Test D: Speedometer Inaccurate
- Ensure tires are proper size recommended by manufacturer. If tires are proper size, go to next step. If tires are not proper size, replace tires and retest.
- Check accuracy of odometer. See ODOMETER under COMPONENT TESTS. If odometer is accurate, go to TEST E: SPEEDOMETER/ODOMETER INOPERATIVE (WITH 4-WHEEL ANTI-LOCK BRAKES) or TEST F: SPEEDOMETER/ODOMETER INOPERATIVE (WITH REAR ANTI-LOCK BRAKES) test. If odometer is not accurate, replace speedometer.