Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2012 Lexus CT 200h. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

When replacing the brake booster with master cylinder (skid control ECU), sensor, etc., make sure that the power switch is turned off, the stop light switch is off, and 2 minutes have elapsed since the driver's door was closed.

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 displayed during the DTC check, check the circuit indicated by the DTC. For details of each code, refer to the respective "DTC Code" in the DTC chart.
When 2 or more DTCs are detected, perform circuit inspections one by one until the problem is identified.
Inspect the fuses and relays before inspecting the trouble areas as shown in the table below.

ABS DTC

VSC DTC

DTC Code	Detection Item	INF Code	Trouble Area	See
43	ABS Control System Malfunction	-	ABS control system	Refer to DTC 36: ABS Control System Malfunction; DTC 43: ABS Control System Malfunction
45	Electronically Controlled Brake System Malfunction	-	Electronically controlled brake system	Refer to DTC 42: Electronically Controlled Brake System Malfunction; DTC 45: Electronically Controlled Brake System Malfunction
C1210/36	Zero Point Calibration of Yaw Rate Sensor Undone	-	1. Zero point calibration undone 2. Yaw rate and acceleration sensor 3. Brake booster with master cylinder (Skid control ECU) (Perform zero point calibration and check for DTCs. If no DTCs are output again, the sensor is normal.)	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	701 702 703	Steering angle sensor internal malfunction	Refer to DTC C1231/31: Steering Angle Sensor Circuit Malfunction
C1234/34	Yaw Rate Sensor Malfunction	711 712 713 714	Yaw rate and acceleration sensor internal malfunction	Refer to 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	751	1. Yaw rate and acceleration 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 C1290/66: Steering Angle Sensor Zero Point Malfunction
C1310/51	Malfunction in HV system	-	Power management control ECU	Refer to DTC C1259/58: HV System Regenerative Malfunction; DTC C1310/51: Malfunction in HV system
C1380/64	Stop Light Control Relay Malfunction	761 762	1. Stop light switch 2. Stop light switch circuit 3. Stop light control relay 4. Stop light control relay circuit 5. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1380/64: Stop Light Control Relay Malfunction
C1439/66	Steering Angle Sensor Initialization Incomplete	752	1. Steering angle sensor 2. Yaw rate and acceleration sensor 3. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1439/66: Steering Angle Sensor Initialization Incomplete; DTC C1445/66: Vehicle Driven with Steering Angle Sensor not Initialized
C1440/98	Unusual Bank Angle Detected	-	Yaw rate and acceleration sensor	Refer to DTC C1440/98: Unusual Bank Angle Detected
C1443/34	Invalid Data Received from Yaw Rate Sensor	715	Yaw rate and acceleration sensor	Refer to DTC C1442/44: Invalid Data Received from Acceleration Sensor; DTC C1443/34: Invalid Data Received from Yaw Rate Sensor
C1445/66	Vehicle Driven with Steering Angle Sensor not Initialized	753	1. Steering angle sensor 2. Yaw rate and acceleration sensor 3. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1439/66: Steering Angle Sensor Initialization Incomplete; DTC C1445/66: Vehicle Driven with Steering Angle Sensor not Initialized
U0123/62	Lost Communication with Yaw Rate Sensor Module	731 732	1. CAN communication line (CAN No. 1 bus) 2. Yaw rate and acceleration sensor 3. Brake booster with master cylinder (Skid control ECU)	Refer to DTC U0073/94: Control Module Communication Bus OFF; 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; DTC U0293/59: Communication Error from HV ECU
U0126/63	Lost Communication with Steering Angle Sensor Module	741 742	1. CAN communication line (CAN No. 1 bus) 2. Steering angle sensor 3. Brake booster with master cylinder (Skid control ECU)	Refer to DTC U0073/94: Control Module Communication Bus OFF; 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; DTC U0293/59: Communication Error from HV ECU

ELECTRONICALLY CONTROLLED BRAKE SYSTEM DTC

DTC Code	Detection Item	INF Code	Trouble Area	See
36	ABS Control System Malfunction	-	ABS control system	Refer to DTC 36: ABS Control System Malfunction; DTC 43: ABS Control System Malfunction
C1202/68	Master Reservoir Level Malfunction	371	1. Low brake fluid level 2. Brake fluid leaks 3. Brake master cylinder reservoir (Brake fluid level warning switch) internal open circuit 4. Brake master cylinder reservoir (Brake fluid level warning switch) internal short circuit 5. Open in wire harness 6. Short in wire harness 7. Brake disc rotor excessive wear 8. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1202/68: Master Reservoir Level Malfunction
C1203/95	ECM Communication Circuit Malfunction	-	1. The wrong ECU or sensor was installed 2. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1203/95: ECM Communication Circuit Malfunction
C1211/25	SLA Linear Solenoid	21 22 23 24	1. Supply voltage reduced 2. Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1211/25: SLA Linear Solenoid; DTC C1212/26: SLR Linear Solenoid; DTC C1225/31: SA1 Solenoid Circuit; DTC C1226/32: SA2 Solenoid Circuit; DTC C1227/33: SA3 Solenoid Circuit; DTC C1228/34: STR Solenoid Circuit; DTC C1352/21: FR Solenoid; DTC C1353/23: RR Solenoid; DTC C1356/22: FL Solenoid; DTC C1357/24: RL Solenoid
C1212/26	SLR Linear Solenoid	31 32 33 34	1. Supply voltage reduced 2. Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1211/25: SLA Linear Solenoid; DTC C1212/26: SLR Linear Solenoid; DTC C1225/31: SA1 Solenoid Circuit; DTC C1226/32: SA2 Solenoid Circuit; DTC C1227/33: SA3 Solenoid Circuit; DTC C1228/34: STR Solenoid Circuit; DTC C1352/21: FR Solenoid; DTC C1353/23: RR Solenoid; DTC C1356/22: FL Solenoid; DTC C1357/24: RL Solenoid
C1214/62	Hydraulic Control System Malfunction	431 432 433 434 435 436 437 438	1. Brake fluid leaks 2. Brake disc rotor excessive wear 3. Brake booster with master cylinder (Brake actuator)	Refer to DTC C1214/62: Hydraulic Control System Malfunction
C1225/31	SA1 Solenoid Circuit	41 42 43 44	1. Supply voltage reduced 2. Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1211/25: SLA Linear Solenoid; DTC C1212/26: SLR Linear Solenoid; DTC C1225/31: SA1 Solenoid Circuit; DTC C1226/32: SA2 Solenoid Circuit; DTC C1227/33: SA3 Solenoid Circuit; DTC C1228/34: STR Solenoid Circuit; DTC C1352/21: FR Solenoid; DTC C1353/23: RR Solenoid; DTC C1356/22: FL Solenoid; DTC C1357/24: RL Solenoid
C1226/32	SA2 Solenoid Circuit	51 52 53 54	1. Supply voltage reduced 2. Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1211/25: SLA Linear Solenoid; DTC C1212/26: SLR Linear Solenoid; DTC C1225/31: SA1 Solenoid Circuit; DTC C1226/32: SA2 Solenoid Circuit; DTC C1227/33: SA3 Solenoid Circuit; DTC C1228/34: STR Solenoid Circuit; DTC C1352/21: FR Solenoid; DTC C1353/23: RR Solenoid; DTC C1356/22: FL Solenoid; DTC C1357/24: RL Solenoid
C1227/33	SA3 Solenoid Circuit	61 62 63 64	1. Supply voltage reduced 2. Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1211/25: SLA Linear Solenoid; DTC C1212/26: SLR Linear Solenoid; DTC C1225/31: SA1 Solenoid Circuit; DTC C1226/32: SA2 Solenoid Circuit; DTC C1227/33: SA3 Solenoid Circuit; DTC C1228/34: STR Solenoid Circuit; DTC C1352/21: FR Solenoid; DTC C1353/23: RR Solenoid; DTC C1356/22: FL Solenoid; DTC C1357/24: RL Solenoid
C1228/34	STR Solenoid Circuit	71 72 73 74	1. Supply voltage reduced 2. Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1211/25: SLA Linear Solenoid; DTC C1212/26: SLR Linear Solenoid; DTC C1225/31: SA1 Solenoid Circuit; DTC C1226/32: SA2 Solenoid Circuit; DTC C1227/33: SA3 Solenoid Circuit; DTC C1228/34: STR Solenoid Circuit; DTC C1352/21: FR Solenoid; DTC C1353/23: RR Solenoid; DTC C1356/22: FL Solenoid; DTC C1357/24: RL Solenoid
C1242/42	Open in IG1 / IG2 Power Source Circuit	111 112	1. Open or short in IG1 circuit 2. Open or short in IG2 circuit 3. Improperly connected connector, deformation or corrosion of terminals 4. Smart access system with push-button start (IG start circuit) 5. Auxiliary battery 6. Hybrid control system (Charging circuit) 7. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1241/41: Low Battery Positive Voltage; DTC C1242/42: Open in IG1 / IG2 Power Source Circuit
C1246/46	Master Cylinder Pressure Sensor Malfunction	201 202 203 204 207	1. Brake pedal stroke sensor 2. Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1246/46: Master Cylinder Pressure Sensor Malfunction; DTC C1281/81: Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC); DTC C1364/61: Wheel Cylinder Pressure Sensor Malfunction
C1247/47	Stroke Sensor Malfunction	211 212 213 214 215 218 219 223	1. Open or short in brake pedal stroke sensor power supply circuit 2. Open or short in wire harness 3. Improperly connected connector, deformation or corrosion of terminals 4. Brake pedal stroke sensor 5. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1247/47: Stroke Sensor Malfunction; DTC C1346/71: Stroke Sensor Zero Point Learning Malfunction (Test Mode DTC); DTC C1392/48: Stroke Sensor Zero Point Calibration Undone
C1249/49	Open in Stop Light Switch Circuit	231	1. STOP fuse 2. Stop light switch 3. Stop light switch circuit 4. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1249/49: Open in Stop Light Switch Circuit
C1252/52	Brake Booster Pump Motor on Time Abnormally Long	311	1. Short in motor circuit or motor monitor circuit 2. Motor relay stuck 3. Accumulator pressure sensor malfunction in brake actuator 4. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1252/52: Brake Booster Pump Motor on Time Abnormally Long; DTC C1253/53: Pump Motor Relay Malfunction
C1253/53	Pump Motor Relay Malfunction	321 322 323 324 325 326 327 328 329	1. Open or short in motor circuit or motor monitor circuit 2. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1252/52: Brake Booster Pump Motor on Time Abnormally Long; DTC C1253/53: Pump Motor Relay Malfunction
C1256/56	Accumulator Low Pressure	341	1. Accumulator pressure dropped due to frequent brake pedal operation (not a malfunction) 2. Pump motor malfunction 3. Accumulator deterioration 4. Accumulator pressure sensor 5. Supply voltage reduced	Refer to DTC C1256/56: Accumulator Low Pressure
C1257/57	Power Supply Drive Circuit	361 362	Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1257/57: Power Supply Drive Circuit
C1259/58	HV System Regenerative Malfunction	-	Power management control ECU	Refer to DTC C1259/58: HV System Regenerative Malfunction; DTC C1310/51: Malfunction in HV system
C1300	Skid Control ECU Malfunction	-	Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1300: Skid Control ECU Malfunction
C1311/11	Open in Main Relay 1 Circuit	1	1. Open or short in ABS main relay circuit 2. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1311/11: Open in Main Relay 1 Circuit; DTC C1312/12: Short in Main Relay 1 Circuit
C1312/12	Short in Main Relay 1 Circuit	2	1. Short in ABS main relay circuit 2. ABS main relay internal stuck 3. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1311/11: Open in Main Relay 1 Circuit; DTC C1312/12: Short in Main Relay 1 Circuit
C1345/66	Linear Solenoid Valve Offset Learning Undone	-	Perform linear valve offset learning and check for DTCs. If no DTCs are output again, the valve is normal.	Refer to DTC C1345/66: Linear Solenoid Valve Offset Learning Undone; DTC C1368/67: Linear Solenoid Valve Offset Malfunction
C1352/21	FR Solenoid	11 12	Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1211/25: SLA Linear Solenoid; DTC C1212/26: SLR Linear Solenoid; DTC C1225/31: SA1 Solenoid Circuit; DTC C1226/32: SA2 Solenoid Circuit; DTC C1227/33: SA3 Solenoid Circuit; DTC C1228/34: STR Solenoid Circuit; DTC C1352/21: FR Solenoid; DTC C1353/23: RR Solenoid; DTC C1356/22: FL Solenoid; DTC C1357/24: RL Solenoid
C1353/23	RR Solenoid	15 16	Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1211/25: SLA Linear Solenoid; DTC C1212/26: SLR Linear Solenoid; DTC C1225/31: SA1 Solenoid Circuit; DTC C1226/32: SA2 Solenoid Circuit; DTC C1227/33: SA3 Solenoid Circuit; DTC C1228/34: STR Solenoid Circuit; DTC C1352/21: FR Solenoid; DTC C1353/23: RR Solenoid; DTC C1356/22: FL Solenoid; DTC C1357/24: RL Solenoid
C1356/22	FL Solenoid	13 14	Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1211/25: SLA Linear Solenoid; DTC C1212/26: SLR Linear Solenoid; DTC C1225/31: SA1 Solenoid Circuit; DTC C1226/32: SA2 Solenoid Circuit; DTC C1227/33: SA3 Solenoid Circuit; DTC C1228/34: STR Solenoid Circuit; DTC C1352/21: FR Solenoid; DTC C1353/23: RR Solenoid; DTC C1356/22: FL Solenoid; DTC C1357/24: RL Solenoid
C1357/24	RL Solenoid	17 18	Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1211/25: SLA Linear Solenoid; DTC C1212/26: SLR Linear Solenoid; DTC C1225/31: SA1 Solenoid Circuit; DTC C1226/32: SA2 Solenoid Circuit; DTC C1227/33: SA3 Solenoid Circuit; DTC C1228/34: STR Solenoid Circuit; DTC C1352/21: FR Solenoid; DTC C1353/23: RR Solenoid; DTC C1356/22: FL Solenoid; DTC C1357/24: RL Solenoid
C1364/61	Wheel Cylinder Pressure Sensor Malfunction	421 422 423 424 426	Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1246/46: Master Cylinder Pressure Sensor Malfunction; DTC C1281/81: Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC); DTC C1364/61: Wheel Cylinder Pressure Sensor Malfunction
C1365/54	Accumulator Pressure Sensor Malfunction	331 332 333 334	Brake booster with master cylinder (Skid control ECU or brake actuator)	Refer to DTC C1365/54: Accumulator Pressure Sensor Malfunction
C1368/67	Linear Solenoid Valve Offset Malfunction	-	1. Perform linear valve offset learning and check for DTCs. If no DTCs are output again, the valve is normal. 2. Brake booster with master cylinder (Brake actuator)	Refer to DTC C1345/66: Linear Solenoid Valve Offset Learning Undone; DTC C1368/67: Linear Solenoid Valve Offset Malfunction
C1391/69	Accumulator Leak Malfunction	351	1. Brake fluid leaks 2. Brake booster with master cylinder (Brake actuator) (Malfunctioning internal seal, low gas pressure in accumulator, etc.)	Refer to DTC C1391/69: Accumulator Leak Malfunction
C1392/48	Stroke Sensor Zero Point Calibration Undone	-	1. Brake pedal stroke sensor zero point calibration incomplete (Initialization and calibration of linear solenoid valve incomplete) 2. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1247/47: Stroke Sensor Malfunction; DTC C1346/71: Stroke Sensor Zero Point Learning Malfunction (Test Mode DTC); DTC C1392/48: Stroke Sensor Zero Point Calibration Undone
C1451/72	Motor Drive Permission Malfunction	-	1. Brake fluid leaks 2. Air bleeding not performed	Refer to DTC C1451/72: Motor Drive Permission Malfunction
U0073/94	Control Module Communication Bus OFF	461 462 463 464 465 466	1. CAN communication line (CAN No. 1 bus) 2. Yaw rate and acceleration sensor 3. Steering angle sensor 4. Brake booster with master cylinder (Skid control ECU)	Refer to DTC U0073/94: Control Module Communication Bus OFF; 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; DTC U0293/59: Communication Error from HV ECU
U0293/59	Communication Error from HV ECU	411 412 413	1. CAN communication line (Power management bus) 2. Power management control ECU 3. Brake booster with master cylinder (Skid control ECU)	Refer to DTC U0073/94: Control Module Communication Bus OFF; 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; DTC U0293/59: Communication Error from HV ECU

ABS AND ELECTRONICALLY CONTROLLED BRAKE SYSTEM DTC

DTC Code	Detection Item	INF Code	Trouble Area	See
C1241/41	Low Battery Positive Voltage	1011 1021 5512 5522 553*2	1. Improperly connected connector, deformation or corrosion of terminals 2. Auxiliary battery 3. Hybrid control system (Charging circuit) 4. Brake booster with master cylinder (Skid control ECU)	Refer to DTC C1241/41: Low Battery Positive Voltage; DTC C1242/42: Open in IG1 / IG2 Power Source Circuit

*1: Electronically Controlled Brake System DTC

*2: ABS DTC

ABS TEST MODE DTC

DTC Code	Detection Item	INF Code	Trouble Area	See
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 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); DTC C1464/31: Front Speed Sensor RH Circuit; DTC C1465/32: Front Speed Sensor LH Circuit
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 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); DTC C1464/31: Front Speed Sensor RH Circuit; DTC C1465/32: Front Speed Sensor LH Circuit
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 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); DTC C1466/33: Rear Speed Sensor RH Circuit; DTC C1467/34: Rear Speed Sensor LH Circuit
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 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); DTC C1466/33: Rear Speed Sensor RH Circuit; DTC C1467/34: Rear Speed Sensor LH Circuit
C1275/75	Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)	-	1. Front speed sensor RH 2. 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)	-	1. Front speed sensor LH 2. 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)	-	1. Rear speed sensor RH 2. 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)	-	1. Rear speed sensor LH 2. 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 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. Regulator pressure sensor	Refer to DTC C1246/46: Master Cylinder Pressure Sensor Malfunction; DTC C1281/81: Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC); DTC C1364/61: Wheel Cylinder Pressure Sensor Malfunction

ELECTRONICALLY CONTROLLED BRAKE SYSTEM TEST MODE DTC

DTC Code	Detection Item	INF Code	Trouble Area	See
C1346/71	Stroke Sensor Zero Point Learning Malfunction (Test Mode DTC)	-	1. Brake pedal stroke sensor 2. Brake pedal stroke sensor circuit	Refer to DTC C1247/47: Stroke Sensor Malfunction; DTC C1346/71: Stroke Sensor Zero Point Learning Malfunction (Test Mode DTC); DTC C1392/48: Stroke Sensor Zero Point Calibration Undone