AutoCodes – Generic – P0229

P0229 Code - Throttle/Pedal Position Sensor/Switch 'C' Circuit Intermittent

Quick Answer

Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor (TPS), etc. Common causes include Faulty Throttle Position Sensor (TPS), Throttle Position Sensor (TPS) harness is open or shorted, Throttle Position Sensor (TPS) 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: P0229 indicates Throttle/Pedal Position Sensor/Switch 'C' Circuit Intermittent.
Common causes: Common causes include Faulty Throttle Position Sensor (TPS), Throttle Position Sensor (TPS) harness is open or shorted, Throttle Position Sensor (TPS) 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 15,649

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 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 P0229 Description

Electric Throttle Control Actuator consists of throttle control motor, throttle position sensor (TPS), etc. The throttle position sensor responds to the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the Engine Control Module (ECM) In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.

OBDII Code P0229 - Throttle/Pedal Position Sensor/Switch 'C' Circuit Intermittent - AutoCodes.com — P0229 Code - Throttle/Pedal Position Sensor/Switch 'C' Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0229?

Faulty Throttle Position Sensor (TPS)
Throttle Position Sensor (TPS) harness is open or shorted
Throttle Position Sensor (TPS) circuit poor electrical connection

How to Fix the DTC P0229?

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 P0229 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.

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Information for Specific Makes

P0229 Chrysler — Instrument Cluster Message Ambient Temperature Signal Plausibility
P0229 Ford — Throttle/Pedal Position Sensor/Switch 'C' Circuit Intermittent
P0229 Mercedes-Benz — Throttle/Pedal Position Sensor/Switch 'C' Circuit Intermittent

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.