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Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> Steering >> Electronic Steering >> On-Board Diagnostic [Steering System] >> Electro Hydraulic Power Assist Steering (EHPAS) On-Board Diagnosis >> Fail-safe Function Table

Fail-safe Function Table

DTC Fail-safe control status
M-MDS
B1238 Control disabled
B1317 Controlled motor speed is decreased to 391 rpm per s until it is set at 0 rpm, and control is disabled.
B1318 Controlled motor speed is decreased to 391 rpm per s until it is set at 0 rpm, and control is disabled.
B1342 Control disabled
B1352 Control enabled
B2477 Control enabled
C1099 Control disabled
C1938 Controlled steering speed is decreased to 100 degree per s until it is set at 0 degree, and control continues.
U0073 Motor is stopped: Maintained at condition when stopped.
Motor is rotating: Controlled vehicle speed is increased to 20 km/h {12 mph} per s until it is set at 200 km/h {124 mph}, engine speed is set at 1,000 rpm, and control continues.
U0100
  • Vehicle speed signal malfunction
    • Motor is stopped: Maintained at condition when stopped. After the motor is restarted, vehicle speed is set at 200 km/h {124 mph}, and control continues.
    • Motor is rotating: Controlled vehicle speed is increased to 20 km/h {12 mph} per s until it is set at 200 km/h {124 mph}, and control continues.
  • Engine speed signal malfunction
    • Motor is stopped: Maintained at condition when stopped. After the motor is restarted, engine speed is set at 1,000 rpm, and control continues.
    • Motor is rotating: Controlled engine speed is set at 1,000 rpm, and control continues.
U0140 Controlled steering speed is decreased to 100 degree per s until it is set at 0 degree, and control continues.
U0155 Control enabled
U2023 Motor is stopped: Engine speed and vehicle speed assimilation stops. After the motor is restarted, vehicle speed is set at 200 km/h {124 mph} and engine speed is set at 1,000 rpm, and control continues.
Motor is rotating: Controlled vehicle speed is increased to 20 km/h {12 mph} per s until it is set at 200 km/h {124 mph}, engine speed is set at 1,000 rpm, and control continues.