Lexus ES manuals

Lexus ES: Brake Pressure Control Solenoid "A" Control Circuit Short to Battery (C13C012,...,C13C049)

Lexus ES (XZ10) Service Manual / Brake / Brake Control / Dynamic Control Systems / Electronically Controlled Brake System (for Gasoline Model) / Brake Pressure Control Solenoid "A" Control Circuit Short to Battery (C13C012,...,C13C049)

DESCRIPTION

The ABS solenoid relay and master cylinder cut solenoid valves are built into the brake actuator assembly.

Depending on the operating conditions, the master cylinder cut solenoid valves regulate the brake fluid pressure generated by the pump motor.

When this DTC is stored, the fail-safe function operates and the ABS solenoid relay is turned off to prevent the master cylinder cut solenoid valves from operating.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

C13C012

Brake Pressure Control Solenoid "A" Control Circuit Short to Battery

A short to +B in the master cylinder cut solenoid circuit is detected during the self test.

Skid control ECU (brake actuator assembly)

C13C014

Brake Pressure Control Solenoid "A" Control Circuit Short to Ground or Open

An open or short in the master cylinder cut solenoid circuit is detected during the self test.

Skid control ECU (brake actuator assembly)

C13C01C

Brake Pressure Control Solenoid "A" Control Circuit Voltage Out of Range

  • A current leak in the master cylinder cut solenoid circuit is detected during the self test.
  • The master cylinder cut solenoid valve operation request signal and master cylinder cut solenoid valve operation feedback signal do not match for a certain period of time.

Skid control ECU (brake actuator assembly)

C13C01E

Brake Pressure Control Solenoid "A" Control Circuit Resistance Out of Range

An abnormal resistance in the master cylinder cut solenoid circuit is detected during the self test.

Skid control ECU (brake actuator assembly)

C13C049

Brake Pressure Control Solenoid "A" Control Internal Electronic Failure

An internal malfunction in the master cylinder cut solenoid circuit is detected during the self test.

Skid control ECU (brake actuator assembly)

DTC Detection Conditions: C13C014
 

Vehicle Condition

Pattern 1

Pattern 2

Diagnosis Condition

-

-

-

Malfunction Status

An open in the master cylinder cut solenoid circuit is detected during the self test.

-

A short in the master cylinder cut solenoid circuit is detected during the self test.

-

Detection Time

-

-

Number of Trips

1 trip

1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.

DTC Detection Conditions: C13C01C
 

Vehicle Condition

Pattern 1

Pattern 2

Diagnosis Condition

-

-

-

Malfunction Status

A current leak in the master cylinder cut solenoid circuit is detected during the self test.

-

The master cylinder cut solenoid valve operation request signal and master cylinder cut solenoid valve operation feedback signal do not match for a certain period of time.

-

Detection Time

-

-

Number of Trips

1 trip

1 trip

HINT:

DTC will be output when conditions for either of the patterns in the table above are met.

CAUTION / NOTICE / HINT

NOTICE:

After replacing the skid control ECU (brake actuator assembly), perform acceleration sensor zero point calibration and store system information memorization.

Click here

PROCEDURE

1.

REPLACE BRAKE ACTUATOR ASSEMBLY

(a) Replace the brake actuator assembly.

Click here

NEXT

END

READ NEXT:

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SEE MORE:

 Precaution

PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected. System Name See Procedure Lane Control System (for Gasoline Model)

 Customize Parameters

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