DIAGNOSTIC TROUBLE CODE CHART

Turn the ignition switch off before removing parts.

If no abnormality is found when inspecting parts, inspect the skid control ECU and ground points for poor contact.
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 inspection one by one until the problem is identified.
Inspect the fuse and relay before investigating the trouble areas as shown in the table below.

DTC chart of ABS:

DTC No.	Diag Code	Diagnosis item	Trouble Area
C0200 (*1)	31	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
C0205 (*1)	32	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
C0210 (*1)	33	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
C0215 (*1)	34	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
C0226	21	SFR Solenoid Circuit	1. Brake actuator assembly 2. SFRH or SFRR circuit 3. Skid control ECU
C0236	22	SFL Solenoid Circuit	1. Brake actuator assembly 2. SFLH or SFLR circuit 3. Skid control ECU
C0246	23	SRR Solenoid Circuit	1. Brake actuator assembly 2. SRRH or SRRR circuit 3. Skid control ECU
C0256	24	SRL Solenoid Circuit	1. Brake actuator assembly 2. SRLH or SRLR circuit 3. Skid control ECU
C0273	13	Open in ABS Motor Relay Circuit	1. ABS fuse 2. ABS MTR MAIN relay 3. ABS MTR MAIN relay circuit 4. Brake actuator assembly 5. Skid control ECU
C0274	14	Short to B+ in ABS Motor Relay Circuit	1. ABS fuse 2. ABS MTR MAIN relay 3. ABS MTR MAIN relay circuit 4. Brake actuator assembly 5. Skid control ECU
C0278	11	Open in ABS Solenoid Relay Circuit	1. ABS SOL fuse 2. ABS SOL MAIN relay 3. ABS SOL MAIN relay circuit 4. Skid control ECU
C0279	12	Short to B+ in ABS Solenoid Relay Circuit	1. ABS SOL fuse 2. ABS SOL MAIN relay 3. ABS SOL MAIN relay circuit 4. Skid control ECU
C1225	25	SMC Solenoid Circuit	1. Brake actuator assembly 2. SMC1 or SMC2 circuit 3. Skid control ECU
C1227	27	SRM Solenoid Circuit	1. Brake actuator assembly 2. SRM1 or SRM2 circuit 3. Skid control ECU
C1235	35	Foreign Object is Attached on Tip of Front Speed Sensor RH	1. Front speed sensor RH 2. Speed sensor rotor 3. Sensor installation 4. Skid control ECU
C1236	36	Foreign Object is Attached on Tip of Front Speed Sensor LH	1. Front speed sensor LH 2. Speed sensor rotor 3. Sensor installation 4. Skid control ECU
C1238	38	Foreign Object is Attached on Tip of Rear Speed Sensor RH	1. Rear speed sensor RH 2. Speed sensor rotor 3. Sensor installation 4. Skid control ECU
C1239	39	Foreign Object is Attached on Tip of Rear Speed Sensor LH	1. Rear speed sensor LH 2. Speed sensor rotor 3. Sensor installation 4. Skid control ECU
C1241	41	Low Battery Positive Voltage	1. ECU-IG fuse 2. Battery 3. Charging system 4. Power source circuit 5. Internal power supply circuit of the skid control ECU
C1246	46	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
C1249	49	Open in Stop Light Switch Circuit	1. STOP fuse 2. Stop light switch 3. Stop light switch circuit 4. Skid control ECU
C1251	51	Open in Pump Motor Circuit	1. Brake actuator assembly (Ground circuit) 2. Brake actuator assembly (Motor circuit) 3. Skid control ECU
C1265	65	Vacuum Sensor Malfunction	1. Vacuum sensor 2. Vacuum sensor circuit 3. Skid control ECU
C1266	66	Exhaust Retarder Prevention Signal Circuit	1. EXO circuit 2. ECM 3. Skid control ECU

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

Drive the vehicle at 20 km/h (12 mph) for 30 seconds or more and check that the ABS warning light goes off.
Clear the DTC.

Test Mode DTC of ABS:

DTC No.	Diag Code	Diagnosis item	Trouble Area
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
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
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
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
C1275	75	Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)	1. Front speed sensor RH 2. Speed sensor rotor
C1276	76	Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)	1. Front speed sensor LH 2. Speed sensor rotor
C1277	77	Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC)	1. Rear speed sensor RH 2. Speed sensor rotor
C1278	78	Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)	1. Rear speed sensor LH 2. Speed sensor rotor
C1281	81	Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC)	1. Stop light switch 2. Master cylinder pressure sensor
C1285	85	Vacuum Sensor Output Malfunction (Test Mode DTC)	Vacuum sensor