Toyota CH-R Service Manual: Diagnosis System

DIAGNOSIS SYSTEM

CHECK DLC3

(a) Check the DLC3.

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FUNCTION OF WARNING INDICATOR AND MESSAGE

(a) If the pre-collision system is not functioning properly, the driver is warned by the PCS warning light and a warning message displayed on the multi-information display.

Warning Message

Detail

DTC

PCS warning light

"Pre-Collision System Malfunction Visit Your Dealer"

Pre-collision system malfunctioning

Stored

Blinks

"Pre-Collision System Unavailable"

Millimeter wave radar sensor assembly misaligned

Not stored

Illuminated

"Pre-Collision System Unavailable Clean Sensor"

Foreign matter attached to millimeter wave radar sensor assembly

Not stored

Illuminated

"Front Camera Unavailable"

  • Abnormal forward recognition camera voltage
  • Forward recognition camera temperature outside of operational range

Not stored

Illuminates

"Front Camera Vision Blocked. Clean and Demist Windshield"

Foreign matter attached to forward recognition camera or area of windshield in front of forward recognition camera

Not stored

Illuminates

"VSC Turned Off Pre-Collision Brake System Unavailable"

VSC system is disabled

Not stored

Illuminates

PCS Warning Light Illumination Status

PCS Warning Light

Condition

Blinks

ON: 0.5 sec./OFF: 1.5 sec.

Pre-collision system malfunctioning (DTC stored)

Illuminated

Pre-collision system temporarily disabled

Pre-collision system disabled

VSC system disabled

Not illuminated

Other

INITIAL CHECK

(a) An initial check is performed when the ignition switch is off for more than 2 seconds and then turned ON. The initial check consists of a pre-collision system diagnostic check with a duration of approximately 3 seconds.

(b) If a malfunction is detected during the initial check, the PCS warning light in the combination meter assembly will blink and a warning message indicating the pre-collision system is malfunctioning or disabled will be displayed on the multi-information display.

CONSTANT CHECK

(a) The millimeter wave radar sensor assembly constantly monitors the pre-collision system for malfunctions after the ignition switch is turned to ON and the initial check (approximately 3 seconds) has completed.

(b) If a malfunction is detected during the constant check, the PCS warning light in the combination meter assembly will blink and a warning message indicating the pre-collision system is malfunctioning or disabled will be displayed on the multi-information display.

    Terminals Of Ecu
    TERMINALS OF ECU CHECK MILLIMETER WAVE RADAR SENSOR (a) Measure the voltage and resistance according to the value(s) in the table below. HINT: If the result is not as specified, there may be a ...

    Dtc Check / Clear
    DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the ignition switch to ON. (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Pre-Collision ...

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