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2020 TESLA MODEL 3
Long Range Dual Motor AWD•AWD•AUTOMATIC•ev
20 active safety recalls on this vehicle — view recalls
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Repairs0Labor322Torque3852Fluid5DTC726Battery1Maintenance0Recalls20
P2135critical severityPowertrain

Throttle/Pedal Position Sensor/Switch A/B Voltage Correlation

on 2020 Tesla Model 3 Long Range Dual Motor AWD · AWD

What this code means

The dual throttle position sensors are reporting conflicting values, indicating a fault.

Symptoms

  • Limp mode
  • Reduced power
  • Check engine light
  • Erratic throttle response

Common causes

  • Failed TPS (built into throttle body)
  • Connector corrosion
  • Intermittent wiring
  • 5V reference circuit fault

Diagnostic steps

  1. Check TPS sensor A and B voltages
  2. Verify 5V reference
  3. Wiggle test wiring
  4. Check connector pins

Repair notes

Replace throttle body assembly (TPS is integrated). Check 5V reference shared with other sensors.

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