LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Mitsubishi >> 2012 >> i-MiEV ES >> Repair and Diagnosis (Single Page) >> Brakes >> Traction Control >> Active Stability Control System (ASC) - With Diagnostics >> Diagnosis >> Diagnostic Function >> Fail-Safe Function
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fail-Safe Function

ASC-ECU constantly monitors the input and output signals. If an error is detected in the system, ASC-ECU sends a fail signal and the corresponding indicator light is illuminated or blinks. Various controls are processed depending on the cause of malfunction as shown in following tables:

ILLUMINATION CONDITION OF WARNING LIGHT IN CASE OF FAILURE

DTC Item Brake warning light ABS warning light ASC warning light
C1200 Abnormality in FR wheel speed sensor circuit Extinguished(1) Illuminates Illuminates
C1205 Abnormality in FL wheel speed sensor circuit
C1210 Abnormality in RR wheel speed sensor circuit
C1215 Abnormality in RL wheel speed sensor circuit
C1201 Abnormality in FR wheel speed sensor signal
C1206 Abnormality in FL wheel speed sensor signal
C1211 Abnormality in RR wheel speed sensor signal
C1216 Abnormality in RL wheel speed sensor signal
C1225 Wheel speed sensor malfunction (output signal malfunction) Illuminates Illuminates Illuminates
C1226 Abnormality in FR wheel inlet valve system Illuminates Illuminates Illuminates
C1236 Abnormality in FL wheel inlet valve system
C1246 Abnormality in RR wheel inlet valve system
C1256 Abnormality in RL wheel inlet valve system
C1231 Abnormality in FR wheel outlet valve system Illuminates Illuminates Illuminates
C1241 Abnormality in FL wheel outlet valve system
C1251 Abnormality in RR wheel outlet valve system
C1261 Abnormality in RL wheel outlet valve system
C1266 Abnormality in pump motor (stuck) Illuminates Illuminates Illuminates
C1273 Abnormality in pump motor relay (stuck off)
C1274 Abnormality in pump motor relay (stuck on)
C1276 Abnormality in valve relay system Illuminates Illuminates Illuminates
C1278 Abnormality in valve relay system (stuck off)
C1279 Abnormality in valve relay system (stuck on) Illuminates Illuminates Illuminates
C1300 Abnormality in FR/RL cut valve system Illuminates Illuminates Illuminates
C1305 Abnormality in FR/RL suction valve system
C1310 Abnormality in FL/RR cut valve system
C1315 Abnormality in FL/RR suction valve system
C1340 Abnormality in stoplight switch error Extinguished Illuminates Illuminates
C1364 Brake fluid pressure sensor malfunction Extinguished Illuminates Illuminates
C1366 Lateral G sensor signal malfunction Extinguished Extinguished Illuminates
C1371 Yaw rate sensor signal malfunction Extinguished Extinguished Illuminates
C1385 Yaw rate sensor function decrease Extinguished Extinguished Illuminates
C1387 Lateral G-sensor function decrease Extinguished Extinguished Illuminates
C1394 Steering wheel sensor neutral point not learned Extinguished Extinguished Illuminates
C1396 Torque input refusal Extinguished Extinguished Illuminates
C139A Motor torque fail Extinguished Extinguished Illuminates
C1505 Steering wheel sensor malfunction Extinguished Extinguished Illuminates
C1555 Output error in steering wheel sensor Extinguished Extinguished Illuminates
C1607 Abnormality in ASC-ECU Extinguished Illuminates Illuminates
C1621 G and yaw rate sensor incorrect attachment Extinguished Illuminates Illuminates
C1860 Abnormality in battery voltage (high voltage) 18.0 ± 1.0 V or more Illuminates Illuminates Illuminates
C1861(2) Abnormality in battery voltage (low voltage) 9.7 ± 0.3 V or less Illuminates Illuminates Illuminates
C1864 Abnormality in G and yaw rate sensor operation voltage Extinguished Extinguished Illuminates
U1073 Bus-off Extinguished Illuminates Illuminates
U1100 EV-ECU CAN timeout (1) Extinguished Extinguished Illuminates
U1104 SAS CAN timeout/Not equipped Extinguished Extinguished Illuminates
U1105 G and yaw rate sensor CAN timeout/Not equipped Extinguished Extinguished Illuminates
U1108 Meter CAN timeout/Not equipped Extinguished Illuminates Illuminates
U1109 ETACS CAN timeout/Not equipped Extinguished Illuminates Illuminates
U111B EMCU CAN timeout Extinguished Extinguished Illuminates
U1128 Meter (CAN message) Extinguished Illuminates Illuminates
U1190 No receive fault detect signal Extinguished Illuminates Illuminates
U1200 SAS parity error Extinguished Extinguished Illuminates
U1201 Yaw rate sensor parity error Extinguished Extinguished Illuminates
U1204 SAS message counter error Extinguished Extinguished Illuminates
U1205 G and yaw rate message counter error Extinguished Extinguished Illuminates
U1207 Invalid data received from EV ECU Extinguished Extinguished Illuminates
U1406 Throttle position signal error Extinguished Extinguished Illuminates
U142A Torque request signal error Extinguished Extinguished Illuminates
U1430 Drive demand torque signal error Extinguished Extinguished Illuminates
U1426 Motor speed signal error Extinguished Extinguished Illuminates
U1427 Motor torque signal error Extinguished Extinguished Illuminates
(1) Turns ON when two or more wheels are faulty.
(2) This DTC is not set within the vehicle speed of 6 km/h (4 mph) or less.
UNDER EBD, ABS AND TCL/ASC CONTROL IN CASE OF FAILURE

DTC Item EBD control ABS control TCL/ASC control
C1200 Abnormality in FR wheel speed sensor circuit Executed (Prohibited when two or more wheels are faulty.)(1) Prohibited Prohibited
C1205 Abnormality in FL wheel speed sensor circuit
C1210 Abnormality in RR wheel speed sensor circuit
C1215 Abnormality in RL wheel speed sensor circuit
C1201 Abnormality in FR wheel speed sensor signal
C1206 Abnormality in FL wheel speed sensor signal
C1211 Abnormality in RR wheel speed sensor signal
C1216 Abnormality in RL wheel speed sensor signal
C1225 Wheel speed sensor malfunction (output signal malfunction) Prohibited Prohibited Prohibited
C1226 Abnormality in FR wheel inlet valve system Prohibited Prohibited Prohibited
C1236 Abnormality in FL wheel inlet valve system
C1246 Abnormality in RR wheel inlet valve system
C1256 Abnormality in RL wheel inlet valve system
C1231 Abnormality in FR wheel outlet valve system Prohibited Prohibited Prohibited
C1241 Abnormality in FL wheel outlet valve system
C1251 Abnormality in RR wheel outlet valve system
C1261 Abnormality in RL wheel outlet valve system
C1266 Abnormality in pump motor (stuck) Prohibited Prohibited Prohibited
C1273 Abnormality in pump motor relay (stuck off)
C1274 Abnormality in pump motor relay (stuck on)
C1276 Abnormality in valve relay system Prohibited Prohibited Prohibited
C1278 Abnormality in valve relay system (stuck off)
C1279 Abnormality in valve relay system (stuck on)
C1300 Abnormality in FR/RL cut valve system Prohibited Prohibited Prohibited
C1305 Abnormality in FR/RL suction valve system
C1310 Abnormality in FL/RR cut valve system
C1315 Abnormality in FL/RR suction valve system
C1340 Abnormality in stoplight switch error Executed Prohibited Prohibited
C1364 Brake fluid Pressure sensor malfunction Executed Prohibited Prohibited
C1366 Lateral G sensor signal malfunction Executed Executed Prohibited
C1371 Yaw rate sensor signal malfunction Executed Executed Prohibited
C1385 Yaw rate sensor function decrease Executed Executed Prohibited
C1387 Lateral G-sensor function decrease Executed Executed Prohibited
C1394 Steering wheel sensor neutral point not learned Executed Executed Prohibited
C1396 Torque input refusal Executed Executed Prohibited
C139A Motor torque fail Executed Executed Prohibited
C1505 Steering wheel sensor malfunction Executed Executed Prohibited
C1555 Output error in steering wheel sensor Executed Executed Prohibited
C1607 Abnormality in ASC-ECU Executed Prohibited Prohibited
C1621 G and yaw rate sensor incorrect attachment Executed Prohibited Prohibited
C1860 Abnormality in battery voltage (high voltage) 18.0 ± 1.0 V or more Prohibited Prohibited Prohibited
C1861(2) Abnormality in battery voltage (low voltage) 9.7 ± 0.3 V or less Prohibited Prohibited Prohibited
C1864 Abnormality in G and yaw rate sensor operation voltage Executed Executed Prohibited
U1073 Bus-off Executed Prohibited Prohibited
U1100 EV-ECU CAN timeout (1) Executed Executed Prohibited
U1104 SAS CAN timeout/Not equipped Executed Executed Prohibited
U1105 G and yaw rate sensor CAN timeout/Not equipped Executed Executed Prohibited
U1108 Meter CAN timeout/Not equipped Executed Prohibited Prohibited
U1109 ETACS CAN timeout/Not equipped Executed Prohibited Prohibited
U111B EMCU CAN timeout Executed Executed Prohibited
U1128 Meter (CAN message) Executed Prohibited Prohibited
U1190 No receive fault detect signal Executed Prohibited Prohibited
U1200 SAS parity error Executed Executed Prohibited
U1201 Yaw rate sensor parity error Executed Executed Prohibited
U1204 SAS message counter error Executed Executed Prohibited
U1205 G and yaw rate message counter error Executed Executed Prohibited
U1207 Invalid data received from EV ECU Executed Executed Prohibited
U1406 Throttle position signal error Executed Executed Prohibited
U142A Torque request signal error Executed Executed Prohibited
U1430 Drive demand torque signal error Executed Executed Prohibited
U1426 Motor speed signal error Executed Executed Prohibited
U1427 Motor torque signal error Executed Executed Prohibited
(1) Executed when two or more wheels are faulty.
(2) This DTC is not set within the vehicle speed of 6 km/h (4 mph) or less.
scientia non olet · About LEMON Manuals