DTC 71

DTC 71: Different Diameter Tire

1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Turn the ignition switch OFF, then disconnect the HDS.
4. Test-drive the vehicle.
5. Check for DTCs with the HDS.

Is DTC 71 indicated?

YES - Go to step 6.

NO - The vehicle is OK at this time. Refer to intermittent failure. Confirm that tire inflation is set to spec.

6. Check that all four tires are the specified size, are inflated to the proper specification and worn evenly.

Are all four tires the correct size, properly inflated and worn evenly?

YES - Go to step 7.

NO - Install the correct tires or set the tires to the correct inflation, and retest.

7. With the vehicle on level ground, mark each tire with a small spot of grease. Roll the vehicle until each of the tires makes two grease spots on the floor.
8. Measure and record the distance between the two grease spots.

Is the distance between the shortest and the longest measurement more than 8.5%?

YES - Replace the tire/tires that is smaller or larger than the others.

NO - Check for loose terminals in the VSA modulator-control unit 47P connector. If necessary, substitute a known-good VSA modulator-control unit, and retest.