Yaris 2007

1.5L L4 VIN - Auto 4

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Trouble Code: C1203



ECM Communication Circuit Malfunction

Possible Causes:



ECM
 

Trouble Code: C1210



Zero Point Calibration of Yaw Rate Sensor Undone

Possible Causes:



Yaw rate and acceleration sensor
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1225



SM Solenoid Circuit

Possible Causes:



SM1 or SM2 circuit
 
Brake actuator assembly
 

Trouble Code: C1232



Acceleration Sensor Stuck Malfunction

Possible Causes:



Yaw rate and acceleration sensor
 
Yaw rate and acceleration sensor circuit
 

Trouble Code: C1235/35



Foreign Object is Attached on Tip of Front Speed Sensor RH

Possible Causes:



Front speed sensor
 
Front speed sensor circuit
 
Foreign matter on sensor tip or sensor rotor
 
Brake actuator (skid control ECU)
 

Trouble Code: C1236/36



Foreign Object is Attached on Tip of Front Speed Sensor LH

Possible Causes:



Front speed sensor
 
Front speed sensor circuit
 
Foreign matter on sensor tip or sensor rotor
 
Brake actuator (skid control ECU)
 

Trouble Code: C1238/38



Foreign Object is Attached on Tip of Rear Speed Sensor RH

Possible Causes:



Skid control sensor
 
Skid control sensor circuit
 
Brake actuator (skid control ECU)
 

Trouble Code: C1239/39



Foreign Object is Attached on Tip of Rear Speed Sensor LH

Possible Causes:



Skid control sensor
 
Skid control sensor circuit
 
Brake actuator (skid control ECU)
 

Trouble Code: C1241



Low Power Supply Voltage Malfunction

Possible Causes:



ECU-IG fuse
 
Battery
 
Charging system
 
Power source circuit
 
Internal power supply circuit of the skid control ECU
 

Trouble Code: C1241/41



Low Battery Positive Voltage or Abnormally High Battery Positive Voltage

Possible Causes:



Battery
 
Charging system
 
ECU-IG fuse
 
AM1 fuse
 
IG1 relay
 
Brake actuator (skid control ECU)
 

Trouble Code: C1243



Acceleration Sensor Stuck Malfunction

Possible Causes:



Yaw rate and acceleration sensor
 
Yaw rate and acceleration sensor circuit
 

Trouble Code: C1245



Acceleration Sensor Output Malfunction

Possible Causes:



Yaw rate and acceleration sensor
 
Yaw rate and acceleration sensor circuit
 
Sensor installation
 

Trouble Code: C1249/49



Open in Stop Light Switch Circuit

Possible Causes:



Stop light switch
 
Stop light switch circuit
 
Brake actuator (skid control ECU)
 

Trouble Code: C1251/51



Open In Pump Motor Circuit

Possible Causes:



Brake actuator
 

Trouble Code: C1271



RF Speed Output

Possible Causes:



Front wheel sensor RH/LH
 
Sensor installation
 
wheel sensor rotor
 

Trouble Code: C1271/71



Low Output Signal of Front Speed Sensor RH (Test Mode DTC)

Possible Causes:



Front speed sensor
 
Front speed sensor circuit
 
Sensor installation
 
Foreign matter on sensor tip or sensor rotor
 

Trouble Code: C1272



LF Speed Output

Possible Causes:



Front wheel sensor RH/LH
 
Sensor installation
 
wheel sensor rotor
 

Trouble Code: C1272/72



Low Output Signal of Front Speed Sensor LH (Test Mode DTC)

Possible Causes:



Front speed sensor
 
Front speed sensor circuit
 
Sensor installation
 
Foreign matter on sensor tip or sensor rotor
 

Trouble Code: C1273/73



Low Output Signal of Rear Speed Sensor RH (Test Mode DTC)

Possible Causes:



Skid control sensor
 
Skid control sensor circuit
 
Sensor installation
 

Trouble Code: C1274/74



Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)

Possible Causes:



Skid control sensor
 
Skid control sensor circuit
 
Sensor installation
 

Trouble Code: C1275/75



Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)

Possible Causes:



Front speed sensor
 
Front speed sensor circuit
 
Foreign matter on sensor tip or sensor rotor
 

Trouble Code: C1276/76



Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)

Possible Causes:



Front speed sensor
 
Front speed sensor circuit
 
Foreign matter on sensor tip or sensor rotor
 

Trouble Code: C1277/77



Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC)

Possible Causes:



Skid control sensor
 
Skid control sensor circuit
 

Trouble Code: C1278/78



Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)

Possible Causes:



Skid control sensor
 
Skid control sensor circuit
 

Trouble Code: C1279



Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)

Possible Causes:



Yaw rate and acceleration sensor
 
Sensor installation
 

Trouble Code: C1336



Zero Point Calibration of Acceleration Sensor Undone

Possible Causes:



Yaw rate and acceleration sensor
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1361



Short in ABS Motor Fail Safe Relay Circuit

Possible Causes:



ABS1/VSC1 fuse
 
ABS motor fail safe relay circuit
 
Brake actuator assembly (ABS motor fail safe relay)
 

Trouble Code: C1381



Acceleration Sensor Power Supply Voltage Malfunction

Possible Causes:



Yaw rate and acceleration sensor
 
Yaw rate and acceleration sensor power source circuit
 

Trouble Code: C1401



Front Speed Sensor RH Malfunction

Possible Causes:



Front speed sensor RH/LH
 
Speed sensor rotor
 
Sensor installation
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1402



Front Speed Sensor LH Malfunction

Possible Causes:



Front speed sensor RH/LH
 
Sensor installation
 
Speed sensor rotor
 

Trouble Code: C1403



Rear Speed Sensor RH Malfunction

Possible Causes:



Rear speed sensor RH/LH
 
Speed sensor rotor
 
Sensor installation
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1404



Rear Speed Sensor LH Malfunction

Possible Causes:



Rear speed sensor RH/LH
 
Speed sensor rotor
 
Sensor installation
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1405



Open or Short in Front Speed Sensor RH Circuit

Possible Causes:



Front speed sensor RH/LH
 
Speed sensor circuit
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1406



Open or Short in Front Speed Sensor LH Circuit

Possible Causes:



Front speed sensor RH/LH
 
Speed sensor circuit
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1407



Open or Short in Rear Speed Sensor RH Circuit

Possible Causes:



Rear speed sensor RH/LH
 
Speed sensor circuit
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1408



Open or Short in Rear Speed Sensor LH Circuit

Possible Causes:



Rear speed sensor RH/LH
 
Speed sensor circuit
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1413



Front Speed Sensor RH Output Malfunction

Possible Causes:



Front speed sensor RH/LH
 
Speed sensor circuit
 
Speed sensor rotor
 
Sensor installation
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1414



Front Speed Sensor LH Output Malfunction

Possible Causes:



Front speed sensor RH/LH
 
Speed sensor circuit
 
Speed sensor rotor
 
Sensor installation
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1415



Rear Speed Sensor RH Output Malfunction

Possible Causes:



Rear speed sensor RH/LH
 
Speed sensor circuit
 
Speed sensor rotor
 
Sensor installation
 
Brake actuator assembly (Skid control ECU)
 

Trouble Code: C1416



Rear Speed Sensor LH Output Malfunction

Possible Causes:



Rear speed sensor RH/LH
 
Speed sensor circuit
 
Speed sensor rotor
 
Sensor installation
 
Brake actuator assembly (Skid control ECU)
 

 
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