Toyota Yaris: Window Defogger System / How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the window defogger system.
- *: Use the GTS.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
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| 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 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.
(d) Check the vehicle specifications.
|
| 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 |
.gif) | GO TO CAN COMMUNICATION SYSTEM |
|
| 5. | CHECK COMMUNICATION FUNCTION OF LIN COMMUNICATION SYSTEM* |
(a) Using the GTS, check for LIN communication system DTCs.
Click here
| Result | Proceed to |
|---|---|
| LIN DTCs are not output | A |
| LIN DTCs are output | B |
| B |
| GO TO LIN COMMUNICATION SYSTEM |
|
| 6. | CHECK COMMUNICATION FUNCTION OF CXPI COMMUNICATION SYSTEM* |
(a) Using the GTS, check for CXPI communication system DTCs.
Click here
| Result | Proceed to |
|---|---|
| CXPI DTCs are not output | A |
| CXPI DTCs are output | B |
| B |
| GO TO CXPI COMMUNICATION SYSTEM |
|
| 7. | PROBLEM SYMPTOMS TABLE |
(a) Click here
| Result | Proceed to |
|---|---|
| Fault is not listed in Problem Symptoms Table | A |
| Fault is listed in Problem Symptoms Table | B |
| B |
| ADJUST, REPAIR OR REPLACE IN ACCORDANCE WITH PROBLEM SYMPTOMS TABLE |
|
| 8. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Data List / Active Test
Click here
(b) Terminals of ECU
Click here
(c) Operation Check
Click here
|
| 9. | REPAIR OR REPLACE |
|
| 10. | CONFIRMATION TEST |
| NEXT |
| END |
System Description
SYSTEM DESCRIPTION GENERAL (a) The rear window defogger wire (back door glass) is attached to the inside of the rear window and defogs the window surface quickly when the rear window defogger switch is pressed...
Operation Check
OPERATION CHECK CHECK WINDOW DEFOGGER SYSTEM (a) Turn the ignition switch to ON. (b) Check that the rear window defogger wire becomes warm by operating the rear window defogger switch of the air conditioning control assembly...
Other information:
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Battery Monitor Module General Electrical Failure (P058A01)
DESCRIPTION The battery state sensor assembly detects the voltage, current and temperature of the auxiliary battery. The charging condition is calculated from the voltage and current and output to the ECM. The ECM sends an instruction to generate voltage to the generator assembly based on that signal...
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Cruise Control Input Processor (P160700)
DESCRIPTION When the ECM detects that it is not functioning normally, DTC P160700 is stored. DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from P160700 Cruise Control Input Processor When the ignition switch is ON and control of vehicle speed by the dynamic radar cruise control system is prohibited by the sub-CPU, the dynamic radar cruise control system operates for 0...
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