Toyota Yaris: Lane Tracing Assist System / Steering Pad Switch Circuit

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / Cruise Control / Lane Tracing Assist System / Steering Pad Switch Circuit

DESCRIPTION

The forward recognition camera receives LTA main switch signals from the steering pad switch assembly.

WIRING DIAGRAM

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the forward recognition camera, always 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 a DTC may be stored.
  • When the forward recognition camera is replaced with a new one or the windshield glass is replaced or removed/installed, make sure to read Before Starting Adjustment, then perform optical axis alignment for the forward recognition camera and clear the vehicle control history for each system.

    HINT:

    Forward recognition camera axis alignment can be performed by using either One Time Recognition, Sequential Recognition or Driving Adjustment.

    One time recognition: Click here

    Sequential recognition: Click here

    Driving Adjustment: Click here

  • During the steering pad switch assembly check, check the precautions for the airbag system since the horn button assembly is removed during servicing. (installation/removal of parts, checks, replacement, etc.)

    Click here

PROCEDURE

1.

READ VALUE USING GTS (LDA CONTROL)

(a) Read the Data List according to the display on the GTS.

Chassis > Lane Control > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

LDA Control

Whether lane tracing assist system control is permitted or not

Prohibit or Permit

Prohibit: Lane tracing assist system control not possible

Permit: Lane tracing assist system control possible

-

Chassis > Lane Control > Data List

Tester Display

LDA Control

Result

Proceed to

Data List value changes when LTA Main Switch is operated

A

Data List value does not change when LTA Main Switch is operated

B

A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

B

2.

INSPECT STEERING PAD SWITCH ASSEMBLY

Click here

NG

REPLACE STEERING PAD SWITCH ASSEMBLY

OK

3.

INSPECT SPIRAL CABLE SUB-ASSEMBLY

Click here

NG

REPLACE SPIRAL CABLE SUB-ASSEMBLY

OK

4.

CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - FORWARD RECOGNITION CAMERA)

(a) Disconnect the H60 spiral cable sub-assembly connector.

(b) Disconnect the V10 forward recognition camera connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

H60-6 (DIST) - V10-3 (LKSW)

Always

Below 1 Ω

H60-6 (DIST) or V10-3 (LKSW) - Body ground

Always

10 kΩ or higher

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

5.

CHECK HARNESS AND CONNECTOR (SPIRAL CABLE SUB-ASSEMBLY - ECM)

(a) Disconnect the H60 spiral cable sub-assembly connector.

(b) Disconnect the A106 ECM connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

H60-2 (ECC) - A106-28 (ECCS)

Always

Below 1 Ω

H60-2 (ECC) or A106-28 (ECCS) - Body ground

Always

10 kΩ or higher

OK

REPLACE FORWARD RECOGNITION CAMERA

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

    Internal Control Module Software Incompatibility Not Programmed (U030051,U030057)

    DESCRIPTION The forward recognition camera receives vehicle information from the ECM via the CAN communication line. If the forward recognition camera cannot confirm the vehicle information sent from the ECM, the forward recognition camera stores DTC U030051...

    Indicator Circuit

    DESCRIPTION The forward recognition camera sends indicator illumination request signals to the combination meter assembly via CAN communication. CAUTION / NOTICE / HINT NOTICE: When replacing the combination meter assembly, always replace it with a new one...

    Other information:

    Toyota Yaris XP210 (2020-2022) Owner's Manual: Identification Numbers


    Vehicle Information Labels Vehicle Identification Number The vehicle identification number legally identifies your vehicle. The number is on a plate attached to the cowl panel located on the left corner of the dashboard. This plate can easily be seen through the windshield...

    Toyota Yaris XP210 (2020-2022) Reapir and Service Manual: Left Rear Wheel Speed Sensor Signal Has Too Many Pulses (C050C3A,C05123A)


    DESCRIPTION Refer to DTC C050C1F. Click here DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from C050C3A Left Rear Wheel Speed Sensor Signal Has Too Many Pulses When not in Dealer Mode (Signal Check) or Inspection Mode, the output of the speed sensor detected by the skid control ECU (brake actuator assembly) is too high for 5 second or more...

    Categories

    Liftgate/Trunk Lid

    WARNING

    Never allow a person to ride in the luggage compartment/trunk

    Allowing a person to ride in the luggage compartment/trunk is dangerous. The person in the luggage compartment/trunk could be seriously injured or killed during sudden braking or a collision.

    Do not drive with the liftgate/trunk lid open

    read more

     
    Copyright © 2022 www.toyaris4.com