The Buick fault code P1511 indicates an issue with the Throttle Actuator Control System.
Symptoms include the Engine Light being ON.
The cause is often a faulty Throttle Actuator Control Motor or related wiring issues.
This is a moderate issue that can affect vehicle performance.
To fix it, inspect the wiring harness and connectors for any damage or poor connections.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 6.67 (Out of 10) |
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Symptoms for Buick p1511
The vehicle may experience rough idling or stalling when fault code P1511 is present.
- Symptoms: Engine Light ON.
- The engine may idle roughly or stall intermittently.
- The vehicle might exhibit a lack of power during acceleration.
Causes for Buick p1511
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P1511 in a Buick is typically triggered by issues with the Throttle Actuator Control Module.
- P1511 can be caused by a faulty Throttle Actuator Control Motor.
- A Throttle Actuator Control Motor harness that is open or shorted.
- A Throttle Actuator Control Motor circuit with a poor electrical connection.
Fix for Buick p1511
Address the issue by cleaning the throttle body and checking for any vacuum leaks.
- To fix P1511, Review the possible causes related to the Throttle Actuator Control Module performance.
- Visually inspect the wiring harness and connectors for any damage.
- Check the connector pins for signs of being broken, bent, pushed out, or corroded.
- Perform a thorough inspection of the throttle actuator and its wiring connections.
- Reset the Throttle Actuator Control Module and clear the fault codes.
- If the issue persists, consider replacing the Throttle Actuator Control Module with a new one.
Description for Buick p1511
Buick fault code P1511 relates to the Throttle Actuator Control System.
Code P1511 for a Buick indicates a Throttle Actuator Control System Malfunction.
This code is triggered by the Engine Control Module (ECM) when it detects an issue with the throttle actuator control system.
The throttle actuator control system regulates the throttle plate to control the engine’s air intake.
When P1511 is set, it typically points to a problem with the throttle actuator control module or its circuitry.
This can lead to drivability issues and poor engine performance.
Tech Notes for Buick p1511
For Buick fault code P1511, check for issues with the throttle control system.
Fault code P1511 in a Buick typically indicates an issue with the Throttle Actuator Control Module (TAC) system.
To diagnose and fix this fault code, you can start by checking the power and ground connections to the TAC module using a multimeter.
Ensure that there is proper voltage and continuity in these circuits.
Next, use a scan tool to communicate with the TAC module and check for any stored trouble codes or live data related to the throttle system.
This can help pinpoint the exact cause of the issue, such as a faulty throttle body, wiring problem, or sensor malfunction.
Inspect the wiring harness and connectors associated with the TAC module for any visible damage, corrosion, or loose connections.
Pay close attention to the connector pins for any signs of being broken, bent, pushed out, or corroded.
Address any issues found during this visual inspection.
If the above steps do not resolve the P1511 fault code, consider performing a reflash or reprogramming of the TAC module.
This process can sometimes correct softwarerelated issues that may be causing the fault code to appear.
By following these diagnostic steps and procedures, you can effectively diagnose and fix the P1511 fault code in a Buick related to the Th
FAQ
Common symptoms of fault code P1511 in a Buick include the Engine Light ON and possible issues with the Throttle Actuator Control Motor circuit.
Fault code P1511 in a Buick is typically caused by a faulty Throttle Actuator Control Motor or related wiring issues. Inspect and repair as needed.
Diagnose and repair P1511 in your Buick by checking for a faulty Throttle Actuator Control Motor, open/shorted harness, or poor electrical connection. Inspect wiring and connectors for damage.
