P01336 Code: Complete DIY Repair Guide

The P01336 trouble code is a diagnostic trouble code (DTC) that indicates a problem with the crankshaft position sensor (CKP) or the camshaft position sensor (CMP) in relation to the engine control module (ECM). This code typically arises when the ECM detects that the crankshaft position system variation has not been learned or is out of acceptable range. Understanding this code is crucial for vehicle owners and DIY mechanics, as it can lead to engine performance issues if not addressed promptly.

Symptoms of P01336 Code

When the P01336 code is triggered, drivers may experience various symptoms, including:

• Check Engine Light: The most common indicator is the illumination of the check engine light on the dashboard.
• Engine Misfires: The vehicle may experience misfiring, especially during acceleration.
• Loss of Power: Drivers might notice a significant decrease in engine power and responsiveness.
• Rough Idling: The engine may idle roughly or inconsistently.
• Stalling: In severe cases, the engine may stall unexpectedly while driving.

Technical Explanations

The P01336 code is primarily related to the crankshaft position sensor’s ability to communicate its position to the ECM. The CKP sensor plays a vital role in determining the engine’s timing and ensuring proper fuel injection and ignition. If the ECM cannot learn or recognize the variations in the crankshaft position, it triggers this code.

Key Components Involved:

• Crankshaft Position Sensor (CKP): Monitors the position and rotational speed of the crankshaft.
• Camshaft Position Sensor (CMP): Works alongside the CKP sensor to ensure proper timing between the crankshaft and camshaft.
• Engine Control Module (ECM): The computer that interprets signals from various sensors to manage engine functions.

Step-by-Step Diagnosis

Diagnosing a P01336 trouble code involves several steps:

1. Scan for Codes: Use an OBD-II scanner to confirm that P01336 is present and check for any additional codes that may provide further insight.
2. Inspect Wiring and Connectors: Examine the wiring harness and connectors associated with both the CKP and CMP sensors for signs of damage, corrosion, or loose connections.
3. Check Sensor Alignment: Ensure that both sensors are properly aligned with their respective reluctor wheels. Misalignment can lead to incorrect readings.
4. Test Sensors: Use a multimeter to test both sensors for proper voltage output. Consult manufacturer specifications for acceptable ranges.
5. Inspect Reluctor Wheel: Check for any damage or chipping on the reluctor wheel or signal plate that could affect sensor readings.
6. Perform Crankshaft Variation Learn Procedure: If applicable, follow manufacturer-specific procedures to allow the ECM to learn the new crankshaft position variations after repairs or replacements.
7. Clear Codes and Test Drive: After performing repairs, clear any codes and take the vehicle for a test drive to see if the P01336 code returns.

Solution Methods

1. Replace Faulty Sensors

If either the CKP or CMP sensor is found to be faulty during testing, replacing them is often necessary. Ensure you use OEM parts for compatibility and reliability.

2. Repair Wiring Issues

If damaged wiring or poor connections are identified, repair or replace these components as needed. Proper electrical connections are crucial for accurate sensor readings.

3. Relearn Crankshaft Variation

After replacing sensors or making significant repairs, it may be necessary to perform a crankshaft variation learn procedure using an advanced scan tool capable of this function.

4. Address Mechanical Issues

If mechanical problems such as timing belt misalignment or excessive crankshaft run-out are suspected, these issues must be resolved before further diagnostics can occur.

5. Replace Reluctor Wheel

In cases where a damaged reluctor wheel is found, replacing it may be necessary to restore proper function to the CKP sensor.

Cost Estimates

The costs associated with diagnosing and repairing a P01336 trouble code can vary widely depending on several factors:

• Diagnostic Fees: Expect to pay between $100-$150 for an initial diagnostic at a repair shop.
• Sensor Replacement: CKP and CMP sensors typically range from $50-$200 each, depending on make and model.
• Wiring Repairs: Costs can vary based on extent; simple repairs may cost around $50-$100, while extensive harness replacements can exceed $500.
• Labor Costs: Labor rates vary by region but generally range from $75-$150 per hour at most shops.

Warnings and Recommendations

• Always ensure that you have access to your vehicle’s service manual for specific diagnostic procedures related to your make and model.
• If you are not comfortable performing these diagnostics or repairs yourself, it is highly recommended to seek professional assistance from a certified mechanic.
• Ignoring a P01336 code can lead to more severe engine performance issues over time, so timely action is essential.

Closing Paragraph

Understanding and addressing the P01336 trouble code is crucial for maintaining your vehicle’s performance and reliability. By following this guide, DIY mechanics can effectively diagnose and resolve issues related to crankshaft position sensors and their associated systems. Always prioritize safety when working on vehicles, and do not hesitate to seek professional help if needed. Regular maintenance and prompt attention to warning codes can save you time and money in the long run.

Frequently Asked Questions About P01336

• What does P01336 mean?
  P01336 indicates that there is an issue with learning the crankshaft position system variation by the ECM.
• What causes a P01336 code?
  This code can be caused by faulty sensors, wiring issues, mechanical misalignments, or damaged reluctor wheels.
• How do I fix a P01336 code?
  Fixing this code typically involves testing and possibly replacing sensors, repairing wiring, or performing a relearn procedure.
• Can I drive my car with a P01336 code?
  While it may be possible to drive short distances, it’s advisable not to ignore this code as it can lead to more serious issues.
• How much does it cost to repair a P01336 code?
  The cost can range from $100 for diagnostics up to several hundred dollars depending on parts and labor needed.
• Is it safe to ignore a P01336 code?
  No, ignoring this trouble code can lead to decreased engine performance and potential damage over time.
• Will clearing the code fix my problem?
  No, simply clearing the code will not fix underlying issues; proper diagnosis and repair are necessary.
• When should I seek professional help for a P01336 code?
  If you’re unsure about diagnosing or repairing your vehicle’s issues, it’s best to consult with a certified mechanic.