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Fail-Safe Function

If any malfunction is detected by the self-diagnostic function, ABS-ECU illuminates the ABS warning light and brake warning light*, and it disables ABS and EBD control.

NOTE: *: The brake warning light and display are used as EBD control warning light.
ILLUMINATION CONDITION CHART

DTC Item Countermeasures for failure
Brake warning light Brake warning display ABS warning light ABS warning display
C100A Abnormality in FL wheel speed sensor circuit Extinguished(2) Extinguished(2) Illuminated(3) Illuminated(3)
C1015 Abnormality in FR wheel speed sensor circuit
C1020 Abnormality in RL wheel speed sensor circuit
C102B Abnormality in RR wheel speed sensor circuit
C1011 Abnormality in FL wheel speed sensor signal Extinguished(2) Extinguished(2) Illuminated(3) Illuminated(3)
C101C Abnormality in FR wheel speed sensor signal
C1027 Abnormality in RL wheel speed sensor signal
C1032 Abnormality in RR wheel speed sensor signal
C1014 Mutual monitoring of FL wheel speed sensor Extinguished(2) Extinguished(2) Illuminated(3) Illuminated(3)
C101F Mutual monitoring of FR wheel speed sensor
C102A Mutual monitoring of RL wheel speed sensor
C1035 Mutual monitoring of RR wheel speed sensor
C1041 Abnormality in periodical signal for FL wheel speed sensor Extinguished(2) Extinguished(2) Illuminated(3) Illuminated(3)
C1042 Abnormality in periodical signal for FR wheel speed sensor
C1043 Abnormality in periodical signal for RL wheel speed sensor
C1044 Abnormality in periodical signal for RR wheel speed sensor
C1046 FL wheel speed sensor control phase time exceeded Extinguished(2) Extinguished(2) Illuminated(3) Illuminated(3)
C1047 FR wheel speed sensor control phase time exceeded
C1048 RL wheel speed sensor control phase time exceeded
C1049 RR wheel speed sensor control phase time exceeded
C104B Abnormality in FL wheel inlet valve system Illuminates Illuminates Illuminates Illuminates
C104F Abnormality in FR wheel inlet valve system
C1053 Abnormality in RL wheel inlet valve system
C1057 Abnormality in RR wheel inlet valve system
C105F Abnormality in FL wheel outlet valve system Illuminates Illuminates Illuminates Illuminates
C1063 Abnormality in FR wheel outlet valve system
C1067 Abnormality in RL wheel outlet valve system
C105B Abnormality in RR wheel outlet valve system
C2104 Malfunction of valve power supply circuit Illuminates Illuminates Illuminates Illuminates
C1073 Malfunction of motor drive circuit Extinguished Extinguished Illuminated(3) Illuminated(3)
C2116 Abnormality in pump motor power supply voltage Extinguished Extinguished Illuminated(3) Illuminated(3)
C1000 Abnormality in stop light switch circuit Extinguished Extinguished Extinguished Extinguished
C2200 Trouble in ABS-ECU Illuminates Illuminates Illuminates Illuminates
C2100 Battery voltage problem (low voltage) 9.7 ± 0.3 V or less(1) Extinguished Extinguished Illuminates Illuminates
8.0 ± 0.5 V or less (1) Illuminates Illuminates Illuminates Illuminates
C2101 Battery voltage problem (high voltage) 18.0 ± 1.0 V or more Illuminates Illuminates Illuminates Illuminates
C1395 Brake fluid charging incompletion Extinguished Extinguished Flashes (1 Hz) Illuminates
C2203 VIN not written Extinguished Extinguished Illuminates Illuminates
C1608 Implausible diagnosis data Extinguished Extinguished Extinguished Extinguished
U0001 Bus off Extinguished Extinguished Extinguished Extinguished
U0100 Engine time-out error Extinguished Extinguished Extinguished Extinguished
U0141 ETACS time-out error Extinguished Extinguished Extinguished Extinguished
U1415 Variant coding not implemented Extinguished Extinguished Illuminates Illuminates
U1417 Invalid variant coding value (including wrong assembly) Extinguished Extinguished Illuminates Illuminates
NOTE:
(1) This diagnostic trouble code is not stored within the vehicle speed of 12 mph (20 km/h) or less.
(2) Turns ON when two or more wheels are faulty.
(3) Stays ON until the vehicle speed reaches 6 mph (10 km/h) when the ignition switch is turned to ON next time, even if the malfunction is repaired and returns to normal condition.
DTC DESCRIPTION - UNDER EBD AND ABS CONTROL IN CASE OF FAILURE

DTC Item Countermeasures for failure
EBD control ABS control
C100A Abnormality in FL wheel speed sensor circuit Executed(3) Prohibited
C1015 Abnormality in FR wheel speed sensor circuit
C1020 Abnormality in RL wheel speed sensor circuit
C102B Abnormality in RR wheel speed sensor circuit
C1011 Abnormality in FL wheel speed sensor signal Executed(3) Prohibited
C101C Abnormality in FR wheel speed sensor signal
C1027 Abnormality in RL wheel speed sensor signal
C1032 Abnormality in RR wheel speed sensor signal
C1014 Mutual monitoring of FL wheel speed sensor Executed(3) Prohibited
C101F Mutual monitoring of FR wheel speed sensor
C102A Mutual monitoring of RL wheel speed sensor
C1035 Mutual monitoring of RR wheel speed sensor
C1041 Abnormality in periodical signal for FL wheel speed sensor Executed(3) Prohibited
C1042 Abnormality in periodical signal for FR wheel speed sensor
C1043 Abnormality in periodical signal for RL wheel speed sensor
C1044 Abnormality in periodical signal for RR wheel speed sensor
C1046 FL wheel speed sensor control phase time exceeded Executed(3) Prohibited
C1047 FR wheel speed sensor control phase time exceeded
C1048 RL wheel speed sensor control phase time exceeded
C1049 RR wheel speed sensor control phase time exceeded
C104B Abnormality in FL wheel inlet valve system Prohibited Prohibited
C104F Abnormality in FR wheel inlet valve system
C1053 Abnormality in RL wheel inlet valve system
C1057 Abnormality in RR wheel inlet valve system
C105F Abnormality in FL wheel outlet valve system Prohibited Prohibited
C1063 Abnormality in FR wheel outlet valve system
C1067 Abnormality in RL wheel outlet valve system
C105B Abnormality in RR wheel outlet valve system
C2104 Malfunction of valve power supply circuit Prohibited Prohibited
C1073 Malfunction of motor drive circuit Executed Prohibited
C2116 Abnormality in pump motor power supply voltage Executed Prohibited
C1000 Abnormality in stop light switch circuit Executed Executed
C2200 Trouble in ABS-ECU Prohibited(2) Prohibited(2)
C2100 Battery voltage problem (low voltage) 9.7 ± 0.3 V or less(1) Executed Prohibited
8.0 ± 0.5 V or less (1) Prohibited Prohibited
C2101 Battery voltage problem (high voltage) 18.0 ± 1.0 V or more Prohibited Prohibited
C1395 Brake fluid charging incompletion Executed Executed
C2203 VIN not written Executed Executed
C1608 Implausible diagnosis data Executed Executed
U0001 Bus off Executed Executed
U0100 Engine time-out error Executed Executed
U0141 ETACS time-out error Executed Executed
U1415 Variant coding not implemented Executed Prohibited
U1417 Invalid variant coding value (including wrong assembly) Executed Prohibited
NOTE:
(1) This diagnostic trouble code is not stored within the vehicle speed of 12 mph (20 km/h) or less.
(2) Not prohibited when the brake warning light is not illuminated.
(3) Prohibited when two or more wheels are faulty.
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