Back to 2016 Ram 1500

2016 RAM 1500

5.7L V8 Hemi4WDAUTOMATICgas
17 active safety recalls on this vehicle — view recalls
Repairs0Labor593Torque3908Fluid9DTC913Battery1Maintenance0Recalls17
P2123critical severityPowertrain

Throttle/Pedal Position Sensor/Switch D Circuit High

on 2016 Ram 1500 5.7L V8 Hemi · 4WD

What this code means

High voltage from accelerator pedal position sensor D.

Symptoms

  • Limp mode
  • Unintended acceleration
  • Check engine light

Common causes

  • Open ground circuit
  • Short to voltage
  • Failed sensor

Diagnostic steps

  1. Measure voltage at APP sensor D
  2. Check for opens in ground
  3. Inspect wiring

Repair notes

Replace pedal assembly or repair wiring.

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 →