ELECTRONICALLY CONTROLLED BRAKE SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Note

When replacing the skid control ECU assembly, 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 assembly 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
C1235	Foreign Object is Attached on Tip of Front Speed Sensor RH	302	Click here
C1236	Foreign Object is Attached on Tip of Front Speed Sensor LH	303	Click here
C1238	Foreign Object is Attached on Tip of Rear Speed Sensor RH	304	Click here
C1239	Foreign Object is Attached on Tip of Rear Speed Sensor LH	305	Click here
C1240	Yaw Rate Sensor Discrimination	321	Click here
C1243	Deceleration Sensor Stuck	311 312 317	Click here
C1244	Open or Short Circuit in Deceleration Sensor Circuit	314	Click here
C1245	Abnormal Output in Deceleration Sensor	313	Click here
C1336	Zero Point Calibration of Deceleration Sensor undone	318	Click here
C1381	Abnormal Power Supply Voltage in Yaw Rate and/or Deceleration Sensor	315	Click here
C1442	Invalid Data Received from Acceleration Sensor	322	Click here
C1464	Front Speed Sensor RH Circuit	251 252 253 254 255 262	Click here
C1465	Front Speed Sensor LH Circuit	264 265 266 267 268 275	Click here
C1466	Rear Speed Sensor RH Circuit	277 278 279 280 281 288	Click here
C1467	Rear Speed Sensor LH Circuit	290 291 292 293 294 301	Click here
U0124	Lost Communication with Lateral Acceleration Sensor Module	319 320	Click here

VSC DTC
DTC Code	Detection Item	INF CODE	See page
C120E	DRS Control System	-	Click here
C1210	Zero Point Calibration of Yaw Rate Sensor Undone	336	Click here
C1231	Steering Angle Sensor Circuit	341 343	Click here
C1234	Yaw Rate Sensor	333 334 335 337	Click here
C1289	VGRS Control System Malfunction	372 373	Click here
C1290	Abnormal Zero Point of Steering Angle Sensor	351	Click here
C1310	HV System Malfunction	-	Click here
C1439	Steering Angle Sensor Initialization Incomplete	352	Click here
C1440	Unusual Bank Angle Detected	630	Click here
C1443	Invalid Data Received from Yaw Rate Sensor	340	Click here
C1445	Vehicle Driven with Steering Angle Sensor not Initialized	353	Click here
U0123	Lost Communication with Yaw Rate Sensor Module	338 339	Click here
U0126	Lost Communication with Steering Angle Sensor Module	350 601	Click here
U0130	Lost Communication with Steering Effort Control Module	370 371	Click here
U0134	Lost Communication with DRS Module	440 441	Click here

Electronically Controlled Brake System DTC
DTC Code	Detection Item	INF CODE	See page
C1202	Master Reservoir Level Malfunction	511 512	Click here
C1203	ECM Communication Circuit	-	Click here
C1242	Open in IG1 / IG2 Power Source Circuit	87 88	Click here
C1246	Master Cylinder Pressure Sensor Malfunction	191 192 194 195 197 198 199 200 201 202 205	Click here
C1247	Stroke Sensor	171 172 173 174 175 181 182 183	Click here
C1249	Open in Stop Light Switch Circuit	520	Click here
C1252	Brake Booster Pump Motor on Time Abnormally Long	130	Click here
C1253	Pump Motor Relay	134 138 140	Click here
C1256	Accumulator Low Pressure	141 143	Click here
C1259	HV System Regenerative Malfunction	-	Click here
C1300	Skid Control ECU Malfunction	1001 to 1087 1089 to 1094 1101 to 1113 1116 1118 1119 1121 to 1132 1133 to 1136	Click here
C1311	Open Circuit in Main Relay 1	1	Click here
C1312	Short Circuit in Main Relay 1	3	Click here
C1313	Open Circuit in Main Relay 2	4	Click here
C1314	Short Circuit in Main Relay 2	6	Click here
C1315	SMC1 Changeover Solenoid	61 62 63 64	Click here
C1316	SMC2 Changeover Solenoid	66 67 68 69	Click here
C1341	Hydraulic System Malfunction (FR)	551 552 553 554 555	Click here
C1342	Hydraulic System Malfunction (FL)	561 562 563 564 565	Click here
C1343	Hydraulic System Malfunction (RR)	571 572 573 574 575	Click here
C1344	Hydraulic System Malfunction (RL)	581 582 583 584 585	Click here
C1345	Linear Solenoid Valve Offset Learning Undone	501 502 503 504	Click here
C1352	Increasing Pressure Solenoid (FR)	11 12 13 14	Click here
C1353	Increasing Pressure Solenoid (FL)	21 22 23 24	Click here
C1354	Increasing Pressure Solenoid (RR)	31 32 33 34	Click here
C1355	Increasing Pressure Solenoid (RL)	41 42 43 44	Click here
C1356	Decreasing Pressure Solenoid (FR)	16 17 18 19	Click here
C1357	Decreasing Pressure Solenoid (FL)	26 27 28 29	Click here
C1358	Decreasing Pressure Solenoid (RR)	36 37 38 39	Click here
C1359	Decreasing Pressure Solenoid (RL)	46 47 48 49	Click here
C1364	Wheel Cylinder Pressure Sensor	221 222 224 225 227 228 230 231 233 234 236 237 239 240 242 243	Click here
C1365	Accumulator Pressure Sensor	211 212 214 215	Click here
C1368	Linear Solenoid Valve Offset	505	Click here
C1377	Capacitor Malfunction	101 102 103 105 106 108 109 110	Click here
C1378	Capacitor Communication Malfunction	112	Click here
C1391	Abnormal Leak in Accumulator	591	Click here
C1392	Zero Point Calibration of Stroke Sensor undone	-	Click here
C1438	Lost Communication with HV ECU	154 157	Click here
U0073	Control Module Communication Bus OFF	400 401 402 403 404 406 407 411 412	Click here
U0120	Lost Communication with Starter / Generator Control Module	471	Click here
U0293	Lost Communication with Hybrid Vehicle Control System	152 153	Click here

ABS and Electronically Controlled Brake System DTC
DTC Code	Detection Item	INF CODE	See page
C1241	Low or High Power Supply Voltage	811 821 831 912 922 932 94*2	Click here

*1: ABS DTC
*2: Electronically Controlled Brake System DTC

Brake hold DTC
DTC Code	Detection Item	INF CODE	See page
C1310	HV System Malfunction	-	Click here
C1380	Stop Light Control Relay Malfunction	391 392	Click here
C13AF	EPB System Malfunction	420	Click here
U0128	Lost Communication With EPB Module	425	Click here

ABS Test Mode DTC
DTC Code	Detection Item	INF CODE	See page
C1271	Low Output Signal of Front Speed Sensor RH (Test Mode DTC)	-	Click here
C1272	Low Output Signal of Front Speed Sensor LH (Test Mode DTC)	-	Click here
C1273	Low Output Signal of Rear Speed Sensor RH (Test Mode DTC)	-	Click here
C1274	Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)	-	Click here
C1275	Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)	-	Click here
C1276	Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)	-	Click here
C1277	Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC)	-	Click here
C1278	Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)	-	Click here
C1279	Abnormal Output Voltage in Deceleration Sensor (Test Mode DTC)	-	Click here
C1281	Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC)	-	Click here

Electronically Controlled Brake System Test Mode DTC
DTC Code	Detection Item	INF CODE	See page
C1346	Abnormal Learning of Stroke Sensor Zero Point (Test Mode DTC)	-	Click here