P2117 serious

Throttle Position Sensor/Switch 'D' Circuit Low

The P2117 code means the vehicle's onboard diagnostic system has detected: Throttle Position Sensor/Switch 'D' Circuit Low. This is a serious severity code.

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Keep driving?: Short distances only
DIY difficulty: Moderate
Estimated cost: $150 - $400 (parts and labor)

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Common Symptoms

Check Engine Light illuminated
Vehicle stuck in reduced power mode
Engine idles roughly or stalls
Throttle pedal may feel unresponsive
Poor acceleration performance

Probable Causes (Ranked by Likelihood)

Short to ground in TPS D signal wire High
Faulty throttle position sensor D with low output High
Corroded or bent connector pins at TPS Medium
Open circuit in TPS D reference voltage wire Medium
PCM/ECM driver circuit failure Low

Step-by-Step Diagnostic Procedure

Scan for codes and confirm P2117 with freeze frame data
Measure TPS D signal voltage at the sensor connector - should be above 0.5V at closed throttle
Check for 5V reference voltage at the TPS D connector
Inspect wiring harness from TPS to PCM for shorts to ground or chafing
Disconnect TPS and check if signal voltage changes - if stuck low, trace the wiring

Frequently Asked Questions

What does P2117 mean?

P2117 means the PCM has detected that the voltage signal from throttle position sensor D is below the minimum expected threshold. This typically indicates a short to ground or a failed sensor.

Can I drive with P2117?

You can drive short distances at reduced speed. The vehicle will likely be in limp mode with very limited acceleration. Have the sensor circuit diagnosed and repaired promptly.

How much does it cost to fix P2117?

Repairs typically cost $150 to $400. If it is a wiring issue, repair costs are $100-$250. A TPS or throttle body replacement runs $200-$400 including labor.