P0C69 Code - Generator Position Sensor Circuit 'B'
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
- P0C69 indicates Generator Position Sensor Circuit 'B'.
- 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 P0C69 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 P0C69?
- Faulty Inverter with converter assembly
- Faulty Hybrid vehicle generator assembly
- Faulty Hybrid vehicle motor assembly
- Wire harness or connector
How to Fix the DTC P0C69?
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 P0C69 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 P0C69 Code
1. What does the OBDII code P0C69 mean?
The P0C69 code indicates an issue with the Generator Position Sensor Circuit 'B,' which monitors the position of the generator or alternator to ensure proper operation.
2. What are the common symptoms of a P0C69 code?
Symptoms may include a malfunctioning alternator, the battery warning light on the dashboard, electrical system failures, or difficulty starting the engine.
3. What causes the P0C69 code to appear?
Common causes include a faulty generator position sensor, damaged wiring or connectors in the sensor circuit, or internal issues with the alternator.
4. Can I drive with a P0C69 code?
Driving with a P0C69 code is not recommended as it can lead to battery drainage, electrical system failures, or further damage to the charging system.
5. How is the P0C69 code diagnosed?
A mechanic will use a scan tool to confirm the code, inspect the generator position sensor and its wiring, and test the alternator for proper functionality.
6. How do you fix a P0C69 code?
Repairs may include replacing the generator position sensor, repairing or replacing damaged wiring or connectors, or replacing the alternator if it has failed.
7. How much does it cost to repair a P0C69 code?
Repair costs vary but can range from $100 to $500 or more, depending on whether the sensor, wiring, or alternator needs to be replaced.
8. Can a dead battery trigger a P0C69 code?
A dead battery itself may not trigger this code, but a failing alternator or sensor causing the battery to drain could lead to the P0C69 code.
9. Is the P0C69 code related to a hybrid vehicle’s system?
Yes, this code is more commonly associated with hybrid vehicles where the generator plays a role in managing both charging and propulsion systems.
10. Can I reset the P0C69 code without fixing the problem?
You can clear the code temporarily with a scanner, but it will likely return unless the underlying issue is resolved.
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