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 circuit indicated by the DTC. For details of each code, refer to the "See" for the respective "DTC Code" in the DTC chart.
When 2 or more DTCs are output, perform circuit inspection 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 as shown in the table below.

DTC CHART FOR ABS:

DTC Code	Detection Item	Trouble Area	See
C0226	SFR Solenoid Circuit	1. SFRR or SFRH circuit 2. 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	1. SFLR or SFLH circuit 2. 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	1. SRRR or SRRH circuit 2. 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	1. SRLR or SRLH circuit 2. 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*1	Open Circuit in ABS Motor Relay Circuit	1. ABS1 H-fuse 2. Motor relay circuit 3. 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 Circuit in ABS Motor Relay Circuit	1. Motor relay circuit 2. 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 Circuit in ABS Solenoid Relay Circuit	1. ABS2 H-fuse 2. Solenoid relay circuit 3. 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 Circuit in ABS Solenoid Relay Circuit	1. Solenoid relay circuit 2. Brake actuator assembly (solenoid relay)	Refer to DTC C0278: Open in ABS Solenoid Relay Circuit; DTC C0279: Short in ABS Solenoid Relay Circuit
C1225	SA1 Solenoid Circuit	1. SM1 or SM2 circuit 2. 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
C1241	Low or High Power Supply Voltage	1. ECU-IG1 fuse 2. Battery 3. Charging system 4. Power source circuit 5. Internal power supply circuit of the skid control ECU	Refer to DTC C1241: Low Power Supply Voltage Malfunction
C1243*1	Deceleration Sensor	1. Sensor installation 2. Yaw rate and deceleration sensor	Refer to DTC C1232: Acceleration Sensor Stuck Malfunction; DTC C1243: Acceleration Sensor Stuck Malfunction; DTC C1245: Acceleration Sensor Output Malfunction
C1245*1	Abnormal Output in Deceleration Sensor	1. Sensor installation 2. Yaw rate and deceleration sensor	Refer to DTC C1232: Acceleration Sensor Stuck Malfunction; DTC C1243: Acceleration Sensor Stuck Malfunction; DTC C1245: Acceleration Sensor Output Malfunction
C1337	Different Diameter Tire Malfunction	1. Tire and wheel size 2. Tire deformation 3. Speed sensor rotor 4. Speed sensor 5. Speed sensor circuit 6. Brake actuator assembly (Skid control ECU)	Refer to DTC C1337: Diameter of the Tire is not Uniform
C1361	Abnormal Output in Deceleration Sensor	1. ABS1 H-fuse 2. Motor fail-safe relay circuit 3. 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	Abnormal Power Supply Voltage in Yaw Rate and / or Deceleration Sensor	1. Yaw rate and deceleration sensor power source circuit 2. Yaw rate and deceleration sensor	Refer to DTC C1381: Acceleration Sensor Power Supply Voltage Malfunction
C1401*1	Malfunction Front Speed Sensor RH Circuit	1. Front speed sensor RH 2. Speed sensor rotor	Refer to DTC C1401: Front Speed Sensor RH Malfunction; DTC C1402: Front Speed Sensor LH Malfunction
C1402*1	Malfunction Front Speed Sensor LH Circuit	1. Front speed sensor LH 2. Speed sensor rotor	Refer to DTC C1401: Front Speed Sensor RH Malfunction; DTC C1402: Front Speed Sensor LH Malfunction
C1403*1	Malfunction Rear Speed Sensor RH Circuit	1. Rear speed sensor RH 2. Speed sensor rotor	Refer to DTC C1403: Rear Speed Sensor RH Malfunction; DTC C1404: Rear Speed Sensor LH Malfunction
C1404*1	Malfunction Rear Speed Sensor LH Circuit	1. Rear speed sensor LH 2. Speed sensor rotor	Refer to DTC C1403: Rear Speed Sensor RH Malfunction; DTC C1404: Rear Speed Sensor LH Malfunction
C1405*1	Open or Short in Front Speed Sensor RH Circuit	1. Front speed sensor RH 2. Speed sensor circuit 3. 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*1	Open or Short in Front Speed Sensor LH Circuit	1. Front speed sensor LH 2. Speed sensor circuit 3. 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*1	Open or Short in Rear Speed Sensor RH Circuit	1. Rear speed sensor RH 2. Speed sensor circuit 3. 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*1	Open or Short in Rear Speed Sensor LH Circuit	1. Rear speed sensor LH 2. Speed sensor circuit 3. 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*1	Front Speed Sensor RH Circuit Output	1. Front speed sensor RH 2. Speed sensor circuit 3. Speed sensor rotor 4. Brake actuator assembly (Skid control ECU)	Refer to DTC C1413: Front Speed Sensor RH Output Malfunction; DTC C1414: Front Speed Sensor LH Output Malfunction
C1414*1	Front Speed Sensor LH Circuit Output	1. Front speed sensor LH 2. Speed sensor circuit 3. Speed sensor rotor 4. Brake actuator assembly (Skid control ECU)	Refer to DTC C1413: Front Speed Sensor RH Output Malfunction; DTC C1414: Front Speed Sensor LH Output Malfunction
C1415*1	Rear Speed Sensor RH Circuit Output	1. Rear speed sensor RH 2. Speed sensor circuit 3. Speed sensor rotor 4. Brake actuator assembly (Skid control ECU)	Refer to DTC C1415: Rear Speed Sensor RH Output Malfunction; DTC C1416: Rear Speed Sensor LH Output Malfunction
C1416*1	Rear Speed Sensor LH Circuit Output	1. Rear speed sensor LH 2. Speed sensor circuit 3. Speed sensor rotor 4. Brake actuator assembly (Skid control ECU)	Refer to DTC C1415: Rear Speed Sensor RH Output Malfunction; DTC C1416: Rear Speed Sensor LH Output Malfunction
C1417	IG1 Voltage Supply too High	1. ECU-IG1 fuse 2. Battery 3. Charging system 4. Power source circuit 5. Internal power supply circuit of the skid control ECU	Refer to DTC C1417: High Power Supply Voltage Malfunction
C1419	Deceleration Sensor Internal Circuit	Yaw rate and deceleration sensor	Refer to DTC C1419: Acceleration Sensor Internal Circuit; DTC C1435: Yaw Rate Sensor Internal Circuit
C1420	Malfunction in Deceleration Sensor	1. Sensor installation 2. Yaw rate and deceleration sensor	Refer to DTC C1420: Acceleration Sensor Malfunction
C1421*2	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 C1423: Master Cylinder Pressure Sensor Zero Point Low Malfunction; DTC C1424: Master Cylinder Pressure Sensor Output Malfunction
C1422*2	Master Cylinder Pressure Sensor Zero Point High	1. Stop light switch 2. Stop light switch circuit 3. Master cylinder pressure sensor circuit 4. Brake actuator assembly (Master cylinder pressure sensor)	Refer to DTC C1422: Master Cylinder Pressure Sensor Zero Point High Malfunction
C1423*2	Master Cylinder Pressure Sensor Zero Point Low	Brake actuator assembly (Master cylinder pressure sensor)	Refer to DTC C1421: Open or Short in Master Cylinder Pressure Sensor; DTC C1423: Master Cylinder Pressure Sensor Zero Point Low Malfunction; DTC C1424: Master Cylinder Pressure Sensor Output Malfunction
C1424*2	Master Cylinder Pressure Sensor Output	Brake actuator assembly (Master cylinder pressure sensor)	Refer to DTC C1421: Open or Short in Master Cylinder Pressure Sensor; DTC C1423: Master Cylinder Pressure Sensor Zero Point Low Malfunction; DTC C1424: Master Cylinder Pressure Sensor Output Malfunction
C1425*3	Open in Stop Switch Circuit	1. STOP fuse 2. Stop light switch 3. Stop light switch circuit 4. Stop light control relay 5. Stop light control relay circuit 6. Brake actuator assembly (Skid control ECU)	Refer to DTC C1425: Open in Stop Light Switch Circuit
C1426	Stop Switch OFF Stuck Malfunction	1. STOP fuse 2. Stop light switch 3. Stop light switch circuit 4. Stop light control relay 5. Stop light control relay circuit 6. Brake actuator assembly (Skid control ECU)	Refer to DTC C1426: Stop Light Switch OFF Stuck Malfunction
C1427*1	Malfunction in Motor	1. Brake actuator assembly (Ground circuit) 2. Brake actuator assembly (Motor circuit)	Refer to DTC C1427: Motor Malfunction
C1428*1	Motor Circuit	Brake actuator assembly (Motor circuit)	Refer to DTC C1428: Motor Circuit Malfunction
C1429	Open or Short in Pedal Force Switch	1. Brake pedal load sensing switch 2. Brake pedal load sensing switch circuit 3. Brake actuator assembly (Skid control ECU)	Refer to DTC C1429: Open or Short in Brake Pedal Load Sensing Switch
C1430	Pedal Force Switch OFF Stuck	1. Brake pedal load sensing switch 2. Brake pedal load sensing switch circuit	Refer to DTC C1430: Brake Pedal Load Sensing Switch OFF Stuck Malfunction; DTC C1431: Brake Pedal Load Sensing Switch ON Stuck Malfunction
C1431	Pedal Force Switch ON Stuck	1. Brake pedal load sensing switch 2. Brake pedal load sensing switch circuit	Refer to DTC C1430: Brake Pedal Load Sensing Switch OFF Stuck Malfunction; DTC C1431: Brake Pedal Load Sensing Switch ON Stuck Malfunction
C1442	Invalid Data Received from Yaw Rate Sensor	Yaw rate and deceleration sensor	Refer to DTC C1442: Invalid Data Received from Acceleration Sensor; DTC C1443: Invalid Data Received from Yaw Rate Sensor
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
U0124	Lost Communication with Lateral Acceleration Sensor Module	CAN communication system (Skid control ECU to yaw rate and deceleration sensor)	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

(*1 to *3):

Even after the trouble areas are repaired, the ABS warning light will not turn off unless one of the following operations is performed:

(*1):
1. Drive the vehicle at 20 km/h (12 mph) for 30 seconds or more and check that the ABS warning light turns off.
2. Clear the DTCs.

(*2):
1. Turn the ignition switch to ON.
2. Keep the vehicle stationary for 5 seconds or more and depress the brake pedal lightly 2 or 3 times.
3. Drive the vehicle at the vehicle speed of 50 km/h (31 mph) and depress and hold the brake pedal firmly for approximately 3 seconds.
4. Repeat the above operation 3 times or more and check that the ABS warning light turns off.
5. Clear the DTCs.

(*3):
1. Turn the ignition switch to ON.
2. Depress the brake pedal.
3. Clear the DTCs.

HINT:

In some cases, the Techstream cannot be used when the ABS warning light remains on.

DTC CHART FOR VSC:

DTC Code	Detection Item	Trouble Area	See
C1201	Engine Control System Malfunction	Engine control system	Refer to DTC C1201: Engine Control System Malfunction
C1203	ECM Communication Circuit Malfunction	ECM	Refer to DTC C1203: ECM Communication Circuit Malfunction
C1210	Zero Point Calibration of Yaw Rate Sensor Undone	Yaw rate and deceleration sensor	Refer to DTC C1210: Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336: Zero Point Calibration of Acceleration Sensor Undone
C1232	Deceleration Sensor	1. Sensor installation 2. Yaw rate and deceleration sensor	Refer to DTC C1232: Acceleration Sensor Stuck Malfunction; DTC C1243: Acceleration Sensor Stuck Malfunction; DTC C1245: Acceleration Sensor Output Malfunction
C1290	Abnormal Zero Point of Steering Angle Sensor	1. Yaw rate and deceleration sensor zero point calibration incomplete 2. Poor adjustment of the center position of the steering wheel 3. Poor adjustment of front wheel alignment	Refer to DTC C1290: Steering Angle Sensor Zero Point Malfunction
C1336	Zero Point Calibration of Deceleration Sensor Undone	Yaw rate and deceleration sensor	Refer to DTC C1210: Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336: Zero Point Calibration of Acceleration Sensor Undone
C1380	Stop Light Relay Malfunction	1. Stop light switch circuit 2. Stop light control relay 3. Stop light control relay circuit 4. Brake actuator assembly (Skid control ECU)	Refer to DTC C1380: Stop Light Control Relay Malfunction
C1432	Steering Angle Sensor Power Source Voltage	1. Steering angle sensor power supply 2. Steering angle sensor	Refer to DTC C1432: Steering Angle Sensor Power Source Voltage Malfunction
C1433	Steering Angle Sensor Internal Circuit	Steering angle sensor	Refer to DTC C1433: Steering Angle Sensor Internal Circuit
C1434	Steering Angle Sensor Output	1. Steering angle sensor power supply 2. Steering angle sensor	Refer to DTC C1434: Steering Angle Sensor Output Malfunction
C1435	Yaw Rate Sensor Internal Circuit	Yaw rate and deceleration sensor	Refer to DTC C1419: Acceleration Sensor Internal Circuit; DTC C1435: Yaw Rate Sensor Internal Circuit
C1436	Malfunction in Yaw Rate Sensor	Yaw rate and deceleration sensor	Refer to DTC C1436: Yaw Rate Sensor Malfunction
C1437	Lost Communication with Engine ECM	1. Engine control system 2. CAN communication system (Skid control ECU to ECM) 3. Brake actuator assembly (Skid control ECU)	Refer to DTC C1437: Lost Communication with ECM
C1439	Steering Angle Sensor Initialization Incomplete	1. Steering angle sensor 2. Yaw rate and deceleration sensor 3. 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	Steering Angle Sensor Unusual Bank Angle Detected	Yaw rate and deceleration sensor	Refer to DTC C1440: Steering Angle Sensor Unusual Bank Angle Detected
C1441	Brake Booster Malfunction	Brake booster assembly	Refer to DTC C1441: Brake Booster Malfunction
C1443	Invalid Data Received from Deceleration Sensor	Yaw rate and deceleration 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	1. Steering angle sensor 2. Yaw rate and deceleration sensor 3. 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
U0100	Lost Communication with ECM / PCM "A"	CAN communication system (Skid control ECU to ECM)	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 (Skid control ECU to yaw rate and deceleration sensor)	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 (Skid control ECU to steering angle sensor)	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

HINT:

In some cases, the Techstream cannot be used when the slip indicator light remains on.

TEST MODE DTC FOR ABS:

DTC Code	Detection Item	Trouble Area	See
C1271	Low Output Signal of Right Front Speed Sensor (Test Mode DTC)	1. Front speed sensor RH 2. Sensor installation 3. Speed sensor rotor	Refer to 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 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)
C1272	Low Output Signal of Left Front Speed Sensor (Test Mode DTC)	1. Front speed sensor LH 2. Sensor installation 3. Speed sensor rotor	Refer to 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 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)
C1273	Low Output Signal of Right Rear Speed Sensor (Test Mode DTC)	1. Rear speed sensor RH 2. Sensor installation 3. Speed sensor rotor	Refer to 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 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)
C1274	Low Output Signal of Left Rear Speed Sensor (Test Mode DTC)	1. Rear speed sensor LH 2. Sensor installation 3. Speed sensor rotor	Refer to 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 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)
C1275	Abnormal Change in Output Signal of Right Front Speed Sensor (Test Mode DTC)	Speed sensor rotor	Refer to 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 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)
C1276	Abnormal Change in Output Signal of Left Front Speed Sensor (Test Mode DTC)	Speed sensor rotor	Refer to 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 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)
C1277	Abnormal Change in Output Signal of Right Rear Speed Sensor (Test Mode DTC)	Speed sensor rotor	Refer to 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 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)
C1278	Abnormal Change in Output Signal of Left Rear Speed Sensor (Test Mode DTC)	Speed sensor rotor	Refer to 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 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)
C1279	Abnormal Output Voltage in Deceleration (Test Mode DTC)	1. Sensor installation 2. Yaw rate and deceleration sensor	Refer to DTC C0371: Yaw Rate Sensor (Test Mode DTC); DTC C1279: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)
C1281	Abnormal Output in Master Cylinder Pressure Sensor (Test Mode DTC)	1. Stop light switch 2. Brake pedal load sensing switch 3. Master cylinder pressure sensor	Refer to DTC C1281: Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC)

TEST MODE DTC FOR VSC:

DTC Code	Detection Item	Trouble Area	See
C0371	Yaw Rate Sensor (Test Mode DTC)	Yaw rate and deceleration sensor	Refer to DTC C0371: Yaw Rate Sensor (Test Mode DTC); DTC C1279: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)
C1379*	Downhill Assist Control Switch (Test Mode DTC)	Downhill assist control switch	Refer to DTC C1379: Downhill Assist Control Switch Malfunction (Test Mode DTC)

*: w/ Downhill Assist Control