DTC C1281

Precautions: Precautions for Diagnosing Trouble · Precautions for Driveline / Axle · General safety (00)

DTC Detecting Condition and Trouble Area

DTC detecting condition	Trouble area
C1281: 4WD Tire of Different Diameter Installed Vehicle is driven with different diameter tires installed for more than specified time.	•Size of installed tire different between front and rear. •4WD control module

DTC Confirmation Procedure

WARNING:

If you do not select a suitable route and take proper precautions when performing a road test, an accident can occur.

•Select a level road with no traffic to minimize the risk of accident.
•Perform the test extremely carefully.
•Perform the road test with 2 persons, a driver and a tester.

NOTE:

•Troubleshoot first unexpected DTCs previously detected in “DTC Confirmation Procedure”.
•Avoid mountainous areas that result in different speed between front and rear wheels.
•Avoid the type of driving in which rapid acceleration causes different speed between front and rear wheels.
•During the test drive, it does not matter if the vehicle is momentarily stopped at traffic signals.

1)Drive vehicle at over 30 km/h (19 mile/h) for 5 to 10 minutes.

DTC Troubleshooting

Step	Action	Yes	No
1	Tire check 1)Check if front and rear tires are the same size and have the specified air pressure. Is check result OK?	Go to Step 2.	Replace with standard tire or adjust air pressure.
2	DTC check 1)Clear DTC. 2)Perform DTC confirmation procedure, and check DTC. Is DTC C1281 still detected?	Substitute a known-good 4WD control module and recheck DTC.	End.