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Home >> Subaru >> 2019 >> BRZ Series.Gray >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 3) >> EFI System (FA20) >> DTC P2158: Vehicle Speed Sensor "A" >> Circuit description >> Notes
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Circuit description: Notes

Skid control computer converts the vehicle speed pulse signal which is output from the ABS speed sensors on each wheel into vehicle speed signal. This signal is input to the engine control computer via CAN communication. The engine control computer determines vehicle speed based on this CAN communication data.

DTC No. DTC detection conditions Suspected parts
P2158 Vehicle speed signal from drive wheels is 300 km/h {186.42 MPH} or more for 2.5 seconds or more. (1 trips detection logic)  
  • Open/short circuit in wheel speed signal circuit
  • Brake actuator ASSY ECM