Toyota Corolla Cross Owners & Service Manuals

Toyota Corolla Cross: Problem Symptoms Table

Toyota Corolla Cross (2022-2024) Service Manual / ADAS & AD / Advanced Driver Assistance System / Front Camera System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

  • If no DTC is output when a diagnosis code check is performed for the front camera system and the CAN communication system, perform diagnosis according to the following symptoms.
  • Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
  • Inspect the fuses and relays related to this system before inspecting the suspected areas below.
Front Camera System

Symptom

Suspected Area

Link

Driving assist switch, +RES switch, - switch, CANCEL switch cannot be operated

Steering pad switch circuit

ECM*1

Hybrid vehicle control ECU*2

Driving assist mode select switch cannot be operated

Steering pad switch circuit

Vehicle-to-vehicle distance switch cannot be operated

Steering pad switch circuit

LTA switch cannot be operated

Steering pad switch circuit

  • *1: for Gasoline Model
  • *2: for HEV Model

    READ NEXT:

     Terminals Of Ecu

    TERMINALS OF ECU NOTICE: DTCs may be output when connectors are disconnected during inspection. Therefore, be sure to clear the DTCs using the GTS once the inspection has been completed.

     Freeze Frame Data

    FREEZE FRAME DATA DESCRIPTION (a) When a front camera system DTC is stored, the forward recognition camera stores the current vehicle (ECU or sensor) state as Freeze Frame Data. CHECK FREEZE FRAM

     Fail-safe Chart

    FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) If the system is malfunctioning, the telltale warning message is displayed on the multi-information display and the system is suspended in accordance with

    SEE MORE:

     High Voltage Power Resource Circuit Short during Ready ON (P1C8449)

    DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU monitors the high-voltage wiring between the HV battery and inverter with converter assembly and detects an open circuit malfunction. HINT: This DTC is differentiated from P1C8349 based on detection timing (after ignition sw

     System Voltage Circuit Short to Ground or Open (P056014)

    MONITOR DESCRIPTION The auxiliary battery supplies electricity to the ECM even when the ignition switch is off. This power allows the ECM to store data such as DTC history, Freeze Frame Data and fuel trim values. If the auxiliary battery voltage falls below a minimum level, the memory is cleared and

    © 2020-2024 Copyright www.tcorollacross.com