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 found a problem with the wires that help the electric motor spin. It's like if the wires to your toy car's motor were not connected properly, so the car can't move right.
The P0C05 code indicates that there is an electrical issue in the circuit that controls the phases (U, V, W) of Drive Motor A. This could mean an open circuit or a connection problem, affecting the motor's performance.
This diagnostic trouble code (DTC) is triggered when the powertrain control module (PCM) detects an open circuit or a fault in the U, V, or W phase of Drive Motor A. This can affect the motor's ability to operate efficiently and may lead to reduced vehicle performance.
• Reduced vehicle performance
• Illuminated check engine light
• Unusual noises from the motor
• Faulty wiring or connectors in the motor circuit
• Damaged drive motor
• Malfunctioning power inverter module
PCM: Powertrain Control Module
DTC: Diagnostic Trouble Code
• Inspect the wiring and connectors for damage or disconnection.
• Check the drive motor for any visible signs of damage.
• Test the power inverter module for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the drive motor if found faulty.
• Replace or repair the power inverter module if necessary.
• Multimeter
• OBD-II scanner
• Basic hand tools
$300 - $1500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regular inspection of electrical connections
• Routine maintenance of the drive motor
• Avoiding exposure to extreme conditions
Electrical Circuit Issue
• Do not ignore the check engine light.
• Seek professional diagnosis if unsure.
• Avoid driving the vehicle extensively until repaired.
Check with the vehicle manufacturer for warranty coverage on hybrid or electric components.
This code is common in hybrid and electric vehicles as they rely heavily on electric motor circuits.
Moderate – It may not cause immediate breakdown but should be addressed to avoid further damage.
Driving with a malfunctioning electric motor circuit can lead to reduced performance and potential safety risks.
• Vehicle in 'Ready' mode
• Motor operating under load
The drive motor and associated wiring are typically located near the vehicle's axle or engine compartment.
Q: Can I drive with a P0C05 code?
A: It's not recommended to drive extensively with this code as it may lead to further damage.
Q: What happens if I ignore this code?
A: Ignoring the code can result in reduced vehicle performance and potentially more costly repairs.
High-End · Full-system diagnostics
A full-system bidirectional platform aimed at advanced DIY users and professional diagnostic workflows.
Network faults often require full-system access instead of a generic code reader alone.
View on Amazon
Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking voltage drops, grounds, and basic circuit health when modules are not communicating.
View on Amazon
Universal · Wire connectors and repair kit
Useful when diagnosis points toward damaged wiring, corroded terminals, or connector repairs.
Useful if diagnosis points toward damaged connectors, wiring, or terminal repairs.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.