Diagnostic Trouble Code Chart

HINT:

• If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "DTC Code" below.
• Inspect the fuses and relays before investigating the trouble areas as shown in the table below.
  Fig 1: Identifying ABS Warning Light

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  DTC chart of ABS 

  DTC CHART OF ABS
  
  

  DTC Code	Detection Item	Information Code	Trouble Area
  C0200/31	Front Speed Sensor RH Circuit	251 252 253 254 255 256 257 258 259 260 261 262	Front speed sensor RH Speed sensor circuit Sensor installation Speed sensor rotor Skid control ECU
  C0205/32	Front Speed Sensor LH Circuit	264 265 266 267 268 269 270 271 272 273 274 275	Front speed sensor LH Speed sensor circuit Sensor installation Speed sensor rotor Skid control ECU
  C0210/33	Rear Speed Sensor RH Circuit	277 278 279 280 281 282 283 284 285 286 287 288	Rear speed sensor RH Speed sensor circuit Sensor installation Speed sensor rotor Skid control ECU
  C0215/34	Rear Speed Sensor LH Circuit	290 291 292 293 294 295 296 297 298 299 300 301	Rear speed sensor LH Speed sensor circuit Sensor installation Speed sensor rotor Skid control ECU
  C1235/35	Foreign Object is Attached on Tip of Front Speed Sensor RH	302	Front speed sensor RH Speed sensor circuit Sensor installation Speed sensor rotor Skid control ECU
  C1236/36	Foreign Object is Attached on Tip of Front Speed Sensor LH	303	Front speed sensor LH Speed sensor circuit Sensor installation Speed sensor rotor Skid control ECU
  C1238/38	Foreign Object is Attached on Tip of Rear Speed Sensor RH	304	Rear speed sensor RH Speed sensor circuit Sensor installation Speed sensor rotor Skid control ECU
  C1239/39	Foreign Object is Attached on Tip of Rear Speed Sensor LH	305	Rear speed sensor LH Speed sensor circuit Sensor installation Speed sensor rotor Skid control ECU
  C1240/95	Yaw Rate Sensor Discrimination	321	Proper yaw rate and acceleration sensor not installed Skid control ECU
  C1243/43	Acceleration Sensor Stuck Malfunction	311 312 317	Yaw rate and acceleration sensor Skid control ECU
  C1244/44	Open or Short in Deceleration Sensor Circuit	314	Zero point calibration undone Sensor installation Yaw rate and acceleration sensor Skid control ECU
  C1245/45	Acceleration Sensor Output Malfunction	313	Yaw rate and acceleration sensor Yaw rate and acceleration sensor circuit Skid control ECU
  C1336/98	Zero Point Calibration of Acceleration Sensor Undone	-	Skid control ECU Zero point calibration undone Yaw rate and acceleration sensor
  C1381/97	Acceleration Sensor Power Supply Voltage Malfunction	315	Yaw rate and acceleration sensor Zero point calibration undone Yaw rate and acceleration sensor
  C1442/44	Invalid Data Received from Deceleration Sensor	322	Yaw rate and acceleration sensor
  U0124/95	Lost Communication with Lateral Acceleration Sensor Module	319 320	CAN communication system Yaw rate and acceleration sensor Skid control ECU
  U0073/94	Control Module Communication Bus OFF	400 402 403 405 406 407 410 411 412	CAN communication system

HINT:

• In some cases, the Techstream cannot be used when ABS warning light remains on.
• When U0073/94, U0293/59, U0123/62, U0124/95, U0126/63, U0130/68 or U0131/67 is output, inspect and repair the trouble areas indicated by these codes first.
• Even after the trouble areas are repaired, the ABS warning light will not go off unless the following operations are performed.
  1. Drive the vehicle at the speed of 50 km/h (31 mph) and depress the brake pedal strongly for approximately 3 seconds.
  2. Repeat the above operation 3 times or more and check that the ABS warning light goes off.
  3. Clear the DTC.

Fig 2: Identifying Multi-Information Display

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

DTC chart of VSC 

Fig 3: Identifying Brake Warning Light/Yellow (Minor Malfunction)

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

DTC chart of electronically controlled brake system 

DTC chart of ABS and electronically controlled brake system 

Fig 4: Identifying Brake Hold Standby Indicator Light

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

DTC of brake hold 

Test mode DTC of ABS 

Test mode DTC of electronically controlled brake system 

Test mode DTC of VSC 

HINT:

After replacing the skid control ECU with a normally functioning one, make sure to initialize the skid control ECU (internal gateway ECU). If the ECU is not initialized, DTCs indicating communication malfunctions with other ECUs may be output, as the information of the previous vehicle remains in the ECU.