Back to 2017 Ford Fiesta

2017 FORD FIESTA

1.6L I4 TurboFWDDCTgasturbo
Repairs0Labor593Torque3747Fluid6DTC966Battery1Maintenance0Recalls0
P2135critical severityPowertrain

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

on 2017 Ford Fiesta 1.6L I4 Turbo · 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

Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →