P1500moderate severityPowertrain
Vehicle Speed Sensor Intermittent
on 2021 Ford Mustang Mach-E Standard Range Dual Motor AWD · RWD
What this code means
The vehicle speed sensor signal is intermittent. The PCM is detecting dropout or erratic signals from the VSS.
Symptoms
- Check Engine Light
- Erratic speedometer
- Transmission shifting problems
- Cruise control inoperative
- ABS light may illuminate
Common causes
- Faulty vehicle speed sensor
- Damaged VSS wiring
- Loose VSS connector
- Corroded connector pins
- Faulty tone ring
Diagnostic steps
- Monitor VSS signal on scan tool during test drive
- Inspect VSS connector and wiring
- Wiggle test wiring while monitoring
- Test VSS output signal
- Inspect tone ring for damage
Repair notes
Replace VSS if signal is erratic. Repair wiring or connector.
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