P0339 2018 Toyota RAV4 Code - Crankshaft Position Sensor 'A' Circuit Intermittent
Quick Answer
The Crankshaft Position Sensor system consists of a crank angle sensor plate and a pickup coil. Common causes include Faulty crankshaft position sensor, Crankshaft position sensor harness is open or shorted, Crankshaft position 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
- P0339 2018 Toyota RAV4 indicates Crankshaft Position Sensor 'A' Circuit Intermittent.
- Common causes
- Common causes include Faulty crankshaft position sensor, Crankshaft position sensor harness is open or shorted, Crankshaft position 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 P0339 2018 Toyota RAV4 Description
The sensor plate has 34 teeth and is installed on the crankshaft. The pickup coil is made of wound copper wire, an iron core, and a magnet. The crank angle sensor plate rotates and, as each tooth passes by the pickup coil, a pulse signal is created. The pickup coil generates 34 signals per crankshaft revolution. Based on these signals, the Engine Control Module (ECM) calculates the crankshaft position and engine speed. Using these calculations, the fuel injection and ignition timing are controlled. If there is no signal from the crankshaft position sensor despite the crankshaft rotating, the ECM interprets this as a malfunction of the sensor and the Diagnostic Trouble Code (DTC) will be set.
What are the Possible Causes of the DTC P0339 2018 Toyota RAV4?
- Faulty crankshaft position sensor
- Crankshaft position sensor harness is open or shorted
- Crankshaft position sensor circuit poor electrical connection
- Signal plate may be damaged
- Starter motor may be faulty
- Dead or weak battery
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0339 2018 Toyota RAV4?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0339 2018 Toyota RAV4 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 P0339 2018 Toyota RAV4 Code
1. What are common symptoms of OBDII code P0339 in a 2018 Toyota RAV4?
- Common symptoms include engine stalling, rough idling, difficulty starting the vehicle, and a noticeable decrease in fuel efficiency.
2. What does the OBDII code P0339 for a 2018 Toyota RAV4 indicate?
- This code indicates an intermittent issue with the Crankshaft Position Sensor 'A' Circuit, which can disrupt the engine's timing and performance.
3. What are the possible causes of OBDII code P0339 in a 2018 Toyota RAV4?
- Possible causes include a faulty crankshaft position sensor, damaged sensor wiring or connectors, issues with the sensor's alignment or clearance, or a malfunctioning engine control module (ECM).
4. How can I diagnose the source of OBDII code P0339 in my 2018 Toyota RAV4?
- Diagnosing this code may involve visually inspecting the sensor and its connections, checking for damaged wiring, testing the sensor's output voltage, and ensuring proper sensor alignment.
5. Can a faulty crankshaft position sensor be repaired, or does it need to be replaced?
- In most cases, a faulty crankshaft position sensor will need to be replaced rather than repaired to ensure reliable engine performance and accurate sensor readings.
6. What are some tips for repairing OBDII code P0339 in a 2018 Toyota RAV4?
- Ensure the crankshaft position sensor is properly aligned and has the correct clearance, use a reputable replacement sensor, and carefully follow manufacturer guidelines for installation.
7. Can I drive my 2018 Toyota RAV4 with OBDII code P0339?
- It is not advisable to continue driving with this code present, as it can lead to further engine issues and potential breakdowns. It's best to address the problem promptly.
8. How much does it typically cost to repair OBDII code P0339 in a 2018 Toyota RAV4?
- The cost of repairing this code can vary depending on the labor rates in your area, the cost of the replacement sensor, and whether any additional repairs or diagnostic tests are needed.
9. Are there any recalls or technical service bulletins related to OBDII code P0339 in a 2018 Toyota RAV4?
- It's recommended to check with your local Toyota dealership or refer to online databases to see if there are any relevant recalls or technical service bulletins for this issue.
10. Can OBDII code P0339 in a 2018 Toyota RAV4 cause permanent damage if left unaddressed?
- Ignoring this code can potentially lead to more severe engine problems over time, so it's important to address the underlying issue promptly to prevent further damage.
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