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Home >> Mazda >> 2013 >> 5 Grand Touring >> Repair and Diagnosis >> Steering >> Electronic Steering >> On-Board Diagnostic [Steering System] >> DTC C1938 >> Notes

DTC C1938: Notes

DTC C1938 Signal error from BCM
DETECTION CONDITION 
  • Error detected in signal from BCM via CAN communication
FAIL-SAFE FUNCTION 
  • Controlled steering speed is decreased to 100 degree per s until it is set at 0 degree, and control continues.
  • Power steering malfunction indicator light: Illuminated
POSSIBLE CAUSE 
  • BCM malfunction
  • EHPAS CM malfunction
SYSTEM WIRING DIAGRAM  -
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