Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: 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 (electric power steering column sub-assembly) malfunction
  • Power steering motor (power steering ECU assembly) malfunction
  • Power steering ECU assembly malfunction

Power steering assist stops or assist amount is limited

Red or yellow

Sounds intermittently or once

  • Vehicle speed signal malfunction
  • Brake booster with master cylinder assembly (Skid control ECU) malfunction
  • Decrease in auxiliary 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 auxiliary 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 auxiliary battery voltage recovers.

    READ NEXT:

     Data List / Active Test

    DATA LIST / ACTIVE TEST DATA LIST HINT: Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This

     Diagnostic Trouble Code Chart

    DIAGNOSTIC TROUBLE CODE CHART Power Steering System DTC No. Detection Item Warning Indicate Link C05D604 Power Steering Contro

     On-vehicle Inspection

    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

    SEE MORE:

     Outside Luggage Compartment (Back Door) Electrical key Antenna Circuit Open (B27A813)

    DESCRIPTION The certification ECU (smart key ECU assembly) generates a request signal and transmits the signal to the electrical key antenna (outside luggage compartment). For the electrical key antenna (outside luggage compartment) to detect when the electrical key transmitter sub-assembly is broug

     Air Conditioning Panel

    RemovalREMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL) Procedure Part Name Code 1 CENTER INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY 55405B - - - 2 AIR CONDITIONING CONTROL ASSEMBLY 55900 - - PROCEDURE

    © 2020-2025 Copyright www.tcorollacross.com PT