ELECTRONICALLY CONTROLLED BRAKE SYSTEM DIAGNOSTIC TROUBLE CODE CHART

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.

Tech Tips


  • 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 page for 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
DTC Code Detection Item INF Code See page
42 Electronically Controlled Brake System Malfunction -

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C1235/35 Foreign Object is Attached on Tip of Front Speed Sensor RH 541

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C1236/36 Foreign Object is Attached on Tip of Front Speed Sensor LH 542

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C1238/38 Foreign Object is Attached on Tip of Rear Speed Sensor RH 543

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C1239/39 Foreign Object is Attached on Tip of Rear Speed Sensor LH 544

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C1336/98 Zero Point Calibration of Acceleration Sensor Undone -

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C1381/97 Acceleration Sensor Power Supply Voltage Malfunction 601

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C1442/44 Invalid Data Received from Acceleration Sensor 572

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C1243/43 Acceleration Sensor Stuck Malfunction

561

562

563

564

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C1244/44 Open or Short in Acceleration Sensor Circuit 571

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C1245/45 Acceleration Sensor Output Malfunction 581

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C1464/31 Front Speed Sensor RH Circuit

501

502

503

504

506

507

508

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C1465/32 Front Speed Sensor LH Circuit

511

512

513

514

516

517

518

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C1466/33 Rear Speed Sensor RH Circuit

521

522

523

524

526

527

528

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C1467/34 Rear Speed Sensor LH Circuit

531

532

533

534

536

537

538

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U0124/95 Lost Communication with Lateral Acceleration Sensor Module

591

592

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VSC DTC
DTC Code Detection Item INF Code See page
43 ABS Control System Malfunction -

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45 Electronically Controlled Brake System Malfunction -

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C1210/36 Zero Point Calibration of Yaw Rate Sensor Undone -

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C1231/31 Steering Angle Sensor Circuit Malfunction

701

702

703

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C1234/34 Yaw Rate Sensor Malfunction

711

712

713

714

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C1290/66 Steering Angle Sensor Zero Point Malfunction 751

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C1310/51 Malfunction in HV system -

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C1380/64 Stop Light Control Relay Malfunction

761

762

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C1439/66 Steering Angle Sensor Initialization Incomplete 752

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C1440/98 Unusual Bank Angle Detected -

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C1443/34 Invalid Data Received from Yaw Rate Sensor 715

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C1445/66 Vehicle Driven with Steering Angle Sensor not Initialized 753

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U0123/62 Lost Communication with Yaw Rate Sensor Module

731

732

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U0126/63 Lost Communication with Steering Angle Sensor Module

741

742

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Electronically Controlled Brake System DTC
DTC Code Detection Item INF Code See page
36 ABS Control System Malfunction -

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C1202/68 Master Reservoir Level Malfunction 371

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C1203/95 ECM Communication Circuit Malfunction -

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C1211/25 SLA Linear Solenoid

21

22

23

24

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C1212/26 SLR Linear Solenoid

31

32

33

34

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C1214/62 Hydraulic Control System Malfunction

431

432

433

434

435

436

437

438

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C1225/31 SA1 Solenoid Circuit

41

42

43

44

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C1226/32 SA2 Solenoid Circuit

51

52

53

54

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C1227/33 SA3 Solenoid Circuit

61

62

63

64

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C1228/34 STR Solenoid Circuit

71

72

73

74

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C1242/42 Open in IG1 / IG2 Power Source Circuit

111

112

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C1246/46 Master Cylinder Pressure Sensor Malfunction

201

202

203

204

207

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C1247/47 Stroke Sensor Malfunction

211

212

213

214

215

219

223

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C1249/49 Open in Stop Light Switch Circuit 231

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C1252/52 Brake Booster Pump Motor on Time Abnormally Long 311

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C1253/53 Pump Motor Relay Malfunction

321

322

323

324

325

326

327

328

329

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C1256/56 Accumulator Low Pressure 341

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C1257/57 Power Supply Drive Circuit

361

362

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C1259/58 HV System Regenerative Malfunction -

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C1300 Skid Control ECU Malfunction -

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C1311/11 Open in Main Relay 1 Circuit 1

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C1312/12 Short in Main Relay 1 Circuit 2

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C1345/66 Linear Solenoid Valve Offset Learning Undone -

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C1352/21 FR Solenoid

11

12

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C1353/23 RR Solenoid

15

16

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C1356/22 FL Solenoid

13

14

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C1357/24 RL Solenoid

17

18

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C1364/61 Wheel Cylinder Pressure Sensor Malfunction

421

422

423

424

426

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C1365/54 Accumulator Pressure Sensor Malfunction

331

332

333

334

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C1368/67 Linear Solenoid Valve Offset Malfunction -

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C1391/69 Accumulator Leak Malfunction 351

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C1392/48 Stroke Sensor Zero Point Calibration Undone -

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C1451/72 Motor Drive Permission Malfunction -

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U0073/94 Control Module Communication Bus OFF

461

462

463

464

465

466

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U0293/59 Communication Error from HV ECU

411

412

413

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ABS and Electronically Controlled Brake System DTC
DTC Code Detection Item INF Code See page
C1241/41 Low Battery Positive Voltage

101*1

102*1

551*2

552*2

553*2

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*1: Electronically Controlled Brake System DTC

*2: ABS DTC

ABS Test Mode DTC
DTC Code Detection Item INF Code See page
C1271/71 Low Output Signal of Front Speed Sensor RH (Test Mode DTC) -

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C1272/72 Low Output Signal of Front Speed Sensor LH (Test Mode DTC) -

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C1273/73 Low Output Signal of Rear Speed Sensor RH (Test Mode DTC) -

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C1274/74 Low Output Signal of Rear Speed Sensor LH (Test Mode DTC) -

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C1275/75 Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC) -

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C1276/76 Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC) -

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C1277/77 Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC) -

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C1278/78 Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC) -

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C1279/79 Acceleration Sensor Output Voltage Malfunction (Test Mode DTC) -

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C1281/81 Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC) -

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Electronically Controlled Brake System Test Mode DTC
DTC Code Detection Item INF Code See page
C1346/71 Stroke Sensor Zero Point Learning Malfunction (Test Mode DTC) -

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