Throttle Position Sensor/Switch 'D' Circuit Range/Performance
The P2116 code means the vehicle's onboard diagnostic system has detected: Throttle Position Sensor/Switch 'D' Circuit Range/Performance. This is a serious severity code.
- Keep driving?
- Short distances only
- DIY difficulty
- Moderate
- Estimated cost
- $150 - $450 (parts and labor)
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Common Symptoms
- Check Engine Light illuminated
- Inconsistent throttle response
- Engine surging or hesitation
- Reduced engine power mode activated
- Rough idle conditions
- Poor fuel economy
Probable Causes (Ranked by Likelihood)
- Worn or contaminated throttle position sensor D High
- Intermittent connection at TPS D connector High
- Carbon buildup on throttle body affecting sensor readings Medium
- TPS D sensor out of calibration Medium
- PCM/ECM unable to correlate TPS D with other throttle sensors Low
Frequently Asked Questions
What does P2116 mean?
P2116 means the throttle position sensor D is sending signals that are outside the expected range or the signal performance does not match what the PCM expects based on other sensor inputs.
Can I drive with P2116?
You can drive short distances but expect reduced power mode and inconsistent throttle response. The vehicle is safe at low speeds but should be repaired promptly.
Is P2116 related to P2135?
They can be related. P2135 indicates a correlation issue between TPS A and B, while P2116 specifically targets TPS D range/performance. Both point to throttle position sensing problems.
Mechanics Guide Step-by-step diagnosis
Step-by-Step Diagnostic Procedure
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Scan for codes and record freeze frame data including throttle position percentages
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Graph TPS D signal while slowly opening throttle - look for dropouts or flat spots
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Compare TPS D readings against TPS A and TPS B for agreement
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Clean the throttle body and retest sensor readings
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Check for technical service bulletins related to TPS calibration for your vehicle
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
Commonly Affected Vehicles
- 2009-2017 Chevrolet Traverse 3.6L V6
- 2010-2018 GMC Acadia 3.6L V6
- 2008-2016 Buick Enclave 3.6L V6
- 2011-2019 Ford Explorer 3.5L V6
- 2007-2015 Saturn Outlook 3.6L V6
Related Codes
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