P2116

Code

Generic P — Powertrain

Throttle/Pedal Position Sensor E Minimum Stop Performance

Brand: Generic

Type: P — Powertrain

Views: UK: 21 EN: 134 RU: 29

AI status

Completed

ready

Completed 100%

Page language: EN

Causes

Faulty throttle position or pedal position sensor (sensor E)
Wiring damage: open, short to voltage, short to ground, or high resistance
Poor or corroded connector/pin contact
Incorrect reference voltage or ground at the sensor
Faulty throttle body assembly or internal sensor in the throttle body
Mechanical binding at throttle plate, return spring, or pedal assembly

Symptoms

Check Engine Light (MIL) illuminated
Reduced engine power / limp-home mode
Poor idle, surging, or stalling
Unresponsive or erratic accelerator/pedal response
Possible throttle hesitation or inability to return fully to closed position

What to check

Read and record DTCs and freeze frame data with a scan tool
Inspect connectors and wiring at throttle body and pedal sensor for damage/corrosion
Verify reference voltage (usually +5 V) and ground at the sensor connector
Backprobe sensor signal with a multimeter or scope at minimum (closed) and during travel
Compare sensor E signal to other throttle/pedal sensors for correlation and plausibility
Check for mechanical binding at throttle plate, return springs, and pedal assembly

Signal parameters

Typical throttle/pedal position sensor signal: 0.5–4.5 V across travel (closed ≈ 0.2–1.0 V, open ≈ 4.0–4.8 V) — exact values vary by vehicle
Reference supply typically +5 V (check manufacturer spec)
Sensor ground near 0 V (low resistance)
Two or more correlated sensor signals expected; sensor E should track within expected relationship to other sensors
No excessive noise or intermittent drops on the signal line when measured with a scope

Diagnostic algorithm

Retrieve and note the freeze frame and full DTC list. Verify P2116 is current (active) vs. historic.
Visually inspect harnesses and connectors at the throttle body and pedal module for damage, corrosion, or loosened pins. Repair as needed.
With key ON engine OFF, measure reference voltage and ground at the sensor connector; compare to spec (typically ≈5 V and 0 V). If absent, trace supply/ground back to PCM/fuse.
Backprobe the sensor E signal with a multimeter or oscilloscope. At rest/closed position confirm signal is at the expected minimum voltage. Move pedal or command throttle and observe signal changes; look for stuck, intermittent, or out-of-range values.
Compare sensor E output to the primary sensor(s) (other throttle/pedal sensors). Look for correlation and proper redundancy agreement. If sensor E disagrees, suspect sensor or wiring to sensor E.
Wiggle-test wiring and connectors while monitoring signal for intermittent faults. Repair any broken/shorted conductors.
Inspect throttle body mechanically: check for carbon build-up, binding, or damaged return springs that could prevent reaching minimum stop. Clean or service as needed.
If electrical and mechanical checks are OK, consider replacing the faulty sensor (throttle body assembly or pedal sensor) and clear codes.
After repair, perform any required throttle/pedal relearn or PCM adaptation procedure per service information. Confirm DTC does not return and vehicle operates normally.
If problem persists, verify PCM operation and software level; consult manufacturer service info and consider PCM reflash or replacement as a last resort.

Likely causes

Damaged or dirty connector pins at the throttle body or pedal sensor
Broken or shorted signal/reference wire for sensor E
Failed internal sensor element in the throttle body (sensor E)
Throttle body mechanical stop or carbon causing improper minimum stop
Faulty PCM (less common) or missing/incorrect throttle position relearn

Fault status

⚠️ Status

Stored when the PCM detects the throttle/pedal position sensor E output is not meeting expected minimum (closed) position performance or is inconsistent with reference sensors. May be active, pending, or historic depending on occurrence and test results.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1-3 hours