Test D - Speedometer Inaccurate
- Ensure tires are proper size recommended by factory. 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 TEST under COMPONENT TESTS. If odometer is accurate, go to appropriate SPEEDOMETER/ODOMETER INOPERATIVE test. If odometer is not accurate, replace speedometer.