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Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2009 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:

Turn the engine switch off before removing any parts.

HINT: 

DIAGNOSTIC TROUBLE CODE CHART

DTC Code Detection Item Trouble Area See
C0200/31*1 Front Speed Sensor RH Circuit 1. Front speed sensor RH
2. Speed sensor circuit
3. Speed sensor rotor
4. Sensor installation
5. Skid control ECU
Refer to DTC C0200/31: Front Speed Sensor RH Circuit; DTC C0205/32: Front Speed Sensor LH Circuit; DTC C1271/71: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272/72: Low Output Signal of Front Speed Sensor LH (Test Mode DTC)
C0205/32*1 Front Speed Sensor LH Circuit 1. Front speed sensor LH
2. Speed sensor circuit
3. Speed sensor rotor
4. Sensor installation
5. Skid control ECU
Refer to DTC C0200/31: Front Speed Sensor RH Circuit; DTC C0205/32: Front Speed Sensor LH Circuit; DTC C1271/71: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272/72: Low Output Signal of Front Speed Sensor LH (Test Mode DTC)
C0210/33*1 Rear Speed Sensor RH Circuit 1. Rear speed sensor RH
2. Speed sensor circuit
3. Speed sensor rotor
4. Sensor installation
5. Skid control ECU
Refer to DTC C0210/33: Rear Speed Sensor RH Circuit; DTC C0215/34: Rear Speed Sensor LH Circuit; DTC C1273/73: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C0215/34*1 Rear Speed Sensor LH Circuit 1. Rear speed sensor LH
2. Speed sensor circuit
3. Speed sensor rotor
4. Sensor installation
5. Skid control ECU
Refer to DTC C0210/33: Rear Speed Sensor RH Circuit; DTC C0215/34: Rear Speed Sensor LH Circuit; DTC C1273/73: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C0226/21 SFR Solenoid Circuit 1. Brake actuator assembly (SFRR or SFRH)
2. SFRR or SFRH circuit
3. Skid control ECU
Refer to DTC C0226/21: SFR Solenoid Circuit; DTC C0236/22: SFL Solenoid Circuit; DTC C0246/23: SRR Solenoid Circuit; DTC C0256/24: SRL Solenoid Circuit
C0236/22 SFL Solenoid Circuit 1. Brake actuator assembly (SFLR or SFLH)
2. SFLR or SFLH circuit
3. Skid control ECU
Refer to DTC C0226/21: SFR Solenoid Circuit; DTC C0236/22: SFL Solenoid Circuit; DTC C0246/23: SRR Solenoid Circuit; DTC C0256/24: SRL Solenoid Circuit
C0246/23 SRR Solenoid Circuit 1. Brake actuator assembly (SRRR or SRRH)
2. SRRR or SRRH circuit
3. Skid control ECU
Refer to DTC C0226/21: SFR Solenoid Circuit; DTC C0236/22: SFL Solenoid Circuit; DTC C0246/23: SRR Solenoid Circuit; DTC C0256/24: SRL Solenoid Circuit
C0256/24 SRL Solenoid Circuit 1. Brake actuator assembly (SRLR or SRLH)
2. SRLR or SRLH circuit
3. Skid control ECU
Refer to DTC C0226/21: SFR Solenoid Circuit; DTC C0236/22: SFL Solenoid Circuit; DTC C0246/23: SRR Solenoid Circuit; DTC C0256/24: SRL Solenoid Circuit
C0273/13*1 Open in ABS Motor Relay Circuit 1. ABS1 fuse
2. ABS MOTOR3 relay
3. ABS MOTOR3 relay circuit
4. Brake actuator assembly
5. Skid control ECU
Refer to DTC C0273/13: Open in ABS Motor Relay Circuit; DTC C0274/14: Short to B+ in ABS Motor Relay Circuit; DTC C1361/91: Short Circuit in ABS Motor Fail Safe Relay Circuit
C0274/14 Short to B+ in ABS Motor Relay Circuit 1. ABS1 fuse
2. ABS MOTOR3 relay
3. ABS MOTOR3 relay circuit
4. Brake actuator assembly
5. Skid control ECU
Refer to DTC C0273/13: Open in ABS Motor Relay Circuit; DTC C0274/14: Short to B+ in ABS Motor Relay Circuit; DTC C1361/91: Short Circuit in ABS Motor Fail Safe Relay Circuit
C0278/11 Open in ABS Solenoid Relay Circuit 1. ABS3 fuse
2. ABS SOL relay
3. ABS SOL relay circuit
4. Skid control ECU
Refer to DTC C0278/11: Open in ABS Solenoid Relay Circuit; DTC C0279/12: Short to B+ in ABS Solenoid Relay Circuit
C0279/12 Short to B+ in ABS Solenoid Relay Circuit 1. ABS3 fuse
2. ABS SOL relay
3. ABS SOL relay circuit
4. Skid control ECU
Refer to DTC C0278/11: Open in ABS Solenoid Relay Circuit; DTC C0279/12: Short to B+ in ABS Solenoid Relay Circuit
C1203/59 ECM Communication Circuit Malfunction ECM Refer to DTC C1203/59: ECM Communication Circuit Malfunction; DTC C1270/88: Initialization Incomplete (Test Mode DTC)
C1225/25 SM Solenoid Circuit 1. Brake actuator assembly (SM1 or SM2)
2. SM1 or SM2 circuit
3. Skid control ECU
Refer to DTC C1225/25: SM Solenoid Circuit
C1235/35*1 Foreign Object is Attached on Tip of Front Speed Sensor RH 1. Front speed sensor RH
2. Sensor installation
3. Speed sensor rotor
4. Skid control ECU
Refer to DTC C1235/35: Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36: Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1238/38: Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39: Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1275/75: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1277/77: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C1236/36*1 Foreign Object is Attached on Tip of Front Speed Sensor LH 1. Front speed sensor LH
2. Sensor installation
3. Speed sensor rotor
4. Skid control ECU
Refer to DTC C1235/35: Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36: Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1238/38: Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39: Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1275/75: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1277/77: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C1238/38*1 Foreign Object is Attached on Tip of Rear Speed Sensor RH 1. Rear speed sensor RH
2. Sensor installation
3. Speed sensor rotor
4. Skid control ECU
Refer to DTC C1235/35: Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36: Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1238/38: Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39: Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1275/75: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1277/77: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C1239/39*1 Foreign Object is Attached on Tip of Rear Speed Sensor LH 1. Rear speed sensor LH
2. Sensor installation
3. Speed sensor rotor
4. Skid control ECU
Refer to DTC C1235/35: Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36: Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1238/38: Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39: Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1275/75: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1277/77: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C1241/41 Low Battery Positive Voltage 1. ECU-IG RH fuse
2. Battery
3. Charging system
4. Power source circuit
5. Internal power supply circuit of the skid control ECU
Refer to DTC C1241/41: Low Battery Positive Voltage
C1243/43*1 Acceleration Sensor Stuck Malfunction 1. Yaw rate and acceleration
sensor
2. Yaw rate and acceleration
sensor circuit
Refer to DTC C0371/71: Yaw Rate Sensor (Test Mode DTC); DTC C1234/34: Yaw Rate Sensor Malfunction; DTC C1243/43: Acceleration Sensor Stuck Malfunction; DTC C1244/44: Open or Short in Acceleration Sensor Circuit; DTC C1245/45: Acceleration Sensor Output Malfunction; DTC C1279/79: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC); DTC C1381/97: Acceleration Sensor Power Supply Voltage Malfunction
C1244/44 Open or Short in Acceleration Sensor Circuit 1. Yaw rate and acceleration
sensor
2. Yaw rate and acceleration
sensor circuit
Refer to DTC C0371/71: Yaw Rate Sensor (Test Mode DTC); DTC C1234/34: Yaw Rate Sensor Malfunction; DTC C1243/43: Acceleration Sensor Stuck Malfunction; DTC C1244/44: Open or Short in Acceleration Sensor Circuit; DTC C1245/45: Acceleration Sensor Output Malfunction; DTC C1279/79: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC); DTC C1381/97: Acceleration Sensor Power Supply Voltage Malfunction
C1245/45*1 Acceleration Sensor Output Malfunction 1. Yaw rate and acceleration
sensor
2. Yaw rate and acceleration
sensor circuit
3. Sensor installation
Refer to DTC C0371/71: Yaw Rate Sensor (Test Mode DTC); DTC C1234/34: Yaw Rate Sensor Malfunction; DTC C1243/43: Acceleration Sensor Stuck Malfunction; DTC C1244/44: Open or Short in Acceleration Sensor Circuit; DTC C1245/45: Acceleration Sensor Output Malfunction; DTC C1279/79: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC); DTC C1381/97: Acceleration Sensor Power Supply Voltage Malfunction
C1246/46*2 Master Cylinder Pressure Sensor Malfunction 1. Master cylinder pressure sensor
2. Master cylinder pressure sensor circuit
3. Stop light switch circuit
4. Skid control ECU
Refer to DTC C1246/46: Master Cylinder Pressure Sensor Malfunction; DTC C1281/81: Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC)
C1249/49 Open in Stop Light Switch Circuit 1. STOP SW fuse
2. Stop light switch
3. Stop light switch circuit
4. Stop light control (BRK-LP) relay
5. Stop light control (BRK-LP) relay circuit
6. Skid control ECU
Refer to DTC C1249/49: Open in Stop Light Switch Circuit
C1251/51*1 Open in Pump Motor Circuit 1. Brake actuator assembly (Ground circuit)
2. Brake actuator assembly
(Motor circuit)
3. Skid control ECU
Refer to DTC C1251/51: Open in Pump Motor Circuit
C1267/67 Brake Pedal Load Sensing Switch 1. Brake pedal load sensing
switch
2. Brake pedal load sensing
switch circuit
Refer to DTC C1267/67: Brake Pedal Load Sensing Switch
C1300/62 Skid Control ECU Malfunction Skid control ECU Refer to DTC C1300/62: Skid Control ECU Malfunction
C1336/98 Zero Point Calibration of Acceleration Sensor Undone 1. Skid control ECU
2. Yaw rate and acceleration
sensor
3. Zero point calibration undone
Refer to DTC C1210/36: Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336/98: Zero Point Calibration of Acceleration Sensor Undone
C1361/91 Short Circuit in ABS Motor Fail Safe Relay Circuit 1. ABS1 fuse
2. ABS MOTOR1 (fail safe) relay
3. ABS MOTOR1 (fail safe) relay circuit
4. Brake actuator assembly
5. Skid control ECU
Refer to DTC C0273/13: Open in ABS Motor Relay Circuit; DTC C0274/14: Short to B+ in ABS Motor Relay Circuit; DTC C1361/91: Short Circuit in ABS Motor Fail Safe Relay Circuit
C1381/97 Acceleration Sensor Power Supply Voltage Malfunction 1. Yaw rate and acceleration
sensor
2. Yaw rate and acceleration
sensor power source circuit
Refer to DTC C0371/71: Yaw Rate Sensor (Test Mode DTC); DTC C1234/34: Yaw Rate Sensor Malfunction; DTC C1243/43: Acceleration Sensor Stuck Malfunction; DTC C1244/44: Open or Short in Acceleration Sensor Circuit; DTC C1245/45: Acceleration Sensor Output Malfunction; DTC C1279/79: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC); DTC C1381/97: Acceleration Sensor Power Supply Voltage Malfunction
U0073/94 Control Module Communication Bus OFF CAN communication system Refer to DTC U0073/94: Control Module Communication Bus OFF; DTC U0100/65: Lost Communication with ECM / PCM; DTC U0123/62: Lost Communication with Yaw Rate Sensor Module; DTC U0124/95: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/63: Lost Communication with Steering Angle Sensor Module
U0124/95 Lost Communication with Lateral Acceleration Sensor Module CAN communication system
(Skid control ECU to yaw rate and
acceleration sensor)
Refer to DTC U0073/94: Control Module Communication Bus OFF; DTC U0100/65: Lost Communication with ECM / PCM; DTC U0123/62: Lost Communication with Yaw Rate Sensor Module; DTC U0124/95: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/63: Lost Communication with Steering Angle Sensor Module

*1, *2:

Even after the trouble areas are repaired, the ABS warning light will not go off unless the following operations are performed:

HINT: 

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

VSC DTC CHART

DTC Code Detection Item Trouble Area See
43 ABS Control System Malfunction ABS control system Refer to DTC 43: ABS Control System Malfunction
C1201/51 Engine Control System Malfunction Engine control system Refer to DTC C1201/51: Engine Control System Malfunction
C1210/36 Zero Point Calibration of Yaw Rate Sensor Undone 1. Skid control ECU
2. Yaw rate and acceleration
sensor
3. Zero point calibration undone
Refer to DTC C1210/36: Zero Point Calibration of Yaw Rate Sensor Undone; DTC C1336/98: Zero Point Calibration of Acceleration Sensor Undone
C1231/31 Steering Angle Sensor Circuit Malfunction 1. Steering angle sensor
2. Steering angle sensor circuit
3. Steering angle sensor power
supply
4. Skid control ECU
Refer to DTC C1231/31: Steering Angle Sensor Circuit Malfunction
C1234/34 Yaw Rate Sensor Malfunction 1. Yaw rate and acceleration
sensor
2. Yaw rate and acceleration
sensor circuit
3. Sensor installation
Refer to DTC C0371/71: Yaw Rate Sensor (Test Mode DTC); DTC C1234/34: Yaw Rate Sensor Malfunction; DTC C1243/43: Acceleration Sensor Stuck Malfunction; DTC C1244/44: Open or Short in Acceleration Sensor Circuit; DTC C1245/45: Acceleration Sensor Output Malfunction; DTC C1279/79: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC); DTC C1381/97: Acceleration Sensor Power Supply Voltage Malfunction
C1290/66 Steering Angle Sensor Zero Point Malfunction 1. Yaw rate and acceleration
sensor zero point calibration
incomplete
2. Poor adjustment of the steering
wheel center position
3. Poor adjustment of front wheel
alignment
Refer to DTC C1290/66: Steering Angle Sensor Zero Point Malfunction
C1305/21 Solenoid Identification Circuit 1. Internal solenoid identification circuit of the brake actuator assembly
2. Skid control ECU
Refer to DTC C1305/21: Solenoid Identification Circuit
C1380/64 Stop Light Control Relay Malfunction 1. Stop light switch
2. Stop light switch circuit
3. Stop light control (BRK-LP) relay
4. Stop light control (BRK-LP) relay circuit
5. Skid control ECU
Refer to DTC C1380/64: Stop Light Control Relay Malfunction
U0100/65 Lost Communication with ECM / PCM CAN communication system
(Skid control ECU to ECM)
Refer to DTC U0073/94: Control Module Communication Bus OFF; DTC U0100/65: Lost Communication with ECM / PCM; DTC U0123/62: Lost Communication with Yaw Rate Sensor Module; DTC U0124/95: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/63: Lost Communication with Steering Angle Sensor Module
U0123/62 Lost Communication with Yaw Rate Sensor Module CAN communication system
(Skid control ECU to yaw rate and
acceleration sensor)
Refer to DTC U0073/94: Control Module Communication Bus OFF; DTC U0100/65: Lost Communication with ECM / PCM; DTC U0123/62: Lost Communication with Yaw Rate Sensor Module; DTC U0124/95: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/63: Lost Communication with Steering Angle Sensor Module
U0126/63 Lost Communication with Steering Angle Sensor Module CAN communication system
(Skid control ECU to steering
angle sensor)
Refer to DTC U0073/94: Control Module Communication Bus OFF; DTC U0100/65: Lost Communication with ECM / PCM; DTC U0123/62: Lost Communication with Yaw Rate Sensor Module; DTC U0124/95: Lost Communication with Lateral Acceleration Sensor Module; DTC U0126/63: Lost Communication with Steering Angle Sensor Module

HINT: 

In some cases, the Techstream cannot be used when the master caution indicator light remains on and the warning message is displayed on the multi-information display.

ABS TEST MODE DTC CHART

DTC Code Detection Item Trouble Area See
C1270/88 Initialization Incomplete (Test Mode DTC) 1. ECM
2. CAN communication system (Skid control ECU to ECM)
3. Skid control ECU
Refer to DTC C1203/59: ECM Communication Circuit Malfunction; DTC C1270/88: Initialization Incomplete (Test Mode DTC)
C1271/71 Low Output Signal of Front Speed Sensor RH (Test Mode DTC) 1. Front speed sensor RH
2. Sensor installation
3. Speed sensor rotor
Refer to DTC C0200/31: Front Speed Sensor RH Circuit; DTC C0205/32: Front Speed Sensor LH Circuit; DTC C1271/71: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272/72: Low Output Signal of Front Speed Sensor LH (Test Mode DTC)
C1272/72 Low Output Signal of Front Speed Sensor LH (Test Mode DTC) 1. Front speed sensor LH
2. Sensor installation
3. Speed sensor rotor
Refer to DTC C0200/31: Front Speed Sensor RH Circuit; DTC C0205/32: Front Speed Sensor LH Circuit; DTC C1271/71: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272/72: Low Output Signal of Front Speed Sensor LH (Test Mode DTC)
C1273/73 Low Output Signal of Rear Speed Sensor RH (Test Mode DTC) 1. Rear speed sensor RH
2. Sensor installation
3. Speed sensor rotor
Refer to DTC C0210/33: Rear Speed Sensor RH Circuit; DTC C0215/34: Rear Speed Sensor LH Circuit; DTC C1273/73: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C1274/74 Low Output Signal of Rear Speed Sensor LH (Test Mode DTC) 1. Rear speed sensor LH
2. Sensor installation
3. Speed sensor rotor
Refer to DTC C0210/33: Rear Speed Sensor RH Circuit; DTC C0215/34: Rear Speed Sensor LH Circuit; DTC C1273/73: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274/74: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C1275/75 Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC) Speed sensor rotor Refer to DTC C1235/35: Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36: Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1238/38: Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39: Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1275/75: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1277/77: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C1276/76 Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC) Speed sensor rotor Refer to DTC C1235/35: Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36: Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1238/38: Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39: Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1275/75: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1277/77: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C1277/77 Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC) Speed sensor rotor Refer to DTC C1235/35: Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36: Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1238/38: Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39: Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1275/75: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1277/77: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C1278/78 Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC) Speed sensor rotor Refer to DTC C1235/35: Foreign Object is Attached on Tip of Front Speed Sensor RH; DTC C1236/36: Foreign Object is Attached on Tip of Front Speed Sensor LH; DTC C1238/38: Foreign Object is Attached on Tip of Rear Speed Sensor RH; DTC C1239/39: Foreign Object is Attached on Tip of Rear Speed Sensor LH; DTC C1275/75: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276/76: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1277/77: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278/78: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)
C1279/79 Acceleration Sensor Output Voltage Malfunction (Test Mode DTC) 1. Sensor installation
2. Yaw rate and acceleration
sensor
Refer to DTC C0371/71: Yaw Rate Sensor (Test Mode DTC); DTC C1234/34: Yaw Rate Sensor Malfunction; DTC C1243/43: Acceleration Sensor Stuck Malfunction; DTC C1244/44: Open or Short in Acceleration Sensor Circuit; DTC C1245/45: Acceleration Sensor Output Malfunction; DTC C1279/79: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC); DTC C1381/97: Acceleration Sensor Power Supply Voltage Malfunction
C1281/81 Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC) 1. Stop light switch
2. Brake pedal load sensing switch
3. Master cylinder pressure sensor
Refer to DTC C1246/46: Master Cylinder Pressure Sensor Malfunction; DTC C1281/81: Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC)
VSC TEST MODE DTC CHART

DTC Code Detection Item Trouble Area See
C0371/71 Yaw Rate Sensor (Test Mode DTC) Yaw rate and acceleration sensor Refer to DTC C0371/71: Yaw Rate Sensor (Test Mode DTC); DTC C1234/34: Yaw Rate Sensor Malfunction; DTC C1243/43: Acceleration Sensor Stuck Malfunction; DTC C1244/44: Open or Short in Acceleration Sensor Circuit; DTC C1245/45: Acceleration Sensor Output Malfunction; DTC C1279/79: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC); DTC C1381/97: Acceleration Sensor Power Supply Voltage Malfunction