P1F64 Buick Code - Hybrid/EV System Voltage Discharge Circuit Low Voltage
Quick Answer
This is an internal fault detection of the power inverter module, often referred to as the drive motor generator power inverter module. Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter Module circuit poor electrical connection. 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
- P1F64 Buick indicates Hybrid/EV System Voltage Discharge Circuit Low Voltage.
- Common causes
- Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter Module circuit poor electrical connection.
- 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.
Code P1F64 Buick Description
What are the Possible Causes of the DTC P1F64 Buick?
- Faulty Power Inverter Module
- Power Inverter Module harness is open or shorted
- Power Inverter Module circuit poor electrical connection
How to Fix the DTC P1F64 Buick?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1F64 Buick code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1F64 Buick Code
What does the OBDII code P1F64 mean on a Buick?
The P1F64 code indicates a problem with the Hybrid/EV system's voltage discharge circuit, specifically detecting low voltage in this circuit.
What are the common symptoms of the P1F64 code?
Symptoms may include a Check Engine Light, reduced hybrid system performance, limited power, or the vehicle entering a fail-safe or limp mode.
What causes the P1F64 code to appear?
Common causes include a malfunctioning voltage discharge circuit, faulty wiring or connectors, a failed hybrid battery control module, or issues in the hybrid/EV system's electrical components.
Can I drive my Buick with the P1F64 code present?
Driving with the P1F64 code is not recommended, as it may cause reduced performance or further damage to the hybrid/EV system.
How is the P1F64 code diagnosed?
A technician will use a diagnostic scanner to confirm the code, inspect the voltage discharge circuit, check for damaged wiring or connectors, and test the hybrid battery and related components.
What repairs are needed to fix the P1F64 code?
Repairs may involve replacing the voltage discharge circuit, repairing or replacing damaged wiring, addressing issues with the hybrid battery control module, or recalibrating the system.
Does the P1F64 code affect fuel efficiency?
Yes, the P1F64 code can reduce fuel efficiency as the hybrid system may not function optimally or could be disabled.
How much does it cost to fix the P1F64 code on a Buick?
Repair costs vary but can range from $200 to $1,500 or more, depending on whether the issue involves simple wiring repairs or major component replacements.
Can a software update fix the P1F64 code?
In some cases, a software update or reprogramming of the hybrid battery control module may resolve the issue if it’s caused by incorrect system calibration.
What should I do if the P1F64 code comes back after repairs?
If the code recurs, recheck the wiring, components, and module calibration, and consider seeking a second opinion from a qualified hybrid/EV technician.
Discuss the causes and fixes for P1F64 Buick OBDII Code
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