Toyota Yaris: Lighting System / How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the lighting system.
- *: Use the GTS.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
| 2. | CUSTOMER PROBLEM ANALYSIS |
HINT:
- In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
- Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
-
The following 5 items are important points for problem analysis:
What
Vehicle model, system name
When
Date, time, occurrence frequency
Where
Road conditions
Under what conditions?
Driving conditions, weather conditions
How did it happen?
Problem symptoms
|
| 3. | 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.
|
| 4. | CHECK COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* |
(a) Using the GTS, check for CAN communication system DTCs.
Click here
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| Result | Proceed to |
|---|---|
| CAN DTCs are not output | A |
| CAN DTCs are output | B |
| B |
 | GO TO CAN COMMUNICATION SYSTEM |
|
| 5. | CHECK CXPI COMMUNICATION SYSTEM* |
(a) Use the GTS to check if the CXPI communication system is functioning normally.
Click here
OK:
CXPI communication system DTCs are not output.
| NG |
| GO TO CXPI COMMUNICATION SYSTEM |
|
| 6. | CHECK FOR DTC* |
(a) Check for DTCs.
Body Electrical > Main Body > Trouble Codes| Result | Proceed to |
|---|---|
| Malfunction is duplicated but DTCs arenot output | A |
| Malfunction cannot be duplicated and DTCs are not output | B |
| DTs are output | C |
| B |
| USE SIMULATION METHOD TO CHECK |
| C |
| GO TO DIAGNOSTIC TROUBLE CODE CHART |
|
| 7. | CHECK VEHICLE CONTROL HISTORY* |
(a) Using the GTS, check for Vehicle Control History (RoB).
Body Electrical > Front Recognition Camera (Front Lighting Control) > Utility| Tester Display |
|---|
| Vehicle Control History (RoB) |
NOTICE:
Make sure to record the output Vehicle Control History.
| Result | Proceed to |
|---|---|
| Vehicle Control History codes are not output | A |
| Vehicle Control History code X2020 and/or X204D is output | B |
| Vehicle Control History codes other than X2020 and X204D are output | C |
| B |
| GO TO VEHICLE CONTROL HISTORY (Check Details of Code X2020 or X204D) |
| C |
| GO TO STEP 12 |
|
| 8. | PROBLEM SYMPTOMS TABLE |
(a) Refer to Problem Symptoms Table.
Click here
| Result | Proceed to |
|---|---|
| Fault is not listed in Problem Symptoms Table | A |
| Fault is listed in Problem Symptoms Table | B |
| B |
| GO TO PROBLEM SYMPTOMS TABLE |
|
| 9. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Operation Check.
Click here
(b) Terminals of ECU.
Click here
(c) Data List / Active Test.
Click here
(d) On-vehicle Inspection.
(e) Inspection.
|
| 10. | ADJUST, REPAIR OR REPLACE |
|
| 11. | CONFIRMATION TEST |
| NEXT |
| END |
| 12. | CHECK VEHICLE CONTROL HISTORY* (FRONT RECOGNITION CAMERA (FRONT LIGHTING CONTROL)) |
(a) Clear Vehicle Control History
(1) Clear the Vehicle Control History.
Body Electrical > Front Recognition Camera (Front Lighting Control) > Utility| Tester Display |
|---|
| Vehicle Control History (RoB) |
(b) Check Vehicle Control History
(1) Using the GTS, check for Vehicle Control History (RoB).
Body Electrical > Front Recognition Camera (Front Lighting Control) > Utility| Tester Display |
|---|
| Vehicle Control History (RoB) |
| Result | Proceed to |
|---|---|
| Vehicle Control History (RoB) codes are not output | A |
| Vehicle Control History (RoB) codes are output | B |
| A |
| USE SIMULATION METHOD TO CHECK |
| B |
| GO TO VEHICLE CONTROL HISTORY |
System Diagram
S..
Operation Check
OPERATION CHECK AUTOMATIC LIGHT CONTROL SYSTEM OPERATION CHECK NOTICE: Make sure that the customize settings are set to default when performing the automatic light control system operation check...
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Key Suspend Function
If a key is left in the vehicle, the functions of the key left in the vehicle are temporarily suspended to prevent theft of the vehicle.
To restore the functions, press the unlock button on the functions-suspended key in the vehicle.
