The Buick fault code P1751 indicates an issue with the Control Solenoid Valve Assembly in the transmission system.
Symptoms include the Engine Light being ON.
This is usually caused by a faulty solenoid valve assembly, open/shorted harness, or poor electrical connection.
It’s a moderate issue that should be addressed promptly.
To fix it, inspect the wiring harness and connectors for any damage or corrosion.
| Repair Importance Level | 10.0 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
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Symptoms of the Buick p1751 OBD Code
The vehicle may experience harsh shifting or slipping in the transmission with Buick fault code P1751.
- Symptoms: Service Engine Soon Warning Light comes on.
- Harsh shifting from the transmission.
- Loss of power during acceleration.
- Difficulty shifting gears.
- Whining or grinding noise from the transmission.
Causes of the Buick p1751 OBD Code
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Possible triggers for Buick fault code P1751 include issues with the transmission control module.
- P1751 can be caused by a faulty Control Solenoid Valve Assembly.
- A Control Solenoid Valve Assembly harness that is open or shorted.
- A Control Solenoid Valve Assembly circuit with poor electrical connection.
Fixing Buick Error Code p1751 Step By Step
Address the issue by inspecting the transmission control module and related wiring for faults or damage.
- To fix Buick code P1751, start by reviewing the possible causes mentioned above.
- Visually examine the wiring harness and connectors related to the transmission shift solenoid.
- Check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Test the transmission shift solenoid for proper operation.
- Replace the transmission shift solenoid if it is faulty.
- Clear the fault codes from the vehicle’s computer memory.
- Road test the vehicle to ensure the issue has been resolved.
Cost Of Fixing Buick p1751 Fault Code
Diagnosing and repairing Buick fault code P1751 may involve replacing the transmission shift solenoid.
The cost to diagnose and fix the Buick P1751 error depends on the estimated repair time of 1. 0 hour.
Most shops charge between $75 and $150 per hour for labor.
Therefore, the general cost could range from $75 to $150, depending on shop rates and the complexity of the repair.
Details of the Buick p1751 OBD Code
Buick fault code P1751 relates to the A/T Control Relay malfunction.
Code P1751 for a Buick indicates a problem with the A/T Control Relay.
This code is triggered by the ECM when it detects an issue with the automatic transmission control relay circuit.
The automatic transmission control relay is responsible for controlling power to various components in the transmission system, such as solenoids and sensors.
When this relay malfunctions or there is a circuit issue, the ECM will set code P1751 to indicate a problem with the transmission control relay circuit.
Mechanic’s Tech Notes for Buick Error Code p1751
P1751 in a Buick indicates a malfunction in the A/T Control Relay Circuit.
Fault code P1751 in a Buick typically indicates an issue with the transmission control module (TCM) power supply.
To diagnose and fix this issue, you can start by checking the TCM power and ground using a multimeter.
Ensure that the TCM is receiving the correct voltage and that the ground connection is solid.
Next, use a scan tool to communicate with the TCM and verify if it responds over the Controller Area Network (CAN) network.
If the TCM is not responding or communicating properly, it may need to be reprogrammed or reflashed.
Additionally, visually inspect the wiring harness and connectors related to the TCM.
Look for any signs of damage, such as frayed wires or corroded connectors.
Check the connector pins for any issues like being broken, bent, pushed out, or corroded.
By following these diagnostic steps, you can pinpoint the root cause of the P1751 fault code in your Buick and take appropriate action to resolve the issue.
FAQ
Common symptoms for fault code P1751 in a Buick include Engine Light ON. Causes may be a faulty Control Solenoid Valve Assembly or related wiring issues. Fix: Inspect and repair as needed.
The typical cause of fault code P1751 in a Buick vehicle is a faulty Control Solenoid Valve Assembly or issues with the related wiring harness and connectors.
Diagnose and repair P1751 in your Buick by checking the Control Solenoid Valve Assembly for faults, inspecting wiring harness, connectors, and related components for damage.
Wrap Up
If your Buick is displaying error code P1751, you may experience harsh shifting, transmission slippage, or the transmission may not engage properly.
This could be caused by a faulty transmission control module, a malfunctioning shift solenoid, or issues with the transmission fluid pressure sensor.
To address this, check the wiring harness for any damage, inspect the connectors for corrosion, and test the transmission fluid pressure sensor for proper operation.
Consider replacing the faulty sensor or solenoid if needed to resolve the issue.
