Toyota Camry (XV70): Fail-safe Chart
FAIL-SAFE CHART
If a problem occurs in the power steering system, the power steering assist will be stopped or the amount of power assist will be decreased to protect the system.
Power Steering System
|
Malfunction | Fail-safe Operation |
EPS warning light | Buzzer |
- Torque sensor (rack and pinion power steering gear assembly) malfunction
- Power steering motor (rack and pinion power steering gear assembly) malfunction
- Power steering ECU (rack and pinion power steering gear assembly) malfunction
| Power steering assist stops or assist amount is limited |
Red or yellow | Sounds intermittently or once |
- Vehicle speed signal malfunction
- Skid control ECU (brake actuator assembly) malfunction
- Decrease in battery voltage (not malfunction)
| Power steering assist is temporarily limited |
Yellow | Sounds once |
HINT:
- If the power steering assist stops, the EPS warning light comes on (red).
- If the amount of power assist is reduced, the EPS warning light comes on (yellow) and a vibration or sound may occur.
- The amount of power assist may be decreased to prevent the motor and ECUs from overheating if the steering wheel is continuously turned when the vehicle is either stopped or being driven at a low speed, or if the steering wheel is kept at either full lock position for a long time. In such cases, the amount of power assist returns to normal when the steering wheel is not turned for approximately 10 minutes with the engine running.
- If the battery is not sufficiently charged or the voltage decreases temporarily, the amount of power assist will be reduced and the EPS warning light will come on. In such cases, the amount of power assist returns to normal when the battery voltage recovers.
READ NEXT:
DATA LIST / ACTIVE TEST DATA LIST HINT:
Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts.
DIAGNOSTIC TROUBLE CODE CHART Power Steering System
DTC No. Detection Item
DTC Detection Condition
Warning Indicate Return-to-normal Condition
Note Link
C1511
ON-VEHICLE INSPECTION PROCEDURE
1. CHECK STEERING EFFORT (TORQUE) NOTICE: These service operations may affect the SRS airbags. Be sure to read the precautionary notices concerning the SRS airbag sy
SEE MORE:
PROBLEM SYMPTOMS TABLE
NOTICE:
When replacing the forward recognition camera, replace it with a new one. If a forward recognition camera which was installed to another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle and
DESCRIPTION When the ECM detects an internal malfunction, DTC P057504 or P057549 is stored.
DTC No. Detection Item
DTC Detection Condition Trouble Area
DTC Output from
P057504 Cruise Control System Internal Failure
When the dynamic radar cruise control system is o