Common Symptoms
- Speedometer operates erratically or not at all
- ABS or traction control warning lights illuminated
- Transmission shifts harshly or at incorrect speeds
- Cruise control inoperative or disengages unexpectedly
- Check Engine Light illuminated
- Poor fuel economy due to incorrect shift points
Most Likely Root Causes
- Faulty vehicle speed sensor
- Damaged or corroded wiring harness to speed sensor
- Worn or damaged tone ring on transmission or differential
- Faulty transmission output shaft sensor
- Intermittent electrical connector at speed sensor
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Component Location
Vehicle speed sensor is typically mounted on the transmission output shaft or differential housing.
Manufacturer Notes
Some vehicle platforms use multiple speed sensors and require correlation between transmission output speed and wheel speed sensors for this code to set.
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