P06CB 2014 Chevrolet Silverado Code - Cylinder 7 Glow Plug Incorrect
Quick Answer
n the diesel engine, air alone is compressed in the cylinder. Common causes include Faulty cylinder #1 glow plug, Cylinder #1 glow plug harness is open or shorted, Cylinder #1 glow plug 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
- P06CB 2014 Chevrolet Silverado indicates Cylinder 7 Glow Plug Incorrect.
- Common causes
- Common causes include Faulty cylinder #1 glow plug, Cylinder #1 glow plug harness is open or shorted, Cylinder #1 glow plug 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 P06CB 2014 Chevrolet Silverado Description
Control of the glow plugs is accomplished by the glow plug control module. The nominal voltage for the glow plugs is 5.4 volts. When the ignition is turned On, the glow plug control module applies 7.2 V for 2.2 s, then 5.7 V for 0.8 s, and then 5.4 V until 1200°C (2192°F) is reached. The maximum voltage of the system is 10 V. While the engine is running the voltage will vary between 4.7 - 10 V when in closed loop control to maintain a glow plug temperature that ranges from 1150° - 1180°C (2102° - 2156°F). The temperature and the power consumption are controlled between the Engine Control Module (ECM) and the glow plug control module within a wide range to suit the engine's pre-heating requirements. Each glow plug is energized individually. This capability yields more optimum heat times for the glow plugs, thus pre - glow times can be kept to a minimum for a short wait to crank times and maximum glow plug durability. A Diagnostic Trouble Code (DTC) will be set if the Glow Plug resistance is not within a calibrated range.
What are the Possible Causes of the DTC P06CB 2014 Chevrolet Silverado?
- Faulty cylinder #1 glow plug
- Cylinder #1 glow plug harness is open or shorted
- Cylinder #1 glow plug circuit poor electrical connection
- Faulty Glow Plug Control Module
How to Fix the DTC P06CB 2014 Chevrolet Silverado?
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 P06CB 2014 Chevrolet Silverado 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 P06CB 2014 Chevrolet Silverado Code
What does the OBD-II code P06CB mean for a 2014 Chevrolet Silverado?
P06CB indicates that the Engine Control Module (ECM) has detected an issue with the glow plug for cylinder 7, specifically that it is operating incorrectly or outside the expected range.
What are the common symptoms of code P06CB in a 2014 Chevrolet Silverado?
Symptoms may include difficulty starting the engine in cold weather, rough idle, reduced fuel efficiency, and the check engine light being illuminated.
What causes the P06CB code to appear in a 2014 Chevrolet Silverado?
Common causes include a faulty glow plug in cylinder 7, damaged glow plug wiring, a defective glow plug control module, or corrosion in the electrical connections.
Can a faulty glow plug cause engine damage if not repaired?
While a faulty glow plug might not directly cause engine damage, it can lead to hard starts, increased emissions, and potential stress on other engine components over time.
How do you diagnose a P06CB code on a 2014 Chevrolet Silverado?
Diagnosis typically involves scanning for codes, visually inspecting the glow plug and related wiring, testing the glow plug's resistance, and checking the glow plug control module for proper operation.
Can you drive a 2014 Chevrolet Silverado with a P06CB code?
While the truck may still be drivable, it’s not recommended to ignore the issue, especially in cold climates, as it can lead to starting problems and reduced engine performance.
What tools are needed to fix the P06CB code?
Basic tools include an OBD-II scanner, a multimeter for testing electrical components, and possibly a socket set for replacing the glow plug.
How much does it cost to fix a P06CB code on a 2014 Chevrolet Silverado?
The cost varies depending on the specific issue. Replacing a single glow plug typically costs $50–$150 for parts and labor, while a glow plug control module replacement can cost $200–$400.
Should all glow plugs be replaced if one is faulty?
While it’s not always necessary, replacing all glow plugs at once is often recommended, especially on higher-mileage vehicles, to ensure consistent performance.
Can a P06CB code be caused by extreme cold weather?
Cold weather itself doesn’t cause the code, but it can highlight an existing issue with the glow plug system, as the system works harder in low temperatures.
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