on: Ignition switch is off, taillight relay switch is on (IG), and driver side door is open.

B → See step   5 

C → See step   11 

D → See step   14 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the tester on.
3. Enter the following menus: Body / Center airbag sensor / Trouble Codes.

   Result

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

B → See step   15 

A: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the tester on.
3. Enter the following menus: Body / Occupant Detection / Trouble Codes.

   Result

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

B → See step   16 

A: Go to next step 

1. Ignition switch is off.
2. Key is in ignition key cylinder.
3. Driver side door is open.

   OK

   Key reminder warning buzzer ON.

NG → See step   14 

OK → See step   17 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the tester on.
3. Operate the Techstream according to the display and select "Data List". Refer to DATA LIST / ACTIVE TEST .

   Body Electrical / Main Body / Data List

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D Door Courtesy SW	Driver side door courtesy light switch signal/ ON or OFF	ON: Driver side door is open OFF: Driver side door is closed	-

NG → See step   9 

OK: Go to next step 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the tester on.
3. Operate the Techstream according to the display and select "Data List". Refer to DATA LIST / ACTIVE TEST .

   Body Electrical / Main Body / Data List

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   Key Unlock Warning SW	Unlock warning switch signal/ ON or OFF	ON: Key is in ignition key cylinder OFF: No key is in ignition key cylinder	-

NG → See step   7 

OK → See step   18 

1. Remove the unlock warning switch assembly. Refer to REMOVAL .
   Fig 1: Identifying Unlock Warning Switch Assembly 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	Switch Condition	Specified Condition
   1 - 2	Not pushed	10 k Ω or higher
   1 - 2	Pushed	Below 1 Ω

3. Reinstall the unlock warning switch assembly. Refer to INSTALLATION .

NG → See step   19 

OK: Go to next step 

1. Disconnect the C6 unlock warning switch assembly connector.
   Fig 2: Checking Harness And Connector (Unlock Warning Switch Assembly -- Main Body ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 2E main body ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   C6-1 - 2E-23 (KSW)	Always	Below 1 Ω
   C6-2 - Body ground	Always	Below 1 Ω

4. Reconnect the unlock warning switch assembly connector.
5. Reconnect the main body ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   17 

1. Disconnect the H1 front door courtesy light switch LH connector.
   Fig 3: Inspecting Front Door Courtesy Switch (Driver Side)

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

   Standard resistance

   Tester Connection	Switch Condition	Specified Condition
   H1-1 - Body ground	Not pushed (ON)	Below 1 Ω
   H1-1 - Body ground	Pushed (OFF)	10 kΩ or higher

3. Reconnect the front door courtesy light switch LH connector.

NG → See step   23 

OK: Go to next step 

1. Disconnect the H1 front door courtesy light switch connector.
   Fig 4: Checking Harness And Connector (Front door Courtesy Light Switch -- Main Body ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 2A main body ECU connector.
3. Measure the resistance according to the value(s) in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   H1-1 - 2A-21 (DCTY)	Always	Below 1 Ω

4. Reconnect the front door courtesy light switch connector.
5. Reconnect the main body ECU connector.

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR 

OK → See step   20 

1. Connect the Techstream to the DLC3.
2. Turn the ignition switch on (IG) and turn the tester on.
3. Operate the Techstream according to the display and select "Data List". Refer to DATA LIST / ACTIVE TEST .

   Body Electrical / Main Body / Data List

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   D Door Courtesy SW	Driver side door courtesy light switch signal/ON or OFF	ON: Driver side door is open OFF: Driver side door is closed	-

NG → See step   12 

OK → See step   21 

1. Disconnect the H1 front door courtesy light switch LH connector.
   Fig 5: Inspecting Front Door Courtesy Switch (Driver Side)

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

   Standard resistance

   Tester Connection	Switch Condition	Specified Condition
   H1-1 - Body ground	Not pushed (ON)	Below 1 Ω
   H1-1 - Body ground	Pushed (OFF)	10 kΩ or higher

3. Reconnect the front door courtesy light switch LH connector.

NG → See step   23 

OK: Go to next step 

1. Disconnect the H1 front door courtesy light switch connector.
   Fig 6: Checking Harness And Connector (Front door Courtesy Light Switch -- Main Body ECU)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect the 2A main body ECU connector.
3. Measure the resistance according to the value in the table below.

   Standard resistance

   Tester Connection	Condition	Specified Condition
   H1-1 - 2A-21 (DCTY)	Always	Below 1 Ω

4. Reconnect the front door courtesy light switch connector.
5. Reconnect the main body ECU connector.

NG → See step   23 

OK → See step   22