DIAGNOSIS FUNCTION


FAIL-SAFE FUNCTION


If any malfunction is detected by the self-diagnostic function, ABS-ECU illuminates the ABS warning lamp and brake warning lamp*, and it disables EBD, ABS and ESS control.
note *: The brake warning lamp is used as EBD control warning lamp.

Under EBD, ABS and ESScontrol in case of failure
Diagnosis code No.
 Item
 Countermeasures for failure
EBD control
 ABS control
 ESS control
C1200
 FR wheel speed sensor (signal open circuit)
    Executed*1
    Prohibited*2

 Prohibited
 Prohibited
C1205
 FL wheel speed sensor (signal open circuit)
C1210
 RR wheel speed sensor (signal open circuit)
C1215
 RL wheel speed sensor (signal open circuit)
C1201
 FR wheel speed sensor signal (signal short circuit)
    Executed*1
    Prohibited*2

 Prohibited
 Prohibited
C1206
 FL wheel speed sensor signal (signal short circuit)
C1211
 RR wheel speed sensor signal (signal short circuit)
C1216
 RL wheel speed sensor signal (signal short circuit)
C1202
 FR wheel speed sensor power circuit (malfunction power circuit)
    Executed*1
    Prohibited*2

 Prohibited
 Prohibited
C1207
 FL wheel speed sensor power circuit (malfunction power circuit)
C1212
 RR wheel speed sensor power circuit (malfunction power circuit)
C1217
 RL wheel speed sensor power circuit (malfunction power circuit)
C1225
 Deviation between wheel speed (abnormality in tyre size)
 Executed
 Prohibited
 Prohibited
C1226
 FR inlet valve
Prohibited
 Prohibited
 Prohibited
C1231
 FR outlet valve
C1236
 FL inlet valve
C1241
 FL outlet valve
C1246
 RR inlet valve
C1251
 RR outlet valve
C1256
 RL inlet valve
C1261
 RL outlet valve
C1266*3
 Motor stuck (motor stick or open circuit)
 Prohibited
 Prohibited
 Prohibited
C1273*3
 Motor drive circuit stuck off (open circuit)
 Prohibited
 Prohibited
 Prohibited
C1274*3
 Motor drive circuit stuck on (short circuit)
 Prohibited
 Prohibited
 Prohibited
C1278
 Valve power circuit stuck off (open circuit)
 Prohibited
 Prohibited
 Prohibited
C1279
 Valve power circuit stuck on (short circuit)
 Prohibited
 Prohibited
 Prohibited
C1340
 Stop lamp switch
 Executed
 Executed
 Executed
C1395
 Incompletion brake fluid filling
 Prohibited
 Prohibited
 Prohibited
C1860
 Power supply high voltage
 Prohibited
 Prohibited
 Prohibited
C1861
 Power supply low voltage
 Prohibited
 Prohibited
 Prohibited
U1073
 Bus-off
 Executed
 Executed
 Executed
U1108
 Meter CAN timeout/ Not equipped
 Executed
 Executed
 Executed
U1109
 ETACS CAN timeout/ Not equipped
 Executed
 Executed
 Executed
U1195
 Coding not completed
 Executed
 Executed
 Executed
U1197
 Coding data unavailable
 Executed
 Executed
 Executed
note
  • *1: Normality on rear wheels (both right or left).
  • *2: Abnormality on rear wheels (both right and left).
  • *3: This diagnosis code is not set within the vehicle speed of 10 km/h or less.