P1125high severityPowertrain

Tandem Throttle Position Sensor Circuit

on 2017 Infiniti Q70 5.6L V8 · RWD

What this code means

Fault in the dual/tandem TPS providing redundant position data.

Symptoms

  • CEL
  • Reduced power
  • Erratic throttle
  • Idle only
  • Limp mode

Common causes

  • Faulty tandem TPS
  • Damaged wiring
  • Corroded pins
  • Throttle body failure

Diagnostic steps

  1. Test both TPS signals
  2. Inspect wiring
  3. Check connector
  4. Test throttle body

Repair notes

Replace throttle body assembly.

Other Powertrain codes on this vehicle

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