P0675 2014 Chevrolet Silverado Code - Cylinder 5 Glow Plug Circuit Fault
Quick Answer
n the diesel engine, air alone is compressed in the cylinder. Common causes include Faulty cylinder #5 glow plug, Cylinder #5 glow plug harness is open or shorted, Cylinder #5 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
- P0675 2014 Chevrolet Silverado indicates Cylinder 5 Glow Plug Circuit Fault.
- Common causes
- Common causes include Faulty cylinder #5 glow plug, Cylinder #5 glow plug harness is open or shorted, Cylinder #5 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 P0675 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.
What are the Possible Causes of the DTC P0675 2014 Chevrolet Silverado?
- Faulty cylinder #5 glow plug
- Cylinder #5 glow plug harness is open or shorted
- Cylinder #5 glow plug circuit poor electrical connection
- Faulty Glow Plug Control Module (GPCM)
How to Fix the DTC P0675 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 P0675 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 P0675 2014 Chevrolet Silverado Code
What does the OBDII code P0675 mean on a 2014 Chevrolet Silverado?
1. P0675 indicates a fault in the glow plug circuit for cylinder 5, meaning the glow plug is not functioning as expected or there is an issue in the wiring or control circuitry. 2.
What are the symptoms of a P0675 code in a 2014 Chevrolet Silverado?
Common symptoms include hard cold starts, rough idle when cold, reduced fuel efficiency, and possible illumination of the check engine light. 3.
What causes the P0675 code to appear?
Possible causes include a faulty glow plug in cylinder 5, damaged or corroded wiring, a bad glow plug control module, or poor electrical connections in the glow plug circuit. 4.
How do I diagnose the P0675 code on my Silverado?
Start by visually inspecting the wiring and connectors for damage or corrosion. Next, test the cylinder 5 glow plug’s resistance with a multimeter and check the glow plug control module for proper operation. 5.
Can I drive my Silverado with a P0675 code?
Yes, but it’s not recommended for extended periods. Driving with this code may cause hard starts in cold weather and could lead to additional engine performance issues over time. 6.
How do I fix the P0675 code on a 2014 Chevrolet Silverado?
Common repairs include replacing the faulty glow plug in cylinder 5, repairing or replacing damaged wiring, cleaning corroded connections, or replacing the glow plug control module if necessary. 7.
How much does it cost to repair a P0675 code?
Replacing a glow plug typically costs $100–$300, depending on labor rates and parts costs. Additional repairs, such as fixing wiring or replacing the control module, may increase the cost. 8.
Can a bad glow plug cause engine damage?
A bad glow plug itself won’t typically cause engine damage, but prolonged cold starts and poor combustion due to the fault can lead to increased wear on engine components over time. 9.
How can I prevent the P0675 code from recurring?
Regularly inspect the glow plug system, ensure all connections are clean and secure, and replace glow plugs as part of routine maintenance according to the manufacturer’s recommendations. 10.
What tools do I need to troubleshoot a P0675 code?
You’ll need an OBDII scanner, a multimeter to test resistance, and basic hand tools to inspect and replace the glow plug or repair wiring.
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