FixVault

Fail-safe Function Table

WARNING: This page is about a different car, the 2014 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
FAIL-SAFE FUNCTION CHART

DTC Fail-safe control status
M-MDS
C200B:02 Control disabled
C200B:1C Control disabled
C200B:49 Control disabled
C200B:62 Control disabled
C200B:85 Control disabled
C200C:1C Control disabled
C200D:1C Control disabled
C200D:64 Control disabled
U0001:88 Control enabled
U0100:00 Control is maintained by gradually changing the controlled vehicle speed and setting it to 120 km/h {74.6 mph} 
U0121:00 Control enabled
U0155:00 Control enabled
U0338:00 Control enabled
U0401:00
  • Vehicle speed signal malfunction
    • Control is maintained by gradually changing the controlled vehicle speed and setting it to 120 km/h {74.6 mph} 
  • Engine speed signal malfunction
    • Control enabled
  • i-stop status signal malfunction
    • EPS i-stop control is not operated, and normal control is maintained
U0415:00 Control enabled
U0515:00 Control enabled
U2011:18 Control disabled
U2011:19 Control disabled
U2011:1C Control disabled
U2011:61 Control disabled
U2011:62 Control disabled
U2011:64 Control disabled
U2011:72
  • Phase 1 open circuit malfunction is detected in the EPS motor
    • Control is maintained in the backup control
  • Other malfunction detected in EPS motor internal circuit
    • Control disabled
U2300:54 Control enabled
U2300:55 Control enabled
U2300:56 Control enabled
U3000:16 Control disabled
U3000:1C Control disabled
U3000:28 Control disabled
U3000:41 Control disabled
U3000:44 Control disabled
U3000:46 Control is maintained in fail mode
U3000:47 Control disabled
U3000:49 Control disabled
U3000:4B Control is maintained in fail mode
U3000:61 Control disabled
U3000:62 Control disabled
U3000:73 Control disabled
U3000:96 Control disabled
U3003:16 Control is maintained by gradually decreasing the motor control current
However, control is inhibited if the power supply voltage is the specified value of less.
U3003:17 Control disabled