What this code means

The PCM detected intermittent signal loss from the Vehicle Speed Sensor circuit. The signal is present some of the time but drops out intermittently.

Symptoms

• Speedometer erratic or dropping to zero
• Check Engine Light
• Cruise control inoperative
• Transmission shift issues
• ABS/traction control warnings

Common causes

• Faulty vehicle speed sensor
• Damaged speed sensor wiring
• Loose speed sensor connector
• Corroded connections
• Faulty tone ring or reluctor

Diagnostic steps

1. Monitor VSS signal with scan tool while driving
2. Wiggle test speed sensor connector
3. Inspect wiring for damage or chafing
4. Check speed sensor air gap
5. Test sensor resistance

Repair notes

Check wiring and connector first. Replace vehicle speed sensor if signal is intermittent at sensor.

Other Powertrain codes on this vehicle