RM35X0E _54 Brake _078667 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0385049 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(w/ VSC OFF Switch)  C12E712  Right Rear Wheel ABS Hold Solenoid Control Circuit Short to Battery  C12E714  Right Rear Wheel ABS Hold Solenoid Control Circuit Short to Ground or Open  C12E71C  Right Rear Wheel ABS Hold Solenoid Control Circuit Voltage Out of Range  C12E71E  Right Rear Wheel ABS Hold Solenoid Control Circuit Resistance Out of Range  C12E749  Right Rear Wheel ABS Hold Solenoid Control Internal Electronic Failure  C12F212  Right Rear Wheel ABS Release Solenoid Control Circuit Short to Battery  C12F214  Right Rear Wheel ABS Release Solenoid Control Circuit Short to Ground or Open  C12F21C  Right Rear Wheel ABS Release Solenoid Control Circuit Voltage Out of Range  C12F21E  Right Rear Wheel ABS Release Solenoid Control Circuit Resistance Out of Range  C12F249  Right Rear Wheel ABS Release Solenoid Control Internal Electronic Failure  


DESCRIPTION

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

The rear solenoid valve RH controls the brake fluid pressure of the rear wheel cylinder RH of the vehicle.

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

DTC No. Detection Item DTC Detection Condition Trouble Area
C12E712 Right Rear Wheel ABS Hold Solenoid Control Circuit Short to Battery A short to +B in the solenoid circuit is detected during the self test. Skid control ECU (brake actuator assembly)
C12E714 Right Rear Wheel ABS Hold Solenoid Control Circuit Short to Ground or Open An open or short in the solenoid circuit is detected during the self test. Skid control ECU (brake actuator assembly)
C12E71C Right Rear Wheel ABS Hold Solenoid Control Circuit Voltage Out of Range
·

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

·

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


Skid control ECU (brake actuator assembly)
C12E71E Right Rear Wheel ABS Hold Solenoid Control Circuit Resistance Out of Range An abnormal resistance in the solenoid circuit is detected during the self test. Skid control ECU (brake actuator assembly)
C12E749 Right Rear Wheel ABS Hold Solenoid Control Internal Electronic Failure An internal malfunction in the solenoid circuit is detected during the self test. Skid control ECU (brake actuator assembly)
C12F212 Right Rear Wheel ABS Release Solenoid Control Circuit Short to Battery A short to +B in the solenoid circuit is detected during the self test. Skid control ECU (brake actuator assembly)
C12F214 Right Rear Wheel ABS Release Solenoid Control Circuit Short to Ground or Open An open or short in the solenoid circuit is detected during the self test. Skid control ECU (brake actuator assembly)
C12F21C Right Rear Wheel ABS Release Solenoid Control Circuit Voltage Out of Range
·

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

·

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


Skid control ECU (brake actuator assembly)
C12F21E Right Rear Wheel ABS Release Solenoid Control Circuit Resistance Out of Range An abnormal resistance in the solenoid circuit is detected during the self test. Skid control ECU (brake actuator assembly)
C12F249 Right Rear Wheel ABS Release Solenoid Control Internal Electronic Failure An internal malfunction in the solenoid circuit is detected during the self test. Skid control ECU (brake actuator assembly)

DTC Detection Conditions: C12E714
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition - - -
Malfunction Status An open in the solenoid circuit is detected during the self test. ○ -
A short in the 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: C12E71C
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition - - -
Malfunction Status A current leak in the solenoid circuit is detected during the self test. ○ -
The solenoid operation request signal and solenoid 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.


DTC Detection Conditions: C12F214
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition - - -
Malfunction Status An open in the solenoid circuit is detected during the self test. ○ -
A short in the 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: C12F21C
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition - - -
Malfunction Status A current leak in the solenoid circuit is detected during the self test. ○ -
The solenoid operation request signal and solenoid 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.

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PROCEDURE