Diagnostic Trouble Code Chart

NOTE:

Turn the ignition switch off before removing any parts.

HINT:

If no abnormality is found when inspecting parts, inspect the skid control ECU and ground points for poor connections.
If a trouble code is output during the DTC check, check the trouble areas indicated by the DTC. For details of each code, see the "Refer to" for the respective "DTC Code" in the DTC chart.
When 2 or more DTCs are output, perform circuit inspections one by one until the problem is identified.
For DTCs indicated by the warning light or indicator light, refer to the DTC charts in DTC Check/Clear.
Inspect the fuses and relays before inspecting the trouble areas shown in the table below.

DTC

TEST MODE DTC

DTC Code	Detection Item	Trouble Area	Refer to
C1271	Low Output Signal of Front Speed Sensor RH (Test Mode DTC)	- Front speed sensor RH - Speed sensor rotor - Sensor installation	Refer to DTC C1401: Front Speed Sensor RH Malfunction; DTC C1271: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272: Low Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1402: Front Speed Sensor LH Malfunction
C1272	Low Output Signal of Front Speed Sensor LH (Test Mode DTC)	- Front speed sensor LH - Speed sensor rotor - Sensor installation	Refer to DTC C1401: Front Speed Sensor RH Malfunction; DTC C1271: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272: Low Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1402: Front Speed Sensor LH Malfunction
C1273	Low Output Signal of Rear Speed Sensor RH (Test Mode DTC)	- Rear speed sensor RH - Speed sensor rotor	Refer to DTC C1403: Rear Speed Sensor RH Malfunction; DTC C1273: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1404: Rear Speed Sensor LH Malfunction
C1274	Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)	- Rear speed sensor LH - Speed sensor rotor	Refer to DTC C1403: Rear Speed Sensor RH Malfunction; DTC C1273: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1404: Rear Speed Sensor LH Malfunction
C1275	Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)	- Front speed sensor RH - Speed sensor rotor	Refer to DTC C1413: Front Speed Sensor RH Output Malfunction; DTC C1275: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1414: Front Speed Sensor LH Output Malfunction
C1276	Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)	- Front speed sensor LH - Speed sensor rotor	Refer to DTC C1413: Front Speed Sensor RH Output Malfunction; DTC C1275: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1414: Front Speed Sensor LH Output Malfunction
C1277	Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC)	- Rear speed sensor RH - Speed sensor rotor	Refer to DTC C1415: Rear Speed Sensor RH Output Malfunction; DTC C1277: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1416: Rear Speed Sensor LH Output Malfunction
C1278	Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)	- Rear speed sensor LH - Speed sensor rotor	Refer to DTC C1415: Rear Speed Sensor RH Output Malfunction; DTC C1277: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1416: Rear Speed Sensor LH Output Malfunction
C1279	Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)	- Yaw rate and acceleration sensor - Sensor installation	Refer to DTC C1232: Acceleration Sensor Stuck Malfunction; DTC C1243: Acceleration Sensor Stuck Malfunction; DTC C1245: Acceleration Sensor Output Malfunction; DTC C1279: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)
C1281	Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC)	Brake actuator assembly (Master cylinder pressure sensor)	Refer to DTC C1421: Open or Short in Master Cylinder Pressure Sensor; DTC C1281: Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC); DTC C1423: Master Cylinder Pressure Sensor Zero Point Low Malfunction; DTC C1424: Master Cylinder Pressure Sensor Output Malfunction

DTC Code	Detection Item	Trouble Area	Refer to
43	ABS Control System Malfunction	Anti-lock brake system	Refer to DTC 43: ABS Control System Malfunction
C0226	SFR Solenoid Circuit	Brake actuator assembly	Refer to DTC C0226: SFR Solenoid Circuit; DTC C0236: SFL Solenoid Circuit; DTC C0246: SRR Solenoid Circuit; DTC C0256: SRL Solenoid Circuit; DTC C1225: SM Solenoid Circuit
C0236	SFL Solenoid Circuit	Brake actuator assembly	Refer to DTC C0226: SFR Solenoid Circuit; DTC C0236: SFL Solenoid Circuit; DTC C0246: SRR Solenoid Circuit; DTC C0256: SRL Solenoid Circuit; DTC C1225: SM Solenoid Circuit
C0246	SRR Solenoid Circuit	Brake actuator assembly	Refer to DTC C0226: SFR Solenoid Circuit; DTC C0236: SFL Solenoid Circuit; DTC C0246: SRR Solenoid Circuit; DTC C0256: SRL Solenoid Circuit; DTC C1225: SM Solenoid Circuit
C0256	SRL Solenoid Circuit	Brake actuator assembly	Refer to DTC C0226: SFR Solenoid Circuit; DTC C0236: SFL Solenoid Circuit; DTC C0246: SRR Solenoid Circuit; DTC C0256: SRL Solenoid Circuit; DTC C1225: SM Solenoid Circuit
C0273	Open in ABS Motor Relay Circuit	- ABS NO. 1 fuse - Motor relay circuit - Brake actuator assembly (Motor relay)	Refer to DTC C0273: Open in ABS Motor Relay Circuit; DTC C0274: Short in ABS Motor Relay Circuit; DTC C1361: Short in ABS Motor Fail Safe Relay Circuit
C0274	Short in ABS Motor Relay Circuit	- Motor relay circuit - Brake actuator assembly (Motor relay)	Refer to DTC C0273: Open in ABS Motor Relay Circuit; DTC C0274: Short in ABS Motor Relay Circuit; DTC C1361: Short in ABS Motor Fail Safe Relay Circuit
C0278	Open in ABS Solenoid Relay Circuit	- ABS NO. 2 fuse - Solenoid relay circuit - Brake actuator assembly (Solenoid relay)	Refer to DTC C0278: Open in ABS Solenoid Relay Circuit; DTC C0279: Short in ABS Solenoid Relay Circuit
C0279	Short in ABS Solenoid Relay Circuit	- Solenoid relay circuit - Brake actuator assembly (Solenoid relay)	Refer to DTC C0278: Open in ABS Solenoid Relay Circuit; DTC C0279: Short in ABS Solenoid Relay Circuit
C1201	Engine Control System Malfunction	Engine control system	Refer to DTC C1201: Engine Control System Malfunction
C1203	ECM Communication Circuit Malfunction	Engine control system	Refer to DTC C1203: ECM Communication Circuit Malfunction
C1210	Zero Point Calibration of Yaw Rate Sensor Undone	- Zero point calibration incomplete - Sensor installation - Yaw rate and acceleration sensor - Brake actuator assembly (Skid control ECU)	Refer to DTC C1210: Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336: Zero Point Calibration of Acceleration Sensor Undone
C1225	SM Solenoid Circuit	Brake actuator assembly	Refer to DTC C0226: SFR Solenoid Circuit; DTC C0236: SFL Solenoid Circuit; DTC C0246: SRR Solenoid Circuit; DTC C0256: SRL Solenoid Circuit; DTC C1225: SM Solenoid Circuit
C1232	Acceleration Sensor Stuck Malfunction	- Yaw rate and acceleration sensor - Yaw rate and acceleration sensor circuit	Refer to DTC C1232: Acceleration Sensor Stuck Malfunction; DTC C1243: Acceleration Sensor Stuck Malfunction; DTC C1245: Acceleration Sensor Output Malfunction; DTC C1279: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)
C1241	Low Power Supply Voltage Malfunction	- ECU-IG1 NO. 2 fuse - Battery - Charging system - Power source circuit - Internal power supply circuit of skid control ECU	Refer to DTC C1241: Low Power Supply Voltage Malfunction
C1243	Acceleration Sensor Stuck Malfunction	- Yaw rate and acceleration sensor - Yaw rate and acceleration sensor circuit	Refer to DTC C1232: Acceleration Sensor Stuck Malfunction; DTC C1243: Acceleration Sensor Stuck Malfunction; DTC C1245: Acceleration Sensor Output Malfunction; DTC C1279: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)
C1245	Acceleration Sensor Output Malfunction	- Yaw rate and acceleration sensor - Yaw rate and acceleration sensor circuit - Sensor installation	Refer to DTC C1232: Acceleration Sensor Stuck Malfunction; DTC C1243: Acceleration Sensor Stuck Malfunction; DTC C1245: Acceleration Sensor Output Malfunction; DTC C1279: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)
C1290	Steering Angle Sensor Zero Point Malfunction	- Yaw rate and acceleration sensor zero point calibration incomplete - Poor adjustment of the centered position of steering wheel - Poor adjustment of front wheel alignment	Refer to DTC C1290: Steering Angle Sensor Zero Point Malfunction
C1336	Zero Point Calibration of Acceleration Sensor Undone	- Zero point calibration incomplete - Sensor installation - Yaw rate and acceleration sensor - Brake actuator assembly (Skid control ECU)	Refer to DTC C1210: Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336: Zero Point Calibration of Acceleration Sensor Undone
C1361	Short in ABS Motor Fail Safe Relay Circuit	- ABS NO. 1 fuse - Motor fail-safe relay circuit - Brake actuator assembly (Motor fail-safe relay)	Refer to DTC C0273: Open in ABS Motor Relay Circuit; DTC C0274: Short in ABS Motor Relay Circuit; DTC C1361: Short in ABS Motor Fail Safe Relay Circuit
C1381	Acceleration Sensor Power Supply Voltage Malfunction	- ECU-IG1 NO. 2 fuse - Yaw rate and acceleration sensor - Yaw rate and acceleration sensor power source circuit	Refer to DTC C1381: Acceleration Sensor Power Supply Voltage Malfunction
C1401	Front Speed Sensor RH Malfunction	- Front speed sensor RH - Speed sensor rotor - Sensor installation	Refer to DTC C1401: Front Speed Sensor RH Malfunction; DTC C1271: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272: Low Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1402: Front Speed Sensor LH Malfunction
C1402	Front Speed Sensor LH Malfunction	- Front speed sensor LH - Speed sensor rotor - Sensor installation	Refer to DTC C1401: Front Speed Sensor RH Malfunction; DTC C1271: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272: Low Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1402: Front Speed Sensor LH Malfunction
C1403	Rear Speed Sensor RH Malfunction	- Rear speed sensor RH - Speed sensor rotor	Refer to DTC C1403: Rear Speed Sensor RH Malfunction; DTC C1273: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1404: Rear Speed Sensor LH Malfunction
C1404	Rear Speed Sensor LH Malfunction	- Rear speed sensor LH - Speed sensor rotor	Refer to DTC C1403: Rear Speed Sensor RH Malfunction; DTC C1273: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1404: Rear Speed Sensor LH Malfunction
C1405	Open or Short in Front Speed Sensor RH Circuit	- Front speed sensor RH - Speed sensor circuit - Brake actuator assembly (Skid control ECU)	Refer to DTC C1405: Open or Short in Front Speed Sensor RH Circuit; DTC C1406: Open or Short in Front Speed Sensor LH Circuit
C1406	Open or Short in Front Speed Sensor LH Circuit	- Front speed sensor LH - Speed sensor circuit - Brake actuator assembly (Skid control ECU)	Refer to DTC C1405: Open or Short in Front Speed Sensor RH Circuit; DTC C1406: Open or Short in Front Speed Sensor LH Circuit
C1407	Open or Short in Rear Speed Sensor RH Circuit	- Rear speed sensor RH - Skid control sensor wire - Speed sensor circuit - Brake actuator assembly (Skid control ECU)	Refer to DTC C1407: Open or Short in Rear Speed Sensor RH Circuit; DTC C1408: Open or Short in Rear Speed Sensor LH Circuit
C1408	Open or Short in Rear Speed Sensor LH Circuit	- Rear speed sensor LH - Skid control sensor wire - Speed sensor circuit - Brake actuator assembly (Skid control ECU)	Refer to DTC C1407: Open or Short in Rear Speed Sensor RH Circuit; DTC C1408: Open or Short in Rear Speed Sensor LH Circuit
C1413	Front Speed Sensor RH Output Malfunction	- Front speed sensor RH - Speed sensor circuit - Speed sensor rotor - Brake actuator assembly (Skid control ECU)	Refer to DTC C1413: Front Speed Sensor RH Output Malfunction; DTC C1275: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1414: Front Speed Sensor LH Output Malfunction
C1414	Front Speed Sensor LH Output Malfunction	- Front speed sensor LH - Speed sensor circuit - Speed sensor rotor - Brake actuator assembly (Skid control ECU)	Refer to DTC C1413: Front Speed Sensor RH Output Malfunction; DTC C1275: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1414: Front Speed Sensor LH Output Malfunction
C1415	Rear Speed Sensor RH Output Malfunction	- Rear speed sensor RH - Skid control sensor wire - Speed sensor circuit - Speed sensor rotor - Brake actuator assembly (Skid control ECU)	Refer to DTC C1415: Rear Speed Sensor RH Output Malfunction; DTC C1277: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1416: Rear Speed Sensor LH Output Malfunction
C1416	Rear Speed Sensor LH Output Malfunction	- Rear speed sensor LH - Skid control sensor wire - Speed sensor circuit - Speed sensor rotor - Brake actuator assembly (Skid control ECU)	Refer to DTC C1415: Rear Speed Sensor RH Output Malfunction; DTC C1277: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1416: Rear Speed Sensor LH Output Malfunction
C1417	High Power Supply Voltage Malfunction	- ECU-IG1 NO. 2 fuse - Battery - Charging system - Power source circuit - Internal power supply circuit of skid control ECU	Refer to DTC C1417: High Power Supply Voltage Malfunction
C1419	Acceleration Sensor Internal Circuit	Yaw rate and acceleration sensor	Refer to DTC C1419: Acceleration Sensor Internal Circuit; DTC C1435: Yaw Rate Sensor Internal Circuit
C1420	Acceleration Sensor Malfunction	- Sensor installation - Yaw rate and acceleration sensor	Refer to DTC C1420: Acceleration Sensor Malfunction
C1421	Open or Short in Master Cylinder Pressure Sensor	Brake actuator assembly (Master cylinder pressure sensor)	Refer to DTC C1421: Open or Short in Master Cylinder Pressure Sensor; DTC C1281: Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC); DTC C1423: Master Cylinder Pressure Sensor Zero Point Low Malfunction; DTC C1424: Master Cylinder Pressure Sensor Output Malfunction
C1422	Master Cylinder Pressure Sensor Zero Point High Malfunction	- STOP fuse - Stop light switch - Stop light switch circuit - Master cylinder pressure sensor circuit - Brake actuator assembly (Master cylinder pressure sensor)	Refer to DTC C1422: Master Cylinder Pressure Sensor Zero Point High Malfunction
C1423	Master Cylinder Pressure Sensor Zero Point Low Malfunction	Brake actuator assembly (Master cylinder pressure sensor)	Refer to DTC C1421: Open or Short in Master Cylinder Pressure Sensor; DTC C1281: Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC); DTC C1423: Master Cylinder Pressure Sensor Zero Point Low Malfunction; DTC C1424: Master Cylinder Pressure Sensor Output Malfunction
C1424	Master Cylinder Pressure Sensor Output Malfunction	Brake actuator assembly (Master cylinder pressure sensor)	Refer to DTC C1421: Open or Short in Master Cylinder Pressure Sensor; DTC C1281: Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC); DTC C1423: Master Cylinder Pressure Sensor Zero Point Low Malfunction; DTC C1424: Master Cylinder Pressure Sensor Output Malfunction
C1425	Open in Stop Light Switch Circuit	- STOP fuse - Stop light switch - Stop light switch circuit - Brake actuator assembly (Master cylinder pressure sensor)	Refer to DTC C1425: Open in Stop Light Switch Circuit
C1427	Motor Malfunction	- Brake actuator assembly (Ground circuit) - Brake actuator assembly (Motor circuit)	Refer to DTC C1427: Motor Malfunction
C1428	Motor Circuit Malfunction	Brake actuator assembly (Motor circuit)	Refer to DTC C1428: Motor Circuit Malfunction
C1432	Steering Angle Sensor Power Source Voltage Malfunction	- ECU-B fuse - ECU-IG1 NO. 2 fuse - Steering angle sensor power supply circuit - Steering angle sensor (Spiral with sensor cable sub-assembly)	Refer to DTC C1432: Steering Angle Sensor Power Source Voltage Malfunction
C1433	Steering Angle Sensor Internal Circuit	Steering angle sensor (Spiral with sensor cable sub-assembly)	Refer to DTC C1433: Steering Angle Sensor Internal Circuit
C1434	Steering Angle Sensor Output Malfunction	- ECU-B fuse - ECU-IG1 NO. 2 fuse - Steering angle sensor power supply circuit - Steering angle sensor (Spiral with sensor cable sub-assembly) - Brake actuator assembly (Skid control ECU)	Refer to DTC C1434: Steering Angle Sensor Output Malfunction
C1435	Yaw Rate Sensor Internal Circuit	Yaw rate and acceleration sensor	Refer to DTC C1419: Acceleration Sensor Internal Circuit; DTC C1435: Yaw Rate Sensor Internal Circuit
C1436	Yaw Rate Sensor Malfunction	Yaw rate and acceleration sensor	Refer to DTC C1436: Yaw Rate Sensor Malfunction
C1437	Lost Communication with ECM	- CAN communication system (Skid control ECU to ECM) - Brake actuator assembly (Skid control ECU)	Refer to DTC C1437: Lost Communication with ECM
C1439	Steering Angle Sensor Initialization Incomplete	- Steering angle sensor (Spiral with sensor cable sub-assembly) - Brake actuator assembly (Skid control ECU)	Refer to DTC C1439: Steering Angle Sensor Initialization Incomplete; DTC C1445: Vehicle Driven with Steering Angle Sensor not Initialized
C1440	Unusual Bank Angle Detected	Yaw rate and acceleration sensor	Refer to DTC C1440: Unusual Bank Angle Detected
C1442	Invalid Data Received from Acceleration Sensor	Yaw rate and acceleration sensor	Refer to DTC C1442: Invalid Data Received from Acceleration Sensor; DTC C1443: Invalid Data Received from Yaw Rate Sensor
C1443	Invalid Data Received from Yaw Rate Sensor	Yaw rate and acceleration sensor	Refer to DTC C1442: Invalid Data Received from Acceleration Sensor; DTC C1443: Invalid Data Received from Yaw Rate Sensor
C1445	Vehicle Driven with Steering Angle Sensor not Initialized	- Steering angle sensor (Spiral with sensor cable sub-assembly) - Brake actuator assembly (Skid control ECU)	Refer to DTC C1439: Steering Angle Sensor Initialization Incomplete; DTC C1445: Vehicle Driven with Steering Angle Sensor not Initialized
U0073	Control Module Communication Bus OFF	CAN communication system	Refer to DTC U0073: Control Module Communication Bus OFF; DTC U0100: Lost Communication with ECM / PCM; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0124: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module
U0100	Lost Communication with ECM / PCM	CAN communication system	Refer to DTC U0073: Control Module Communication Bus OFF; DTC U0100: Lost Communication with ECM / PCM; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0124: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module
U0123	Lost Communication with Yaw Rate Sensor Module	CAN communication system	Refer to DTC U0073: Control Module Communication Bus OFF; DTC U0100: Lost Communication with ECM / PCM; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0124: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module
U0124	Lost Communication with Lateral Acceleration Sensor Module	CAN communication system	Refer to DTC U0073: Control Module Communication Bus OFF; DTC U0100: Lost Communication with ECM / PCM; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0124: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module
U0126	Lost Communication with Steering Angle Sensor Module	CAN communication system	Refer to DTC U0073: Control Module Communication Bus OFF; DTC U0100: Lost Communication with ECM / PCM; DTC U0123: Lost Communication with Yaw Rate Sensor Module; DTC U0124: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126: Lost Communication with Steering Angle Sensor Module