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Diagnostic Trouble Code Definitions

WARNING: This page is about a different car, the 2003 Toyota Prius, 2002 Toyota Prius, and 2001 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
DTC DEFINITIONS

DTC Code Circuit/Malfunction
ABS-Related
C0200 (1) 31 (1) RF Wheel Speed Sensor Signal Malfunction
C0205 (1) 32 (1) LF Wheel Speed Sensor Signal Malfunction
C0210 (1) 33 (1) RR Wheel Speed Sensor Signal Malfunction
C0215 (1) 34 (1) LR Wheel Speed Sensor Signal Malfunction
C0226  21  Open/Shorted RF Solenoid, Defective ABS Actuator
C0236  22  Open/Shorted LF Solenoid, Defective ABS Actuator
C0246  23  Open/Shorted RR Solenoid, Defective ABS Actuator
C0278  11  Open Circuit In ABS Solenoid Valve Relay Circuit
C0279  12  Short In ABS Solenoid Valve Relay Circuit
C1202  58  Brake Fluid Level Low. Open Circuit In Brake Fluid Level Warning Switch Circuit
C1211  61  Malfunction In Linear Solenoid (SLA) Circuit
C1212  62  Malfunction In Linear Solenoid (SLR) Circuit
C1213  63  Malfunction In HV ECU Communication Circuit
C1214  64  Malfunction In Hydraulic System
C1215  15  Low Positive Voltage Of Linear Solenoid
C1216  16  High Positive Voltage Of Linear Solenoid
C1217  25  Malfunction In Regenerative Solenoid (SMC1) Circuit
C1218  26  Malfunction In Regenerative Solenoid (SMC2) Circuit
C1219  27  Malfunction In Regenerative Solenoid (SS) Circuit
C1220  46  Malfunction In Regulator (REG) Pressure Sensor
C1221  46  Malfunction In Front (FR) Pressure Sensor
C1222  46  Malfunction In Rear (RR) Pressure Sensor
C1241  41  Excessively Low/High Battery (IG1)Voltage
C1242 (2) 42 (2) Open Circuit In IG2 Circuit
C1246  46  Malfunction In Master Cylinder (M/C) Pressure Sensor
C1249  49  Open In Stoplight Switch Circuit
C1251 (2) 51 (2) Pump Motor Locked Up, Open Ground Circuit
C1252 (2) 52 (2) Hydraulic Brake Booster Pump Motor
C1253 (2) 53 (2) Malfunction In Hydro Motor Relay Circuit
C1254 (2) 54 (2) Malfunction In Pressure Switch
C1256 (2) 56 (2) Malfunction In Accumulator Low Pressure
C1257 (2) 57 (2) Malfunction In Power Supply Drive Circuit
C1259  59  Malfunction In Regenerative Of HV ECU
Speed Sensor-Related DTCs
C1271  71  RF Speed Sensor Signal Low Voltage
C1272  72  LF Speed Sensor Signal Low Voltage
C1273  73  RR Speed Sensor Signal Low Voltage
C1274  74  LR Speed Sensor Signal Low Voltage
C1275  75  RF Speed Sensor Abnormal Change In Output Voltage
C1276  76  LF Speed Sensor Abnormal Change In Output Voltage
C1277  77  RR Speed Sensor Abnormal Change In Output Voltage
C1278  78  LR Speed Sensor Abnormal Change In Output Voltage
(1) As the DTC cannot be erased by replacing parts, do either of the following: Clear DTC. See CLEARING DIAGNOSTIC TROUBLE CODES . Or, at a vehicle speed of 12 mph, drive the vehicle for 30 sec. or more.
(2) See Figure to diagnose components.