P1223 Code - Throttle Position Sensor 2 Circuit Low Input
Quick Answer
The P1223 diagnostic trouble code (DTC) indicates that there is a low input signal from the Throttle Position Sensor 2 (TPS 2) circuit. Common causes include Faulty Throttle Position Sensor 2, Wiring or connector issues in the TPS 2 circuit, ECM software or hardware problems. 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
- P1223 indicates Throttle Position Sensor 2 Circuit Low Input.
- Common causes
- Common causes include Faulty Throttle Position Sensor 2, Wiring or connector issues in the TPS 2 circuit, ECM software or hardware problems.
- 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 P1223 Description
The P1223 diagnostic trouble code (DTC) indicates that there is a low input signal from the Throttle Position Sensor 2 (TPS 2) circuit. The throttle position sensor is a crucial component that monitors the position of the throttle valve and sends signals to the engine control module (ECM) to adjust fuel delivery and ignition timing. In the case of TPS 2, it is likely a redundant sensor used for backup or verification purposes.
Common Causes of P1223
- Faulty Throttle Position Sensor 2.
- Wiring or connector issues in the TPS 2 circuit.
- ECM software or hardware problems.
- Corrosion or damage to TPS 2 components.
- Environmental factors such as moisture or debris affecting sensor operation.
Symptoms of P1223
- Loss of power or acceleration.
- Rough idling or uneven engine performance.
- Engine stalling or difficulty starting.
- Poor fuel economy.
- Check Engine Light illuminated on the dashboard.
How to Fix P1223
- Use a diagnostic scanner to confirm the P1223 code and identify the specific issue.
- Inspect TPS 2 wiring, connectors, and components for damage or corrosion.
- Test TPS 2 using a multimeter to determine if it is functioning correctly.
- Replace the faulty TPS 2 sensor if necessary.
- Clear the DTC and test drive the vehicle to ensure the problem is resolved.
Cost to Fix P1223
The cost of repairing a Throttle Position Sensor 2 Circuit Low Input issue can vary depending on the extent of the problem and the specific components that need to be replaced. In general, you can expect to pay anywhere from $100 to $300 for parts and labor. Keep in mind that labor rates at auto repair shops can fluctuate, so it's advisable to obtain quotes from multiple sources to ensure a fair price.
When is the Code Detected?
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Code P1223 Information for Specific Makes
- P1223 Audi — Cylinder Shut Off Exhaust Valves Open Circuit
- P1223 BMW — Pedal Position Sensor 2 High Input
- P1223 Chevrolet — Injector 1 Output Circuit
- P1223 Dodge — Leak Detection Based On Quantity Balance
- P1223 Ford — Pedal Demand Sensor B Circuit High Input
- P1223 GMC — Injector 1 Output Circuit
- P1223 Infiniti — Throttle Position Sensor 2 Circuit Low Input
- P1223 Lincoln — Pedal Demand Sensor B Circuit High Input
- P1223 MINI — Pedal Position Sensor 2 High Input
- P1223 Nissan — Throttle Position Sensor 2 Circuit Low Input
- P1223 Volkswagen — Cylinder Shut Off Exhaust Valves Open Circuit
Frequently Asked Questions about P1223 Code
1. What are the common symptoms of OBDII code P1223 (Throttle Position Sensor 2 Circuit Low Input)?
The common symptoms include poor acceleration, rough idling, stalling, and the vehicle going into "limp mode."
2. What are the possible causes of OBDII code P1223?
Possible causes of this code include a faulty throttle position sensor, damaged wiring or connectors in the throttle position sensor circuit, or a problem with the engine control module.
3. How can I diagnose the cause of OBDII code P1223?
Diagnosing the code typically involves using a scan tool to read the code and data from the throttle position sensor. Checking the sensor's wiring and connectors for damage is also important.
4. Can a dirty throttle body cause OBDII code P1223?
Yes, a dirty throttle body can cause erratic readings from the throttle position sensor, leading to the code being triggered.
5. Is it safe to drive with OBDII code P1223 active?
It is not recommended to drive with this code active, as it can lead to poor engine performance and potential safety hazards.
6. How can I repair OBDII code P1223?
Repairing this code may involve replacing the throttle position sensor, repairing damaged wiring or connectors, or resetting the engine control module.
7. Can I clear OBDII code P1223 without fixing the underlying issue?
Clearing the code without addressing the root cause may temporarily turn off the check engine light, but the issue is likely to recur if not properly repaired.
8. Will OBDII code P1223 cause permanent damage to the engine?
While the code itself may not cause immediate damage, ignoring the underlying issue can lead to poor engine performance and potential long-term damage if left unresolved.
9. How much does it typically cost to fix OBDII code P1223?
The cost of fixing this code can vary depending on the root cause, but it may involve labor costs for diagnosis and repair, as well as the price of any parts that need replacement.
10. Can I prevent OBDII code P1223 from occurring?
Regular maintenance, such as cleaning the throttle body and inspecting the throttle position sensor, can help prevent this code from occurring.
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