P0019 Hummer Code - Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor 'B'
Quick Answer
The Crankshaft Position (CKP) sensor is a permanent magnet generator, known as a variable reluctance sensor. Common causes include Mechanical timing fault, Blocked oil passage, Low oil level. 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
- P0019 Hummer indicates Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor 'B'.
- Common causes
- Common causes include Mechanical timing fault, Blocked oil passage, Low oil level.
- 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 P0019 Hummer Description
The Camshaft Position (CMP) sensor is triggered by a notched reluctor wheel built into the exhaust camshaft sprocket. The CMP sensor provides 6 signal pulses every camshaft revolution. Each notch, or feature of the reluctor wheel is of a different size for individual cylinder identification. This means the CMP and crankshaft position (CKP) signals are pulse width encoded to enable the PCM to constantly monitor their relationship. This relationship is used to determine camshaft actuator position and control its phasing at the correct value. The PCM also uses this signal to identify the compression stroke of each cylinder, and for sequential fuel injection. The CMP sensor is connected to the PCM by a 12-volt, low reference, and signal circuit.
What are the Possible Causes of the DTC P0019 Hummer?
- Mechanical timing fault
- Blocked oil passage
- Low oil level
- Faulty Exhaust ('B') Camshaft Position (CMP) Sensor
- Faulty Crankshaft Position (CKP) Sensor
How to Fix the DTC P0019 Hummer?
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 P0019 Hummer 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 P0019 Hummer Code
1. What are the common symptoms of OBDII code P0019 in a Hummer?
The common symptoms include rough idle, engine misfires, poor acceleration, and the Check Engine light illuminating on the dashboard.
2. What does the OBDII code P0019 indicating Crankshaft Position - Camshaft Position Correlation Bank 2 Sensor 'B' mean?
This code indicates a problem with the correlation between the crankshaft position sensor and the camshaft position sensor on bank 2, sensor 'B' in your Hummer.
3. What are the possible causes of OBDII code P0019 in a Hummer?
Possible causes include a faulty camshaft position sensor, a faulty crankshaft position sensor, timing chain or belt issues, engine oil circulation problems, or wiring/connectivity issues.
4. How can I diagnose the OBDII code P0019 in my Hummer?
Diagnosing this code typically involves checking the camshaft and crankshaft sensors, inspecting the timing chain or belt for proper alignment, testing the oil pressure, and conducting a thorough visual inspection of the related components.
5. How can I repair OBDII code P0019 in my Hummer?
Repairing this code may involve replacing the camshaft position sensor, crankshaft position sensor, timing chain or belt, addressing oil circulation issues, or repairing any wiring problems. It's recommended to follow the manufacturer's diagnostic and repair procedures.
6. Can I continue driving my Hummer with OBDII code P0019 present?
It's not advisable to continue driving your vehicle with this code present, as it can lead to further engine damage or performance issues. It's best to address the underlying problem as soon as possible.
7. Will resetting the OBDII code P0019 in my Hummer make it go away permanently?
Resetting the code may temporarily turn off the Check Engine light, but if the underlying issue is not fixed, the code is likely to reappear. It's important to diagnose and repair the root cause of the problem.
8. How much does it typically cost to repair OBDII code P0019 in a Hummer?
The cost of repairing this code can vary depending on the specific cause of the issue, parts needed for replacement, labor costs, and whether you choose to go to a dealership or an independent mechanic. It's recommended to get a few quotes for an accurate estimate.
9. Are there any preventive maintenance measures to avoid OBDII code P0019 in a Hummer?
Regularly scheduled maintenance, such as oil changes, checking and replacing timing components as recommended by the manufacturer, and addressing any engine performance issues promptly can help prevent this code from occurring.
10. Can a DIY enthusiast fix OBDII code P0019 in a Hummer?
While some aspects of diagnosing and repairing this code may be within the capabilities of a skilled DIY enthusiast, it's recommended to have a professional mechanic with experience in handling engine timing and sensor-related issues to ensure proper diagnosis and repair.
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