AutoCodes – Generic – P212C

P212C Code - Throttle Position Sensor/Switch 'G' Circuit Low

Quick Answer

The Engine Control Module (ECM) monitors the Throttle Position Sensor/Switch 'G' Circuit circuit. Common causes include Faulty Throttle Position Sensor/Switch, Throttle Position Sensor/Switch harness is open or shorted, Throttle Position Sensor/Switch 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: P212C indicates Throttle Position Sensor/Switch 'G' Circuit Low.
Common causes: Common causes include Faulty Throttle Position Sensor/Switch, Throttle Position Sensor/Switch harness is open or shorted, Throttle Position Sensor/Switch 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 4,242

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 Jan 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P212C Description

The Engine Control Module (ECM) monitors the Throttle Position Sensor/Switch 'G' Circuit circuit. The ECM sets the OBDII Code when the Throttle Position Sensor/Switch 'G' Circuit signal is out of factory specifications.

OBDII Code P212C - Throttle Position Sensor/Switch 'G' Circuit Low - AutoCodes.com — P212C Code - Throttle Position Sensor/Switch 'G' Circuit Low

What does this mean?

What are the Possible Causes of the DTC P212C?

Faulty Throttle Position Sensor/Switch
Throttle Position Sensor/Switch harness is open or shorted
Throttle Position Sensor/Switch circuit poor electrical connection

How to Fix the DTC P212C?

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 P212C 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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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.