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2008 ACURA TSX

2.4L I4FWDAUTOMATICgas
3 active safety recalls on this vehicle — view recalls
Repairs0Labor467Torque3645Fluid6DTC878Battery0Maintenance0Recalls3
P2135critical severityPowertrain

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

on 2008 Acura TSX 2.4L I4 · FWD

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.

Other Powertrain codes on this vehicle

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