Toyota Yaris: Theft Deterrent System / How To Proceed With Troubleshooting

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Theft Deterrent System / How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

  • Use this procedure to troubleshoot the theft deterrent system.
  • *: Use the GTS.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP
NEXT

2.

CUSTOMER PROBLEM ANALYSIS

(a) Interview the customer to confirm the trouble.

Click here

NEXT

3.

READ OUT AND SAVE VEHICLE CONTROL HISTORY (ROB)

(a) Read out and save vehicle control history (RoB) using the GTS.

Click here

Body Electrical > Main Body > Utility

Tester Display

Vehicle Control History (RoB)
NEXT

4.

PRE-CHECK

(a) Measure the auxiliary battery voltage with the ignition switch off.

Standard voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.

(b) Check the fuses and relays.

(c) Check the connector connections and terminals to make sure that there are no abnormalities such as loose connections, deformation, etc.

NEXT

5.

SYMPTOM SIMULATION
NEXT

6.

INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM*

(a) Use the GTS to check if the CAN communication system is functioning normally.

Click here

Result

Proceed to

CAN communication system DTC is not output

A

CAN communication system DTC is output

B
B

GO TO CAN COMMUNICATION SYSTEM

A

7.

INSPECT COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM*

(a) Use the GTS to check if the LIN communication system is functioning normally.

Click here

Result

Proceed to

LIN communication system DTC is not output

A

LIN communication system DTC is output

B
B

GO TO LIN COMMUNICATION SYSTEM

A

8.

CHECK POWER DOOR LOCK CONTROL SYSTEM

(a) Refer to the power door lock control system.

Click here

Result

Proceed to

Power door lock control system is normal

A

Power door lock control system is abnormal

B
B

GO TO POWER DOOR LOCK CONTROL SYSTEM

A

9.

CHECK WIRELESS DOOR LOCK CONTROL SYSTEM

(a) Refer to the wireless door lock control system.

Click here

Result

Proceed to

Wireless door lock control system is normal

A

Wireless door lock control system is abnormal

B
B

GO TO WIRELESS DOOR LOCK CONTROL SYSTEM

A

10.

CHECK SMART KEY SYSTEM (for Entry Function)

(a) Refer to the smart key system (for Entry Function).

Click here

Result

Proceed to

Smart key system (for Entry Function) is normal

A

Smart key system (for Entry Function) is abnormal

B
B

GO TO SMART KEY SYSTEM (for Entry Function)

A

11.

CHECK SMART KEY SYSTEM (for Start Function)

(a) Refer to the smart key system (for Start Function).

Click here

Result

Proceed to

Smart key system (for Start Function) is normal

A

Smart key system (for Start Function) is abnormal

B
B

GO TO SMART KEY SYSTEM (for Start Function)

A

12.

CHECK LIGHTING SYSTEM (EXT)

(a) Refer to the lighting system (EXT).

Click here

Result

Proceed to

Lighting system (EXT) is normal

A

Lighting system (EXT) is abnormal

B
B

GO TO LIGHTING SYSTEM (EXT)

A

13.

CHECK LIGHTING SYSTEM (INT)

(a) Refer to the lighting system (INT).

Click here

Result

Proceed to

Lighting system (INT) is normal

A

Lighting system (INT) is abnormal

B
B

GO TO LIGHTING SYSTEM (INT)

A

14.

CHECK HORN SYSTEM

(a) Refer to the horn system.

Click here

Result

Proceed to

Horn system is normal

A

Horn system is abnormal

B
B

GO TO HORN SYSTEM

A

15.

PROBLEM SYMPTOMS TABLE

(a) Refer to Problem Symptoms Table.

Click here

Result

Proceed to

Fault is not listed in Problem Symptoms Table (Fault can be simulated)

A

Fault is not listed in Problem Symptoms Table (Fault cannot be simulated)

B

Fault is listed in Problem Symptoms Table

C
B

CHECK FOR INTERMITTENT PROBLEMS

C

ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE
A

16.

PERFORM TROUBLESHOOTING ACCORDING TO MALFUNCTION SYMPTOM*

(a) System Description.

Click here

(b) Terminals of ECU.

Click here

(c) Data List / Active Test.

Click here

NEXT

17.

ADJUST, REPAIR OR REPLACE
NEXT

18.

CONFIRMATION TEST
NEXT

END

    Precaution

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