Toyota CH-R Service Manual: 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
  • Skid control ECU (brake actuator assembly) malfunction
  • Power steering ECU assembly overheating
  • 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.
    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK DTCs (USING TECHSTREAM) (a) Turn the ignition switch off. (b) Connect the Techstream to the DLC3. (c) Turn the ignition switch to ON. (d) Turn the Techstream on. (e) Ente ...

    Freeze Frame Data
    FREEZE FRAME DATA FREEZE FRAME DATA NOTICE: It is difficult to show the specified values (judgment values) clearly because freeze frame data values change significantly due to differenc ...

    Other materials:

    Toyota CH-R Service Manual > Can Communication System: Check Bus 1 Line for Short to +B
    DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when no resistance exists between terminal 23 (CA1H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 8 (CA1L) of the central gateway ECU (network gateway ECU) and t ...

    KIA Niro EV / Hybrid (SG2) - (2021-2023) - Owner's manual > Lamps: Replacing glove box lamp (Bulb type)
    Operation Using a flat-blade screwdriver, gently pry the lamp assembly from interior.  Remove the cover from the lamp assembly. Remove the bulb by pulling it straight out. Install a new bulb in the socket. Install the cover to the lamp assembly. Install the lamp assembly ...

    Toyota CH-R Owners Manual

    Toyota CH-R Service Manual

    KIA Niro EV / Hybrid (SG2) - (2021-2023) - Owner's manual

    © 2017-2024 Copyright www.tochr.net
    0.0131