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2015 TESLA MODEL X
90 kWh Dual Motor AWD•AWD•AUTOMATIC•ev
2 active safety recalls on this vehicle — view recalls
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Repairs0Labor321Torque3834Fluid5DTC1478Battery1Maintenance0Recalls2
P0393moderate severityPowertrain

Camshaft Position Sensor B Circuit High Input (Bank 2)

on 2015 Tesla Model X 90 kWh Dual Motor AWD · AWD

What this code means

The PCM reads an abnormally high voltage from the Bank 2 camshaft position sensor B. This often points to a short to voltage or an open ground.

Symptoms

  • Hard starting
  • Rough running
  • MIL illuminated

Common causes

  • Short to voltage in wiring
  • Faulty camshaft position sensor
  • Open sensor ground
  • Corroded connector

Diagnostic steps

  1. Retrieve codes and freeze frame
  2. Measure sensor signal voltage
  3. Inspect for short to power and ground integrity
  4. Replace sensor or repair harness
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Other Powertrain codes on this vehicle

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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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