AutoCodes – Cadillac – P0222 Cadillac

P0222 Cadillac Code - Throttle Position Sensor 2 Circuit Low Voltage

Quick Answer

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly 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: P0222 Cadillac indicates Throttle Position Sensor 2 Circuit Low Voltage.
Common causes: Common causes include Faulty Throttle Body Assembly, Throttle Body Assembly harness is open or shorted, Throttle Body Assembly 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 1,772

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 May 20, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0222 Cadillac Description

The Throttle Body Assembly contains a contact-less inductive throttle position sensing element that is managed by a customized integrated circuit. The throttle position sensor is mounted within the throttle body assembly and is not serviceable. The Engine Control Module (ECM) supplies the throttle body with a 5 V reference circuit, a low reference circuit. The asynchronous signal means communication is only going from the throttle body to the ECM. The throttle body cannot receive data from the ECM over the signal/serial data circuit. The throttle position sensor provides a signal voltage that changes relative to throttle blade angle. The throttle position sensor information is transmitted between the throttle body and the ECM on the signal/serial data circuit. The ECM decodes the serial data signal and is used as voltages for throttle position sensor 1 and 2. The Diagnostic Trouble Code (DTC) will be set when the ECM detects the throttle position sensor 2 signal voltage is less than 0.25 V for greater than 1 s.

OBDII Code P0222 Cadillac - Throttle Position Sensor 2 Circuit Low Voltage - AutoCodes.com — P0222 Cadillac Code - Throttle Position Sensor 2 Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P0222 Cadillac?

Faulty Throttle Body Assembly
Throttle Body Assembly harness is open or shorted
Throttle Body Assembly circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0222 Cadillac?

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 P0222 Cadillac 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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Need more information on how to fix the P0222 Cadillac code? Get Access to Factory Service Manuals

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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.

Frequently Asked Questions about P0222 Cadillac Code

1. What are the common symptoms of OBDII code P0222 in a Cadillac related to the Throttle Position Sensor 2 Circuit Low Voltage?

The common symptoms include reduced engine power, hesitation or stalling when accelerating, and illuminated Check Engine Light.

2. What are possible causes of the Throttle Position Sensor 2 Circuit Low Voltage code (P0222) in a Cadillac?

The code P0222 can be triggered by issues such as a faulty throttle position sensor, damaged wiring or connectors, poor electrical connection, or a problem with the engine control module.

3. How can I diagnose the cause of OBDII code P0222 in my Cadillac?

Diagnosing the code P0222 involves checking the throttle position sensor for proper operation, inspecting the related wiring and connectors for damage, and using a scan tool to monitor sensor data and voltage readings.

4. Can a dirty throttle body cause the P0222 code in a Cadillac?

Yes, a dirty or carbon-fouled throttle body can cause erratic readings from the throttle position sensor, leading to the P0222 code. Regular maintenance of the throttle body can help prevent such issues.

5. Is it safe to continue driving with the Throttle Position Sensor 2 Circuit Low Voltage code (P0222) in my Cadillac?

It is not recommended to drive with the P0222 code present, as it can lead to performance issues and potentially cause further damage to the engine. It is advisable to address the issue promptly.

6. How can I repair the Throttle Position Sensor 2 Circuit Low Voltage code (P0222) in my Cadillac?

Repairing the P0222 code typically involves replacing the throttle position sensor if it is faulty, repairing any damaged wiring or connectors, and clearing the trouble code with a scan tool.

7. Can a DIY enthusiast fix the P0222 code in a Cadillac, or is professional help recommended?

Depending on your experience and comfort level with automotive repairs, you may be able to address the P0222 code yourself by following repair guides and using the necessary tools. However, if unsure, seeking professional help is recommended.

8. Will resetting the trouble codes make the P0222 code go away permanently?

Simply resetting the trouble codes may temporarily clear the P0222 code, but if the underlying issue causing the fault is not addressed, the code is likely to reappear. It is crucial to diagnose and repair the root cause of the problem.

9. How much does it cost to repair the Throttle Position Sensor 2 Circuit Low Voltage code (P0222) in a Cadillac?

The cost of repairing the P0222 code can vary depending on the cause of the issue, the cost of parts, and labor rates. It is advisable to obtain quotes from reputable repair shops or dealerships for an accurate estimate.

10. Can a bad throttle position sensor cause other issues besides triggering the P0222 code in a Cadillac?

Yes, a malfunctioning throttle position sensor can cause a variety of performance issues, including poor fuel efficiency, rough idling, and difficulties with acceleration and shifting. Promptly addressing sensor issues is crucial for the overall health of the vehicle.