P0502 Honda Code - CVT Speed Sensor Circuit Open/Short
Quick Answer
The Continuously Variable Transmission (CVT) Speed Sensor is attached to the outside of the torque converter housing. Common causes include Faulty Continuously Variable Transmission (CVT) Speed Sensor, CVT Speed Sensor harness or connectors is open or shorted, CVT Speed Sensor 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
- P0502 Honda indicates CVT Speed Sensor Circuit Open/Short.
- Common causes
- Common causes include Faulty Continuously Variable Transmission (CVT) Speed Sensor, CVT Speed Sensor harness or connectors is open or shorted, CVT Speed Sensor 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 P0502 Honda Description
What are the Possible Causes of the DTC P0502 Honda?
- Faulty Continuously Variable Transmission (CVT) Speed Sensor
- CVT Speed Sensor harness or connectors is open or shorted
- CVT Speed Sensor circuit poor electrical connection
- Faulty Powertrain Control Module (PCM)
How to Fix the DTC P0502 Honda?
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 P0502 Honda 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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Information for Specific Honda Models
- P0502 2016 Honda CR-V — CVT Speed Sensor Circuit Open/Short
- P0502 2017 Honda CR-V — CVT Speed Sensor Circuit Open/Short
- P0502 2018 Honda CR-V — CVT Speed Sensor Circuit Open/Short
- P0502 2019 Honda CR-V — CVT Speed Sensor Circuit Open/Short
- P0502 2020 Honda CR-V — CVT Speed Sensor Circuit Open/Short
- P0502 2021 Honda CR-V — CVT Speed Sensor Circuit Open/Short
Frequently Asked Questions about P0502 Honda Code
1. What does the OBDII code P0502 mean on a Honda?
P0502 indicates a "CVT Speed Sensor Circuit Open/Short," meaning there is an electrical issue with the circuit connected to the continuously variable transmission (CVT) speed sensor.
2. What are the common symptoms of a P0502 code on a Honda?
Symptoms may include erratic or delayed shifting, poor acceleration, reduced fuel efficiency, an illuminated check engine light, or the transmission going into limp mode.
3. What causes the P0502 code to appear on a Honda?
Common causes include a faulty CVT speed sensor, damaged wiring or connectors in the speed sensor circuit, a malfunctioning transmission control module (TCM), or corrosion at electrical connections.
4. How can I diagnose a P0502 code on my Honda?
Start by inspecting the CVT speed sensor and its wiring for damage or disconnections. Use a multimeter to check for continuity and proper voltage in the circuit, and scan for additional codes that could indicate related problems.
5. Can a P0502 code damage my Honda's transmission?
While the code itself doesn’t directly cause damage, driving with unresolved transmission issues or in limp mode for an extended period can lead to increased wear and potential damage.
6. How do I fix a P0502 code on a Honda?
Repairs may include replacing the faulty CVT speed sensor, repairing damaged wiring or connectors, or updating or reprogramming the transmission control module if needed.
7. Can I drive my Honda with a P0502 code?
It’s not recommended to continue driving with this code active, as it can affect your vehicle’s performance and may lead to further transmission issues.
8. How much does it cost to fix a P0502 code on a Honda?
The cost varies depending on the issue. Replacing a CVT speed sensor typically costs $100–$300, including parts and labor, while repairing wiring or connectors may vary based on the extent of the damage.
9. Will clearing the P0502 code fix the problem?
Clearing the code will temporarily turn off the check engine light, but the underlying issue must be repaired to prevent the code from returning.
10. Can a P0502 code be caused by a bad battery or alternator?
A failing battery or alternator can cause electrical issues that might trigger transmission-related codes like P0502, but this is less common. It’s worth testing the charging system if other electrical problems are present.
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