P0608 OBD II Trouble Code Control Module VSS Output A Malfunction

How to easily diagnose, repair, and info on causes of a P0608 trouble code that indicates a detected malfunction of the A control module vehicle speed sensor output.

Symptoms of P0608 OBD II Trouble Code

  • Erratic or incorrect speedometer/odometer
  • Abnormal (automatic) transmission shifting
  • Output shaft speed sensor codes
  • Input speed sensor codes
  • ABS or Traction Control System (TCS) codes

Common Causes of P0608 OBD II Trouble Code

  • Defective PCM, TCM, or other controller
  • Open or shorted circuits in the CAN
  • Corroded, broken, or loose electrical connectors
  • Controller programming error

Severity of P0608 OBD II Trouble Code

VSS related codes may affect transmission shift strategy and engine drivability. A stored code P0608 should be classified as severe and diagnosed/repaired as quickly as possible.