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 (2020-2024) Reapir and Service Manual: Central Gateway ECU System Internal Failure (B102004)
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from B102004 Central Gateway ECU System Internal Failure A malfunction in the non-volatile storage of the central gateway ECU (network gateway ECU) is detected...
Toyota Yaris XP210 (2020-2024) Reapir and Service Manual: Check For Intermittent Problems
CHECK FOR INTERMITTENT PROBLEMS NOTICE: Operation history is stored in the RAM or EEPROM of the certification ECU (smart key ECU assembly). As the cause of a malfunction stored in the RAM will be cleared when the cable is disconnected from the negative (-) battery terminal, do not disconnect the cable from the negative (-) battery terminal before checking and recording are complete...
Categories
- Manuals Home
- Toyota Yaris Owners Manual
- Toyota Yaris Service Manual
- Immobilizer System
- How to connect USB port/Auxiliary jack
- Brake System Control Module "A" System Voltage System Voltage Low (C137BA2)
- New on site
- Most important about car
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.
