P0C64 Code - Generator Position Sensor Circuit 'A'
Quick Answer
A resolver is a sensor that is used to detect the position of the magnetic poles the rotor of a motor generator. Common causes include Faulty Inverter with converter assembly, Faulty Hybrid vehicle generator assembly, Faulty Hybrid vehicle motor assembly. 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
- P0C64 indicates Generator Position Sensor Circuit 'A'.
- Common causes
- Common causes include Faulty Inverter with converter assembly, Faulty Hybrid vehicle generator assembly, Faulty Hybrid vehicle motor assembly.
- 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 P0C64 Description
Each resolver contains a stator that has an excitation coil and 2 detection coils (S, C). The gap between the stator and rotor changes as the rotor turns because the rotor is oval shaped. An alternating current with a predetermined frequency flows through the excitation coil, and detection coils S and C output alternating currents in accordance with the sensor rotor position.
The inverter with converter assembly (MG ECU) detects the absolute position of the rotor according to the phases of detection coils S and C and the heights of their waveforms. Furthermore, the CPU calculates the amount of change in the position within a predetermined length of time, in order to use the resolver as a speed sensor.
The MG ECU monitors signals output from the motor resolver and detects malfunctions.
What are the Possible Causes of the DTC P0C64?
- Faulty Inverter with converter assembly
- Faulty Hybrid vehicle generator assembly
- Faulty Hybrid vehicle motor assembly
- Wire harness or connector
How to Fix the DTC P0C64?
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 P0C64 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.
Need more information about the P0C64 code?
Need more information on how to fix the P0C64 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0C64 code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0C64 Code
1. What does the OBDII code P0C64 mean?
P0C64 indicates an issue with the Generator Position Sensor Circuit 'A', which monitors the position of the generator or alternator in hybrid or electric vehicles.
2. What are the common symptoms of code P0C64?
Symptoms may include a check engine light, reduced charging system performance, limited hybrid system functionality, or the vehicle entering limp mode.
3. What causes the P0C64 code?
Common causes include a faulty generator position sensor, damaged wiring or connectors in the circuit, or a malfunctioning hybrid control module.
4. Can I drive with the P0C64 code active?
It’s not recommended, as the charging system or hybrid functionality may be compromised, potentially leading to a breakdown or further damage.
5. How is the P0C64 code diagnosed?
Technicians use a scan tool to verify the code, inspect the generator position sensor and related wiring, and test for proper voltage and continuity in the circuit.
6. How do you fix the P0C64 code?
Repairs may involve replacing the generator position sensor, repairing damaged wiring or connectors, or reprogramming the hybrid control module if needed.
7. How much does it cost to fix the P0C64 code?
Repair costs can vary widely but typically range from $150 to $500, depending on whether the sensor, wiring, or other components need replacement.
8. Can a dead battery cause the P0C64 code?
While unlikely, a weak or faulty battery can sometimes contribute to electrical issues that impact the generator position sensor circuit.
9. What tools are needed to diagnose the P0C64 code?
A professional-grade scan tool, a multimeter for testing voltage and continuity, and wiring diagrams for the vehicle are commonly used.
10. Is the P0C64 code specific to certain vehicles?
P0C64 is primarily seen in hybrid or electric vehicles, as they rely on generator position sensors for proper system operation.
Discuss the causes and fixes for P0C64 OBDII Code
Code P0C64 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
