Troubleshooting P0017: Crankshaft-Camshaft Position Correlation

Troubleshooting P0017: Crankshaft-Camshaft Position Correlation

Table of Contents:

1. Introduction
2. Understanding the P0017 Crankshaft Camshaft Position Correlation Fault Code
3. Possible Causes of the P0017 Fault Code
4. Importance of Engine Oil in Variable Valve Timing
5. Testing the Bank 1 Exhaust VVT Solenoid Valve
6. Testing the Exhaust OCV Power Supply Voltage
7. Testing the Exhaust OCV Functionality
8. Testing the VVT Operation Using a Scan Tool
9. Cleaning and Testing the Bank 1 Exhaust OCV
10. Testing the Bank 1 Exhaust Camshaft Position Sensor
11. Testing the Crankshaft Position Sensor
12. Testing the Bank 1 Exhaust VVT
13. Checking the Engine Timing

Article: How to Test and Fix the P0017 Crankshaft Camshaft Position Correlation Fault Code

Introduction: Welcome to the automotive diagnosis YouTube channel. In this video, we will guide you on how to test and fix the P0017 crankshaft camshaft position correlation fault code. This fault code indicates a timing misalignment between the crankshaft and camshaft on bank 1. We will take you through a step-by-step process to identify and resolve the possible causes of this fault code.

Understanding the P0017 Crankshaft Camshaft Position Correlation Fault Code: The P0017 fault code is triggered when the PCM detects any timing misalignment on the bank 1 exhaust side. This fault code is typically caused by issues with the engine oil, bank 1 exhaust solenoid valve, bank 1 exhaust camshaft position sensor, crankshaft position sensor, bank 1 exhaust VVT, or engine timing. To effectively diagnose and fix this issue, we will address each possible cause individually.

Possible Causes of the P0017 Fault Code:

1. Engine Oil: Variable valve timing relies on the proper functioning of the engine oil. It is essential to change the oil regularly, as old or contaminated oil can cause timing issues. If You have this fault code and haven't replaced the engine oil for a long time, start by changing the oil and cleaning the VVT solenoid valve.
2. Bank 1 Exhaust VVT Solenoid Valve: The VVT solenoid valve supplies engine oil to the VVT to advance or retard the timing. Some engines have a separate VVT oil filter that needs cleaning. Locate the exhaust VVT solenoid valve and perform a power supply test to ensure it is receiving the correct voltage.
3. Bank 1 Exhaust Camshaft Position Sensor: The camshaft position sensor reads the position of the camshaft and sends a signal to the PCM. Check the wiring and visually inspect the sensor. Ensure that the sensor is receiving proper power supply, producing the correct signal voltage, and has a good ground connection.
4. Crankshaft Position Sensor: The crankshaft position sensor detects the position of the crankshaft and sends a signal to the PCM. Test the sensor's internal resistance using a multimeter and compare it with the specification in the workshop manual. Replace the sensor if the resistance is not within the specified range.
5. Bank 1 Exhaust VVT: The bank 1 exhaust VVT is responsible for adjusting the timing on the exhaust side. Test the VVT's functionality by checking the engine timing with an oscilloscope. If the VVT fails to rotate as expected, it may need to be replaced.
6. Engine Timing: Incorrect engine timing or an extended timing chain can also trigger the P0017 fault code. If you have already removed the camshaft, check the timing chain and adjust the engine timing if necessary.

Importance of Engine Oil in Variable Valve Timing: One of the critical factors in variable valve timing (VVT) systems is the quality and regular replacement of the engine oil. The engine oil plays a vital role in providing lubrication to the VVT components and maintaining their proper functioning. Old or contaminated oil can lead to sludge buildup, which can hinder the oil supply to the VVT system. Therefore, it is crucial to change the engine oil on time to prevent VVT-related issues.

Testing the Bank 1 Exhaust VVT Solenoid Valve: To test the bank 1 exhaust VVT solenoid valve, start by locating it. Some engines have a separate VVT oil filter that needs cleaning. Remove and clean the filter thoroughly. Connect a multimeter to check the power supply voltage of the solenoid valve. With the ignition on, there should be battery voltage on the relevant pin. Next, perform an actuation test by activating the solenoid using the scan tool. If the engine hesitates or stalls, it indicates that the solenoid is functioning correctly.

Testing the Exhaust OCV Power Supply Voltage: The exhaust OCV (Oil Control Valve) receives power supply through the engine main relay. To test its power supply voltage, disconnect the bank 1 intake OCV connector and turn the ignition on. Using a multimeter, check the supply voltage on the relevant pin. The reading should match the battery voltage.

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