What Does the P2671 Code Mean?
The P2671 code is an OBD-II trouble code that indicates a high voltage in the actuator supply voltage “B” circuit. This code is specifically related to the transmission system of the vehicle, which relies on various actuators to engage and hold gears. When the engine control module (PCM) detects an incorrect signal from one of these actuators, it triggers the P2671 code.
What Causes the P2671 Code?
Several issues may lead to the activation of the P2671 code, including:
- Internal transmission failure
- Powertrain Control Module (PCM) failure
- Transmission actuator failure
- Transmission Control Module (TCM) failure
- Wiring issues within the circuit
What Are the Symptoms of the P2671 Code?
The primary symptom associated with the P2671 code is that the transmission may not shift properly. This can manifest in several ways:
- Harsh or delayed shifting
- Slipping gears
- Inability to shift into certain gears
How Serious Is the P2671 Code?
The P2671 code is classified as urgent, indicating that immediate action is necessary. Ignoring this code can lead to severe damage to the transmission system and potentially endanger the driver and passengers. It is crucial to address this issue promptly to avoid escalating repairs.
How to Diagnose the P2671 Code
Diagnosing the P2671 code involves a systematic approach:
- Use an OBD-II scanner to confirm the presence of the P2671 code.
- Inspect the wiring and connectors associated with the actuator supply voltage circuit for any signs of damage or corrosion.
- Check the transmission actuators and modules for proper function.
- Examine the PCM and TCM for any faults or failure indications.
Common Repairs for the P2671 Code
Repairs necessary to resolve the P2671 code may include:
- Replacing faulty actuators
- Repairing or replacing damaged wiring or connectors
- Reprogramming or replacing the PCM or TCM if they are found to be faulty
- Addressing internal transmission issues if applicable
How Much Does It Cost to Fix the P2671 Code?
The cost to fix the P2671 code can vary widely depending on the underlying issue. Simple wiring repairs may cost between $100 and $300, while replacing a transmission actuator can range from $300 to $1,000 or more, depending on the vehicle and labor costs. A full PCM replacement can also be quite expensive, potentially exceeding $1,500.
Can I Fix the P2671 Code Myself?
While some DIY enthusiasts may be able to address minor wiring issues or replace certain components, diagnosing and repairing the P2671 code often requires specialized knowledge and tools. If you are not experienced with automotive repairs, it is advisable to seek professional assistance to ensure that the problem is accurately diagnosed and properly resolved.
