The Buick fault code P1654 indicates an issue with the AC clutch relay circuit.
Symptoms include the Engine Light being ON.
This code is commonly caused by a faulty AC relay, open or shorted AC relay harness, or poor electrical connection.
It’s not a severe issue.
To fix it, inspect the wiring harness, connectors, and relay for any damage or corrosion.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 6.67 (Out of 10) |
I know how frustrating it is to see that warning light pop up again and again. You don’t need to spend money at the mechanic just to clear it. With this pocket-friendly automatic car scanner, you can do it yourself in seconds and and avoid the time and inconvenience of driving to a mechanic. Just plug it in, connect to your Android or iOS phone, and instantly see live data. Understand the fault code, clear it right away, and decide if it’s something urgent or if you’re good to drive. It even monitors your car and sends notifications to your phone, so you’re always in control. Simple, fast, and stress-free—today’s offer price!
Symptoms for Buick p1654
The vehicle may experience issues with the cruise control system due to fault code P1654.
- Symptoms: Service Engine Soon Warning Light comes on.
- Engine may stall unexpectedly.
- Vehicle may have difficulty starting.
- Engine may run rough or have poor acceleration.
Causes for Buick p1654
Do you know you can clear most fault codes—but some could mean serious danger? Don’t take chances with your safety or your family’s safety. This budget-friendly car scanner makes it easy to clear fault codes in seconds while showing you exactly what’s wrong. Plug it in, connect to your Android or iOS phone, and instantly check live data. You’ll know if it’s a minor issue you can clear or something serious that needs attention—so you can drive safely and stress-free. (Today’s Deal)
P1654 in a Buick typically indicates a malfunction in the cruise control setresume switch circuit.
- P1654 can be caused by a faulty A/C Relay.
- An open or shorted A/C Relay harness.
- Poor electrical connection in the A/C Relay circuit.
Fix for Buick p1654
Address the issue by checking the powertrain control module (PCM) for a malfunction.
- To fix P1654, Review the possible causes mentioned above and visually examine the corresponding wiring harness and connectors.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- If no visible issues are found, perform a thorough check of the throttle actuator control module and its circuitry for any faults.
- Test the throttle actuator control module for proper operation and replace it if necessary.
- Finally, clear the fault codes and perform a test drive to ensure the issue has been resolved.
Description for Buick p1654
The Buick fault code P1654 relates to the cruise control set signal circuit malfunction.
Code P1654 for a Buick indicates an error with the cruise control set signal.
This code is triggered by the ECM when it detects a discrepancy in the cruise control set signal circuit.
The ECM monitors this signal to control the vehicle’s speed based on the driver’s input.
If the signal is not within the expected range, the ECM will set code P1654.
Tech Notes for Buick p1654
For Buick fault code P1654, check the powertrain control module (PCM) for internal errors.
Fault code P1654 in a Buick typically indicates an issue with the cruise control set signal circuit.
To diagnose this, you can start by visually inspecting the wiring harness and connectors related to the cruise control system.
Look for any visible damage, corrosion, or loose connections.
Next, use a multimeter to check the voltage at the cruise control set switch.
Ensure that the voltage is within the specified range.
If the voltage is abnormal, it could indicate a problem with the switch itself.
Additionally, using a scan tool, you can monitor the data stream to see if the cruise control module is receiving the correct signals from the set switch.
If there are discrepancies in the data, it may point to a faulty switch or a wiring issue.
If all wiring and components check out, reflashing the cruise control module with the latest software may be necessary to resolve the P1654 fault code.
Remember, always refer to the specific diagnostic procedures outlined in the service manual for your Buick model to ensure an accurate diagnosis and repair.
FAQ
Fault code P1654 in a Buick indicates an issue with the A/C relay circuit. Check for faulty A/C relay, open/shorted harness, or poor electrical connection. Inspect wiring and connectors.
To diagnose a P1654 fault code in a Buick, check for a faulty A/C relay, open/shorted harness, or poor electrical connection. Inspect wiring and connectors for damage.
Common fixes for a P1654 fault code in a Buick include checking the A/C relay, harness, and connections for faults or damage.
