P0675 2017 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 2017 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 2017 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 2017 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 2017 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 2017 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 2017 Chevrolet Silverado Code
1. What does the OBDII code P0675 mean on a 2017 Chevrolet Silverado?
P0675 indicates a fault in the glow plug circuit for cylinder 5, meaning the glow plug is not heating properly or there’s an issue in the wiring or control.
2. What are the symptoms of code P0675 in a 2017 Chevrolet Silverado?
Common symptoms include difficulty starting the engine in cold weather, rough idling, reduced fuel efficiency, and an illuminated check engine light.
3. What causes the P0675 code in a 2017 Chevrolet Silverado?
Potential causes include a faulty glow plug in cylinder 5, damaged wiring or connectors in the glow plug circuit, or a malfunctioning glow plug control module.
4. Can I drive my 2017 Chevrolet Silverado with a P0675 code?
While it’s possible to drive with this code, it’s not recommended, especially in cold weather, as it may lead to hard starting or additional engine issues over time.
5. How do I troubleshoot the P0675 code on my 2017 Chevrolet Silverado?
Start by inspecting the glow plug for cylinder 5, checking for physical damage or excessive resistance. Then, inspect the wiring, connectors, and test the glow plug control circuit.
6. How do I fix the P0675 code on my 2017 Chevrolet Silverado?
Repair or replace the faulty glow plug, repair damaged wiring or connectors, or replace the glow plug control module if necessary.
7. How much does it cost to fix a P0675 code on a 2017 Chevrolet Silverado?
Replacing a glow plug typically costs $100-$300, depending on labor rates and part costs. Wiring or module repairs may increase the cost.
8. Can a bad battery cause the P0675 code on a 2017 Chevrolet Silverado?
While unlikely, a weak or failing battery can contribute to glow plug circuit issues by not providing sufficient power for proper operation.
9. How can I prevent the P0675 code from occurring again?
Regularly inspect and maintain the glow plugs, wiring, and connectors, especially before winter. Address any issues with the glow plug system promptly.
10. Will clearing the P0675 code fix the problem on my 2017 Chevrolet Silverado?
Clearing the code will turn off the check engine light temporarily, but it won’t fix the underlying issue. Proper diagnosis and repair are required to resolve the problem.
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