P0675 2016 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 2016 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 2016 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 2016 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 2016 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 2016 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.
Need more information about the P0675 2016 Chevrolet Silverado code?
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Frequently Asked Questions about P0675 2016 Chevrolet Silverado Code
1. What does the OBDII code P0675 mean on a 2016 Chevrolet Silverado?
P0675 indicates a fault in the glow plug circuit of cylinder 5, meaning the glow plug is not functioning properly or the circuit is damaged.
2. What are the symptoms of code P0675 in a 2016 Chevrolet Silverado?
Common symptoms include difficulty starting in cold weather, rough idling, reduced engine performance, and an illuminated check engine light.
3. What causes the P0675 code on a 2016 Chevy Silverado?
The most common causes include a failed glow plug, damaged wiring or connectors in the cylinder 5 glow plug circuit, or a faulty glow plug control module.
4. Can I drive with a P0675 code on my Silverado?
While the truck may still be drivable, it could experience hard starts in cold weather, and prolonged driving with this issue may lead to further engine problems.
5. How do I diagnose the P0675 code on a 2016 Chevrolet Silverado?
Diagnosis involves inspecting the glow plug, testing the circuit with a multimeter for voltage and resistance, and checking for damaged wiring or connectors.
6. How much does it cost to repair the P0675 code?
Repair costs vary, but replacing a single glow plug typically costs $50–$150, while wiring or control module repairs may cost more depending on labor and parts.
7. Can a bad glow plug in cylinder 5 cause other problems?
Yes, a bad glow plug can cause poor fuel combustion, reduced engine efficiency, and increased emissions, especially in cold weather.
8. What tools are needed to fix the P0675 code on a Silverado?
You’ll need a multimeter to test for electrical issues, a scan tool to clear codes, and basic hand tools to replace the glow plug or repair wiring.
9. Is the P0675 code specific to the 2016 Chevrolet Silverado?
No, the P0675 code can appear in other diesel vehicles, but the specific diagnosis and repair steps may differ depending on the make and model.
10. How do I prevent the P0675 code from returning?
Regular maintenance, including inspecting glow plugs and wiring for wear, and promptly addressing any related issues, can help prevent this code from recurring.
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