Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2017 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Read Freeze Frame Data
- On «Start» display, select «Diagnosis».
- On «Vehicle selection» display, input the vehicle information and select «Confirmed».
- On «Main Menu» display, select «Each System».
- On «Select System» display, select «Brake Control System».
- On «Select Function» display, select «DTC».
- On «DTC» display, select «FFD».
- Models without EyeSight
Display Contents to be displayed Unit of measure Classification Recorded trouble code is displayed. - Trip Count Total number of ignition switch ON times Count Counter - Time Count [msec] Elapsed time after ignition switch ON ms FR Wheel Speed Wheel speed detected by front ABS wheel speed sensor RH is displayed. km/h or MPH FL Wheel Speed Wheel speed detected by front ABS wheel speed sensor LH is displayed. km/h or MPH RR Wheel Speed Wheel speed detected by rear ABS wheel speed sensor RH is displayed. km/h or MPH RL Wheel Speed Wheel speed detected by rear ABS wheel speed sensor LH is displayed. km/h or MPH Vehicle Speed Vehicle speed calculated by VDC control module is displayed. km/h or MPH Steering Angle Sensor Steering angle detected by steering angle sensor is displayed. deg Yaw Rate Sensor Angle of the vehicle detected by yaw rate sensor is displayed. deg/s Master Cylinder Pressure Sensor Brake fluid pressure detected by pressure sensor is displayed. bar Longitudinal G Sensor Vehicle longitudinal acceleration detected by longitudinal G sensor is displayed. m/s2 Lateral G Sensor Vehicle lateral acceleration detected by lateral G sensor is displayed. m/s2 Ignition Voltage Voltage supplied to VDCCM & H/U is displayed. V Acceleration Pedal Position Accelerator pedal opening angle is displayed. % Engine Speed Engine speed on malfunction occurrence is displayed. rpm Steering Angle Flag Whether the absolute angle of the steering angle sensor was determined is displayed. Recognized or No recognition EBD Control Flag EBD operation condition is displayed. ON or OFF ABS Control Flag ABS operation condition is displayed. ON or OFF TCS Control Flag TCS operation condition is displayed. ON or OFF VDC Control Flag VDC operation condition is displayed. ON or OFF E/G Torque Down Control Stop Flag Engine control command signal is displayed. 1 or 0 E/G torques up Control Stop Flag Engine control command signal is displayed. 1 or 0 OFF Switch Detection ON/OFF condition of the VDC operated by the driver is displayed. ON or OFF Brake Light Switch Brake ON/OFF is displayed. ON or OFF Clutch switch Clutch ON/OFF is displayed. (MT model) ON or OFF Reverse Signal Reverse gear ON/OFF is displayed. (MT model) ON or OFF - Models with EyeSight
Display Contents to be displayed Unit of measure Classification Recorded trouble code is displayed. - Trip Count Total number of ignition switch ON times Count Counter - Time Count [msec] Elapsed time after ignition switch ON ms FR Wheel Speed Wheel speed detected by front ABS wheel speed sensor RH is displayed. km/h or MPH FL Wheel Speed Wheel speed detected by front ABS wheel speed sensor LH is displayed. km/h or MPH RR Wheel Speed Wheel speed detected by rear ABS wheel speed sensor RH is displayed. km/h or MPH RL Wheel Speed Wheel speed detected by rear ABS wheel speed sensor LH is displayed. km/h or MPH Vehicle Speed Vehicle speed calculated by VDC control module is displayed. km/h or MPH Steering Angle Sensor Steering angle detected by steering angle sensor is displayed. deg Yaw Rate Sensor Angle of the vehicle detected by yaw rate sensor is displayed. deg/s Master Cylinder Pressure Sensor Brake fluid pressure detected by pressure sensor is displayed. bar Longitudinal G Sensor Vehicle longitudinal acceleration detected by longitudinal G sensor is displayed. m/s2 Lateral G Sensor Vehicle lateral acceleration detected by lateral G sensor is displayed. m/s2 Ignition Voltage Voltage supplied to VDC control module is displayed. V Acceleration Pedal Position Accelerator pedal opening angle is displayed. % Engine Speed Engine speed on malfunction occurrence is displayed. rpm FL wheel cylinder pressure sensor output FL wheel cylinder brake fluid pressure detected by pressure sensor is displayed. bar FR wheel cylinder pressure sensor output FR wheel cylinder brake fluid pressure detected by pressure sensor is displayed. bar Steering Angle Flag Whether the absolute angle of the steering angle sensor was determined is displayed. Recognized or No recognition EBD Control Flag EBD control condition is displayed. ON or OFF ABS Control Flag ABS control condition is displayed. ON or OFF TCS Control Flag TCS control condition is displayed. ON or OFF VDC Control Flag VDC control condition is displayed. ON or OFF E/G Torque Down Control Stop Flag Engine control command signal is displayed. 1 or 0 Stop-lamp relay drive signal Brake light relay driving signal is displayed. ON or OFF E/G torques up Control Stop Flag Engine control command signal is displayed. 1 or 0 OFF Switch Detection ON/OFF condition of the VDC operated by the driver is displayed. ON or OFF Brake Light Switch Brake ON/OFF is displayed. ON or OFF Engine Torque Engine torque is displayed. N.m Ambient Temp Sensor Ambient temperature is displayed. °C Manual Parking Operation Parking brake operation condition is displayed. ON or OFF Auto Parking Operation Parking brake operation condition is displayed. ON or OFF Parking Operation when driving Parking brake operation condition is displayed. ON or OFF Parking Cancel Parking brake operation condition is displayed. ON or OFF Hill Hold Lamp Hill hold indicator control condition is displayed. ON or OFF IGN Input condition of ignition signal is displayed. ON or OFF Neutral Signal Input condition of neutral signal is displayed. ON or OFF Engine idle flag Engine speed condition is displayed. ON or OFF Door Signal Input condition of door (4 locations) open/close signal is displayed. ON or OFF Driver Seat Belt Signal Input condition of driver's seat belt buckle signal is displayed. ON or OFF NOTE:- Freeze frame data stored at the time of trouble occurrence is shown on the display.
- Each time a trouble occurs, the latest information is stored in the freeze frame data in memory.
- For detailed operation procedures, refer to "Application help".
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.