Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer thinks the big battery that helps power the car isn't giving out enough electricity when it's supposed to.
The P1C05 code indicates that the voltage from the hybrid or electric vehicle battery pack is lower than expected during discharge.
The P1C05 code is triggered when the vehicle's powertrain control module (PCM) or battery management system (BMS) detects that the voltage output from the hybrid or electric vehicle battery pack is below the threshold required for normal operation. This could be due to a fault in the battery pack itself, the wiring, or the control systems monitoring the battery.
• Reduced vehicle performance
• Warning light on the dashboard
• Increased fuel consumption (for hybrids)
• Faulty hybrid/EV battery pack
• Poor electrical connections in the battery system
• Malfunctioning battery management system (BMS)
PCM: Powertrain Control Module
BMS: Battery Management System
• Check for any other related codes.
• Inspect the battery pack connections and wiring.
• Test the battery pack voltage and capacity.
• Repair or replace faulty battery connections.
• Replace the hybrid/EV battery pack if necessary.
• Update or repair the battery management system.
• Digital multimeter
• OBD-II scanner
• Battery diagnostic tool
$500 - $5,000
Difficult
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular maintenance of the battery system
• Avoid deep discharges of the battery
• Ensure proper cooling of the battery pack
Battery Performance Issue
• Avoid driving the vehicle until the issue is resolved.
• Consult with a professional mechanic for a thorough diagnosis.
Battery packs often have separate warranties; check with the manufacturer for specific coverage.
This code has become more prevalent with the increase in hybrid and electric vehicle usage.
High – This issue can affect vehicle performance and efficiency.
Operating a vehicle with a malfunctioning battery system can lead to reduced performance and potential safety hazards.
• Vehicle in ready mode
• Battery pack under load
The hybrid/EV battery pack is typically located under the vehicle floor or in the trunk area.
Q: Can I drive my car with this code?
A: It's not recommended to drive the vehicle until the issue is resolved, as it can lead to further damage or reduced performance.
Q: How long do hybrid/EV batteries last?
A: Hybrid/EV batteries typically last 8-10 years, but this can vary based on usage and maintenance.
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