RM36D0EC _54 Brake _083077 BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS _0402316 ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model) C

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS  ELECTRONICALLY CONTROLLED BRAKE SYSTEM(for Gasoline Model)  C052F14  ABS Pump Motor Supply Voltage Circuit Short to Ground or Open  


DESCRIPTION

The ABS motor relay is built into the brake actuator assembly.

When the skid control ECU (brake actuator assembly) operates ABS, TRC, VSC, brake hold, or brake assist, the ABS motor relay turns ON and drives the motor pump built into the brake actuator assembly.

DTC No. Detection Item DTC Detection Condition Trouble Area
C052F14 ABS Pump Motor Supply Voltage Circuit Short to Ground or Open
·

When the pump motor is turned off after operating, 0.6 V or more is detected at the pump motor for 0.48 seconds or more.

·

The power supply of the ABS motor relay is less than 5 V for 0.15 seconds or more.


Skid control ECU (brake actuator assembly)

DTC Detection Conditions: C052F14
Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition The pump motor is turned off after operating. ○ -
Malfunction Status 0.6 V or more is detected at the pump motor. ○ -
The power supply of the ABS motor relay is less than 5 V. - ○
Detection Time 0.48 seconds or more. 0.15 seconds or more.
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 hereBrake>BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS>ELECTRONICALLY CONTROLLED BRAKE SYSTEM (for Gasoline Model)>UTILITY

·

Before performing troubleshooting, make sure to confirm that the battery voltage is normal.

Click hereGeneral>INTRODUCTION>HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS>HOW TO PROCEED WITH TROUBLESHOOTING

·

The system may store DTC C052F14 due to a drop in battery voltage. If a DTC regarding low system supply power voltage is output at the same time, perform troubleshooting for that DTC first.

·

If the vehicle has stored DTC C052F14 due a drop in battery voltage, it can be cleared by driving the vehicle at a speed of 15 km/h (9 mph) or more for 0.48 seconds or more and then clearing the DTCs using the GTS.