Toyota CH-R Service Manual: Acceleration Sensor Malfunction (C1420)

DESCRIPTION

This DTC is stored when the skid control ECU (brake actuator assembly) detects an abnormality in the difference between the acceleration sensor value and the control value estimated based on the yaw rate sensor, steering angle sensor and speed sensor signals.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C1420

Acceleration Sensor Malfunction

The difference between the acceleration sensor value and the control value estimated inside the skid control ECU (brake actuator assembly) is abnormal.

  • Sensor installation
  • Acceleration sensor (airbag sensor assembly)

PROCEDURE

1.

CHECK AIRBAG SENSOR ASSEMBLY INSTALLATION

(a) Check that the yaw rate and acceleration sensor (airbag sensor assembly) has been installed properly.

Click here

OK:

The airbag sensor assembly is tightened to the specified torque.

The airbag sensor assembly is not be installed in a tilted position.

HINT:

If troubleshooting has been carried out according to Problem Symptoms Table, refer back to the table and proceed to the next step before replacing parts.

Click here

OK

REPLACE AIRBAG SENSOR ASSEMBLY

NG

INSTALL AIRBAG SENSOR ASSEMBLY CORRECTLY

    Acceleration Sensor Internal Circuit (C1419,C1435)
    DESCRIPTION These DTCs are stored when the skid control ECU (brake actuator assembly) receives an internal malfunction signal from the yaw rate and acceleration sensor (airbag sensor assembly). ...

    Open in Stop Light Switch Circuit (C1425)
    DESCRIPTION The skid control ECU (brake actuator assembly) receives stop light switch signals and uses them to determine whether or not the brakes are applied. The skid control ECU (brake actuator ...

    Other materials:

    Toyota CH-R Service Manual > Audio And Visual System(for Radio And Display Type): Main Body ECU Vehicle Information Reading/Writing Process Malfunction (B15F6)
    DESCRIPTION This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the audio and visual system vehicle customization screen. HINT: The main body ECU (multiplex network body ECU) controls the items for the following systems that ar ...

    Toyota CH-R Service Manual > Blower Unit(for Denso Made): Disassembly
    DISASSEMBLY PROCEDURE 1. PRECAUTION NOTICE: Make sure to perform initialization after replacing the No. 1 blower damper servo sub-assembly. If initialization is not performed, the air conditioner unit assembly will not perform properly as the air conditioning amplifier assembly will not be ...

    © 2017-2020 Copyright www.tochr.net
    0.0164