Manufacturer Code Charts: 71

VSA DTC Troubleshooting: 71

DTC 71: Different Diameter Tire

1. Turn the ignition switch to ON (II).

2. Clear the DTC with the HDS.

3. Turn the ignition switch to LOCK (0), then turn it to ON (II) again.

4. Test-drive the vehicle at 19 mph (30 km/h) or more.
NOTE: Drive the vehicle on the road, not on a lift.

5. Check for DTCs with the HDS.

Is DTC 71 indicated?
YES - Go to step 6.

NO - Confirm that tire inflation is set to spec. The vehicle is OK at this time. Refer to intermittent failures. Reading and Clearing Diagnostic Trouble Codes


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

Are all four tires the correct size and properly inflated?
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 difference between the shortest and the longest measurement more than 10 %?
YES - Replace the tire/tires that is smaller or larger than the others.

NO - Check for loose terminals or poor connections at the VSA modulator-control unit 47P connector. If connections are good, replace the VSA modulator-control unit. Service and Repair