ELECTRONICALLY CONTROLLED BRAKE SYSTEM, Diagnostic DTC:42 and 45

DTC Code DTC Name
42 Electronically Controlled Brake System Malfunction
45 Electronically Controlled Brake System Malfunction

DESCRIPTION

These DTCs are stored if the ABS and/or VSC system detects a malfunction in the electronically controlled brake system.

DTC No.

Detection Item

INF Code

DTC Detection Condition

Trouble Area

Note

42

Electronically Controlled Brake System Malfunction

-

Malfunction in the electronically controlled brake system.

Electronically controlled brake system

ABS DTC

45

Electronically Controlled Brake System Malfunction

-

Malfunction in the electronically controlled brake system.

Electronically controlled brake system

VSC DTC

CAUTION / NOTICE / HINT

Note:

When replacing the skid control ECU (brake booster with master cylinder assembly), perform initialization and calibration of the linear solenoid valve.

Click here

PROCEDURE

  1. CHECK ELECTRONICALLY CONTROLLED BRAKE SYSTEM

    1. Clear the DTCs.

      Click here

      Chassis > ABS/VSC/TRC > Clear DTCs

    2. Turn the power switch on (READY).

    3. Drive the vehicle at a speed of approximately 40 km/h (25 mph) or more for 60 seconds or more.

    4. Check if electronically controlled brake system DTCs are output.

      Click here

      Chassis > ABS/VSC/TRC > Trouble Codes

    Result

    Result

    Proceed to

    Electronically controlled brake system DTCs are not output.

    A

    Electronically controlled brake system DTCs are output.

    B
    B

    REPAIR CIRCUITS INDICATED BY OUTPUT DTCS

    Click here

    A

  2. RECONFIRM DTC

    1. Turn the power switch off.

    2. Clear the DTCs.

      Click here

      Chassis > ABS/VSC/TRC > Clear DTCs

    3. Turn the power switch on (READY).

    4. Drive the vehicle at a speed of approximately 40 km/h (25 mph) or more for 60 seconds or more.

    5. Check if the same DTC is output.

      Click here

      Chassis > ABS/VSC/TRC > Trouble Codes

    Result

    Result

    Proceed to

    DTCs 42 and 45 are not output.

    A

    DTCs 42 and/or 45 are output.

    B
    A

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick here

    B

    REPLACE BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY

    for LHD:Click here

    for RHD:Click here