If you’re seeing the P0335 code pop up on your Jeep Wrangler, you’re probably wondering what’s going on under the hood and how it could affect your ride. This code points to a problem with the crankshaft position sensor, a small but crucial part that helps your engine run smoothly.
Ignoring it can lead to stalling, long crank times, or even a no-start condition—issues you definitely don’t want when you’re out on the road or off-roading. You’ll learn what causes the P0335 code, how to spot the symptoms early, and practical steps you can take to fix the problem.
Keep reading to get your Jeep back to peak performance and avoid costly repairs down the line.
P0335 Code And Jeep Wrangler
The P0335 code signals an issue with the crankshaft position sensor circuit. This code is common in Jeep Wranglers. It indicates the engine control module detects a problem in reading the crankshaft position sensor. This sensor is essential for engine timing and fuel injection.
When this code appears, the Jeep may stall or fail to start. The engine might crank longer than usual or not start at all. Understanding the cause helps to fix the problem quickly and safely.
What Triggers P0335
The P0335 code triggers when the Powertrain Control Module (PCM) finds no signal from the crankshaft position sensor. Faulty wiring, damaged sensors, or connector issues cause this. Dirt, oil, and heat can also harm the sensor or its circuit.
Loose or corroded wiring connections often lead to intermittent signals. A worn or broken sensor cannot send the correct signal. Sometimes, the reluctor ring on the crankshaft is damaged or misaligned, triggering P0335.
Role Of Crankshaft Position Sensor
The crankshaft position sensor monitors the crankshaft’s rotation speed and position. It sends data to the PCM to control fuel injection and ignition timing. This sensor ensures the engine runs smoothly and efficiently.
Without accurate data from this sensor, the engine’s timing goes off. This causes rough running, stalling, or no start conditions. The sensor’s role is vital for the Jeep Wrangler’s performance and emissions control.
Symptoms Of P0335
The P0335 code in a Jeep Wrangler signals a problem with the crankshaft position sensor circuit. This sensor helps the engine control module know the crankshaft’s position and speed. Faults here cause noticeable issues while driving. Recognizing symptoms early can prevent further damage and costly repairs.
Engine Stalling And No-start
The engine may stall suddenly without warning. This happens especially when the engine warms up. Sometimes, the Jeep might not start at all. The crankshaft sensor fails to send the right signals, causing the engine to cut out.
Extended Cranking Times
You might notice the engine takes longer to start. The starter motor cranks the engine for several seconds. This delay happens because the sensor data is missing or incorrect. The engine control module struggles to time ignition properly.
Check Engine Light Alerts
The Check Engine Light often turns on with a P0335 code. It stays lit while the sensor problem persists. A scan tool will confirm the P0335 trouble code. Ignoring this light risks engine damage and poor performance.
Quick Diagnostic Steps
Diagnosing the P0335 code on a Jeep Wrangler involves a few simple steps. These steps help identify if the crankshaft position sensor or its circuit has issues. Start by checking the sensor wiring and connectors. Then, test the sensor itself using a multimeter. Finally, scan for related trouble codes to get a clearer picture of the problem. Follow these quick diagnostic steps to find the root cause efficiently.
Inspect Sensor Wiring And Connectors
Begin by examining the wiring connected to the crankshaft position sensor. Look for signs of damage, such as frayed wires or corrosion. Check connectors for loose or dirty contacts. Clean any corrosion and ensure connectors fit tightly. Faulty wiring or poor connections often cause the P0335 code.
Test Sensor With Multimeter
Use a multimeter to check the sensor’s resistance and voltage signals. Set the multimeter to the appropriate settings for your sensor type. Measure the sensor’s resistance and compare it to the Jeep Wrangler’s specifications. Also, test the sensor’s signal output while cranking the engine. A faulty sensor will show inconsistent or no signal.
Use an OBD-II scanner to check for other error codes alongside P0335. Related codes can point to wiring or PCM issues. Clear all codes after inspection and retest. If the P0335 code returns, deeper troubleshooting or sensor replacement may be necessary. This step helps confirm the diagnosis and guides your next actions.
Easy Fixes To Try
Dealing with a P0335 code on your Jeep Wrangler can feel frustrating. This code signals an issue with the crankshaft position sensor circuit. Many fixes are simple and can save you time and money. Trying these easy steps might get your Jeep running smoothly again.
Clean Or Replace Wiring Harness
Start by checking the wiring harness connected to the crankshaft sensor. Dirt, corrosion, or damage can cause poor connections. Clean the connectors using electrical contact cleaner. Inspect the wires for any cuts or wear. Replace the wiring harness if you find broken or frayed wires. A good connection helps the sensor send accurate signals.
Swap Out Faulty Crankshaft Sensor
The crankshaft sensor itself can fail over time. Symptoms include stalling, hard starting, or engine misfires. Replacing the sensor is often straightforward. Locate the sensor near the engine block. Disconnect the electrical connector and remove the mounting bolt. Install the new sensor and reconnect the wiring. Test the Jeep to see if the code clears.
Reset The Engine Control Module
Sometimes, the engine control module (ECM) needs a reset to clear errors. Disconnect the Jeep’s battery for about 15 minutes. This action resets the ECM memory. Reconnect the battery and start the engine. The P0335 code may disappear if the problem was temporary. Use an OBD-II scanner to verify the code status. This step can refresh the system and help it run properly.
Preventive Tips For Jeep Owners
Maintaining your Jeep Wrangler helps avoid issues like the P0335 error code. Simple preventive steps keep your vehicle running smoothly. These tips protect the crankshaft position sensor and related parts.
Regular Sensor Inspections
Check the crankshaft position sensor often for damage or wear. Look for cracks, loose wires, or corrosion. Early detection stops small problems from becoming big repairs. Use a flashlight to see hard-to-reach spots clearly. Replace the sensor if it shows signs of failure.
Keep Electrical Connections Dry And Clean
Moisture and dirt cause sensor errors and electrical faults. Clean all sensor connections with a dry cloth. Avoid water near the sensor and wiring harness. Use dielectric grease to protect connectors from moisture. Secure wires to prevent rubbing and wear.
Use Quality Replacement Parts
Choose OEM or trusted brand sensors for replacements. Cheap parts often fail quickly and cause error codes. Quality parts fit properly and last longer under tough conditions. Always check the part number matches your Jeep model. Proper parts keep your engine signals accurate.
When To Seek Professional Help
Knowing when to get professional help for your Jeep Wrangler’s P0335 code can save time and money. Some problems are easy fixes. Others need expert care. Recognizing the right moment to seek help keeps your Jeep safe and reliable.
Persistent Engine Issues
Engine problems that do not go away need expert attention. If your Jeep stalls or struggles to start often, the crankshaft sensor or wiring might be faulty. A mechanic can find the root cause and fix it properly.
Complex Electrical Problems
Electrical faults linked to P0335 can be tricky to diagnose. Wiring issues or the Powertrain Control Module may cause errors. Professionals have the tools to test circuits and repair problems safely.
Sensor Replacement Costs
Replacing the crankshaft position sensor involves parts and labor fees. Prices vary by Jeep model and mechanic rates. A trusted shop provides a clear estimate before work begins, avoiding surprises.
Frequently Asked Questions
What Is The Code P0335 On A Jeep Wrangler?
Code P0335 on a Jeep Wrangler means the Powertrain Control Module detected a crankshaft position sensor circuit malfunction. This sensor monitors engine speed and position. A faulty sensor can cause stalling, long cranks, or no-start issues. Check wiring and replace the sensor if needed.
How Do I Fix Error Code P0335?
To fix error code P0335, inspect and repair crankshaft position sensor wiring. Replace the faulty sensor if needed. Clear the code and test drive.
What Causes A Crankshaft Position A Circuit Malfunction?
A crankshaft position sensor circuit malfunction occurs due to faulty wiring, damaged sensor, or poor electrical connections. This disrupts signal transmission to the engine control module.
How Much Does It Cost To Replace A Camshaft Position Sensor On A Jeep Wrangler?
Replacing a camshaft position sensor on a Jeep Wrangler costs between $100 and $250. Labor and parts influence the price.
Conclusion
The P0335 code signals a crankshaft position sensor problem in your Jeep Wrangler. Ignoring it can cause stalling or no-start issues. Check wiring and sensor condition early to avoid bigger troubles. Replacing the sensor often solves the problem quickly. Regular maintenance keeps your Jeep running smoothly and safely.
Stay alert to symptoms and act promptly for best results.
