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VEHICLE STABILITY CONTROL SYSTEM, Diagnostic DTC:C146E, C146F

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DTC Code DTC Name
C146E Open in ABS Solenoid Relay Circuit
C146F Short in ABS Solenoid Relay Circuit
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DESCRIPTION

The solenoid relay is built into the master cylinder solenoid.

This relay supplies power to each solenoid. If the initial check is OK, after the ignition switch is turned to ON, the relay turns on.

DTC Code DTC Detection Condition Trouble Area
C146E

Either condition is met:


  1. Both of the following conditions continue for at least 0.2 seconds.


    1. IG voltage is between 9.5 and 17 V.

    2. The relay contact is open when the relay is on.

  3. Both of the following conditions continue for at least 0.2 seconds.


    1. IG voltage is 9.5 V or less when the relay is on.

    2. The relay contact remains open.

  • ABS2 fuse

  • Solenoid relay circuit

  • Master cylinder solenoid
C146F

The following condition continues for at least 0.2 seconds.


  • The relay contact is closed immediately after turning the ignition switch ON when the relay is off.
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WIRING DIAGRAM

Refer to DTCs C1225, C1226, C1227, C1228, C1468, C1469, C146A and C146B (Click here).

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INSPECTION PROCEDURE

Note:

  • After replacing the master cylinder solenoid, perform zero point calibration and store the system information (Click here).

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

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PROCEDURE


  1. Click here

    CHECK HARNESS AND CONNECTOR (+BS TERMINAL)


    1. Turn the ignition switch off.

    2. Disconnect the skid control ECU (master cylinder solenoid) connector.

    3. A015D41E74

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      A24-31 (+BS) - Body ground Always 11 to 14 V
      Table 1. Text in Illustration
      *a

      Front view of wire harness connector

      (to Skid Control ECU [Master Cylinder Solenoid])

  2. Click here

    CHECK HARNESS AND CONNECTOR (GND1, GND2 AND GND3 TERMINAL)


    1. A0157GLE58

      Turn the ignition switch off.

    2. Disconnect the skid control ECU (master cylinder solenoid) connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A24-1 (GND1) - Body ground Always Below 1 Ω
      A24-32 (GND2) - Body ground Always Below 1 Ω
      A25-4 (GND3) - Body ground Always Below 1 Ω
      Table 2. Text in Illustration
      *a

      Front view of wire harness connector

      (to Skid Control ECU [Master Cylinder Solenoid])

  3. Click here

    RECONFIRM DTC

    Tip:

    These codes are stored when a problem is detected in the master cylinder solenoid.

    The solenoid relay is in the master cylinder solenoid.

    Therefore, solenoid relay circuit inspections and relay unit inspections cannot be performed. Be sure to check if any DTC is output before replacing the master cylinder solenoid.


    1. Clear the DTCs (Click here).

    2. Turn the ignition switch off.

    3. Drive the vehicle at a speed of approximately 32 km/h (20 mph) or more for 60 seconds or more.

    4. Check if the same DTCs are output (Click here).

      Tip:

      Reinstall the sensors, connectors, etc. and restore the previous vehicle conditions before rechecking for DTCs.

      Table 3. Result
      Result Proceed to
      DTC is not output A
      DTC is output (for LHD) B
      DTC is output (for RHD) C

  4. Click here

    REPLACE MASTER CYLINDER SOLENOIDClick here

  5. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. Click here

    CHECK FOR INTERMITTENT PROBLEMSClick here

  8. Click here

    REPLACE MASTER CYLINDER SOLENOIDClick here