Diagnostic Trouble Code Chart

NOTE:

Turn the engine switch off before removing any parts.

HINT:

If no abnormality is found when inspecting parts, inspect the skid control ECU and ground points for poor connections.
If a trouble code is output during the DTC check, check the trouble areas indicated by the DTC. For details of each code, refer to the "See page" for the respective "DTC Code" in the DTC chart.
When 2 or more DTCs are output, perform circuit inspections one by one until the problem is identified.
For DTCs output by the warning light or indicator light, refer to the DTC charts in DTC Check/Clear.
Inspect the fuses and relays before inspecting the trouble areas shown in the table below.

DTC

TEST MODE

DTC Code	Detection Item	Trouble Area	See
C1271	Low Output Signal of Front Speed Sensor RH (Test Mode DTC)	- Front speed sensor RH - Front speed sensor rotor RH - Sensor installation	Refer to DTC C1401: Front Speed Sensor RH Malfunction; DTC C1271: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272: Low Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1402: Front Speed Sensor LH Malfunction
C1272	Low Output Signal of Front Speed Sensor LH (Test Mode DTC)	- Front speed sensor LH - Front speed sensor rotor LH - Sensor installation	Refer to DTC C1401: Front Speed Sensor RH Malfunction; DTC C1271: Low Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1272: Low Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1402: Front Speed Sensor LH Malfunction
C1273	Low Output Signal of Rear Speed Sensor RH (Test Mode DTC)	- Rear speed sensor RH - Rear speed sensor rotor RH - Sensor installation	Refer to DTC C1403: Rear Speed Sensor RH Malfunction; DTC C1273: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1404: Rear Speed Sensor LH Malfunction
C1274	Low Output Signal of Rear Speed Sensor LH (Test Mode DTC)	- Rear speed sensor LH - Rear speed sensor rotor LH - Sensor installation	Refer to DTC C1403: Rear Speed Sensor RH Malfunction; DTC C1273: Low Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1274: Low Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1404: Rear Speed Sensor LH Malfunction
C1275	Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC)	- Front speed sensor RH - Front speed sensor rotor RH	Refer to DTC C1413: Front Speed Sensor RH Output Malfunction; DTC C1275: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1414: Front Speed Sensor LH Output Malfunction
C1276	Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC)	- Front speed sensor LH - Front speed sensor rotor LH	Refer to DTC C1413: Front Speed Sensor RH Output Malfunction; DTC C1275: Abnormal Change in Output Signal of Front Speed Sensor RH (Test Mode DTC); DTC C1276: Abnormal Change in Output Signal of Front Speed Sensor LH (Test Mode DTC); DTC C1414: Front Speed Sensor LH Output Malfunction
C1277	Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC)	- Rear speed sensor RH - Rear speed sensor rotor RH	Refer to DTC C1415: Rear Speed Sensor RH Output Malfunction; DTC C1277: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1416: Rear Speed Sensor LH Output Malfunction
C1278	Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC)	- Rear speed sensor LH - Rear speed sensor rotor LH	Refer to DTC C1415: Rear Speed Sensor RH Output Malfunction; DTC C1277: Abnormal Change in Output Signal of Rear Speed Sensor RH (Test Mode DTC); DTC C1278: Abnormal Change in Output Signal of Rear Speed Sensor LH (Test Mode DTC); DTC C1416: Rear Speed Sensor LH Output Malfunction
C1279	Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)	- ECU-IG NO. 1 fuse - Sensor installation - Harness or connector - Yaw rate and acceleration sensor - CAN communication system	Refer to DTC C1232: Acceleration Sensor Stuck Malfunction; DTC C1243: Acceleration Sensor Stuck Malfunction; DTC C1245: Acceleration Sensor Output Malfunction; DTC C1279: Acceleration Sensor Output Voltage Malfunction (Test Mode DTC)
C1281	Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC)	Master cylinder solenoid (Master cylinder pressure sensor)	Refer to DTC C1421: Open or Short in Master Cylinder Pressure Sensor; DTC C1281: Master Cylinder Pressure Sensor Output Malfunction (Test Mode DTC); DTC C1423: Master Cylinder Pressure Sensor Zero Point Low Malfunction; DTC C1424: Master Cylinder Pressure Sensor Output Malfunction; DTC C1455: Open or Short in Control Pressure Sensor; DTC C1457: Control Pressure Sensor Zero Point Low; DTC C1458: Control Pressure Sensor Zero Point Output
C1282	Center Differential Lock Position Switch	- Harness or connector - Transfer system	Refer to DTC C1282: Center Differential Lock Position Switch
C1379	Downhill Assist Control Switch Malfunction (Test Mode DTC)	- Combination switch - Harness or connector - Master cylinder solenoid (Skid control ECU)	Refer to DTC C1379: Downhill Assist Control Switch Malfunction (Test Mode DTC)