Toyota Yaris: Power Steering System / How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT
HINT:
- Use the following procedure to troubleshoot the power steering system.
- *: Use the GTS.
PROCEDURE
| 1. | VEHICLE BROUGHT TO WORKSHOP |
|
| 2. | INSPECT AUXILIARY BATTERY |
(a) Turn the ignition switch off.
(b) Measure the voltage of the auxiliary battery.
Standard Voltage:
11 to 14 V
HINT:
If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step.
|
| 3. | CHECK DTC AND FREEZE FRAME DATA* |
HINT:
Refer to DTC Check / Clear.
Click here
|
| 4. | PROBLEM SYMPTOM CONFIRMATION |
| Result | Proceed to |
|---|---|
| Symptom does not occur. | A |
| Symptom occurs. | B |
| B |
 | GO TO STEP 6 |
|
| 5. | SYMPTOM SIMULATION |
|
| 6. | CHECK CAN COMMUNICATION SYSTEM* |
(a) Check for DTCs.
Click here
| Result | Proceed to |
|---|---|
| CAN communication system DTCs are not output. | A |
| CAN communication system DTCs are output. | B |
HINT:
- If any CAN communication system DTCs are output, perform troubleshooting for the CAN communication system first.
- If communication to the power steering ECU assembly cannot be established through the GTS, inspect terminals CANH and CANL of the DLC3 and the power steering ECU assembly, and the IG circuit of the power steering ECU assembly.
| B |
 | PROCEED TO CAN COMMUNICATION SYSTEM |
|
| 7. | CHECK FOR DTC* |
(a) Check for DTCs.
Click here
HINT:
Refer to Diagnostic Trouble Code Chart when any DTCs are output.
Click here
| Result | Proceed to |
|---|---|
| DTCs are not output. | A |
| DTCs are output. | B |
| B |
 | GO TO STEP 10 |
|
| 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 STEP 10 |
|
| 9. | OVERALL ANALYSIS AND TROUBLESHOOTING* |
(a) Refer to Terminals of ECU.
Click here
(b) Refer to Data List / Active Test.
Click here
|
| 10. | REPAIR OR REPLACE |
|
| 11. | CONFIRMATION TEST |
| NEXT |
 | END |
System Description
SYSTEM DESCRIPTION DESCRIPTION The power steering system generates torque through the operation of the motor and the reduction gear installed on the column shaft in order to assist steering effort...
Calibration
CALIBRATION POWER STEERING ECU INITIAL SETTING (ASSIST MAP WRITING) (USING GTS) NOTICE: If any of the following conditions are met, perform Power Steering ECU Initial Setting (assist map writing):
The power steering ECU assembly has been replaced...
Other information:
Toyota Yaris XP210 (2020-2025) Reapir and Service Manual: Components
COMPONENTS ILLUSTRATION *1 FUEL RETURN VENT TUBE SUB-ASSEMBLY *2 FUEL SENDER GAUGE ASSEMBLY *3 REAR FLOOR SERVICE HOLE COVER *4 NO. 1 FUEL TUBE CLAMP *5 FUEL PUMP GAUGE RETAINER *6 FUEL TANK VENT TUBE ASSEMBLY *7 NO...
Toyota Yaris XP210 (2020-2025) Owner's Manual: Outside the United States/Canada
Government regulations in the United States/Canada require that automobiles meet specific emission regulations and safety standards. Therefore, vehicles built for use in the United States/Canada may differ from those sold in other countries. The differences may make it difficult or even impossible for your vehicle to receive satisfactory servicing in other countries...
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Fuel Gauge
The fuel gauge shows approximately how much fuel is remaining in the tank when the ignition is switched ON. We recommend keeping the tank over 1/4 full.
