AutoCodes – Generic – P2166

P2166 Code - Throttle/Pedal Position Sensor 'D' Maximum Stop Performance

Quick Answer

The Powertrain Control Module (PCM) monitors the electronic throttle for the ability of the throttle plate to reach the upper mechanical stop position within a calibrated amount of time at ignition ON. Common causes include Faulty Electronic Throttle Control (ETC), Electronic Throttle Control (ETC) harness is open or shorted, Electronic Throttle Control (ETC) Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2166 indicates Throttle/Pedal Position Sensor 'D' Maximum Stop Performance.
Common causes: Common causes include Faulty Electronic Throttle Control (ETC), Electronic Throttle Control (ETC) harness is open or shorted, Electronic Throttle Control (ETC) Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 7,885

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P2166 Description

The Powertrain Control Module (PCM) monitors the electronic throttle for the ability of the throttle plate to reach the upper mechanical stop position within a calibrated amount of time at ignition ON. The P2166 code sets if the throttle plate does not reach the upper mechanical stop position within a calibrated amount of time.

OBDII Code P2166 - Throttle/Pedal Position Sensor 'D' Maximum Stop Performance - AutoCodes.com — P2166 Code - Throttle/Pedal Position Sensor 'D' Maximum Stop Performance

What does this mean?

What are the Possible Causes of the DTC P2166?

Faulty Electronic Throttle Control (ETC)
Electronic Throttle Control (ETC) harness is open or shorted
Electronic Throttle Control (ETC) Sensor circuit poor electrical connection
Faulty Powertrain Control Module (PCM)

How to Fix the DTC P2166?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2166 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2166 code?

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Need Help with the Code?

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Information for Specific Makes

P2166 Dodge — Throttle/Pedal Position Sensor 'D' Maximum Stop Performance

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.