P133C 2016 GMC Sierra Code - Cylinder 5 Glow Plug Offset Exceeded Learning Limit
Quick Answer
The Glow Plug Control Module has not learned the glow plug offset values. Common causes include Perform Glow Plug Learn procedure, Faulty Glow Plug 5, Glow Plug 5 harness is open or shorted. 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
- P133C 2016 GMC Sierra indicates Cylinder 5 Glow Plug Offset Exceeded Learning Limit.
- Common causes
- Common causes include Perform Glow Plug Learn procedure, Faulty Glow Plug 5, Glow Plug 5 harness is open or shorted.
- 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 P133C 2016 GMC Sierra Description
What are the Possible Causes of the DTC P133C 2016 GMC Sierra?
- Perform Glow Plug Learn procedure
- Faulty Glow Plug 5
- Glow Plug 5 harness is open or shorted
- Glow Plug 5 circuit poor electrical connection
How to Fix the DTC P133C 2016 GMC Sierra?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P133C 2016 GMC Sierra 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 P133C 2016 GMC Sierra Code
What does the OBDII code P133C mean on a 2016 GMC Sierra?
The code P133C indicates that the glow plug offset for cylinder 5 has exceeded its learning limit, suggesting an issue with the glow plug or related circuitry.
What are the common symptoms of a P133C code?
Symptoms may include difficulty starting the engine in cold weather, reduced engine performance, a check engine light, or rough idling.
What causes the P133C code to appear?
Common causes include a faulty glow plug in cylinder 5, damaged glow plug wiring, a malfunctioning glow plug control module, or carbon buildup affecting the glow plug's operation.
Can I drive my 2016 GMC Sierra with a P133C code?
While the vehicle may still be drivable, ignoring this code can lead to cold-start issues and further engine problems, especially in colder climates.
How do I diagnose the P133C code?
Diagnosis typically involves inspecting the glow plug in cylinder 5, testing its resistance, checking the wiring and connections, and scanning for additional codes.
How do I fix the P133C code on my GMC Sierra?
Repairs may include replacing the glow plug in cylinder 5, repairing damaged wiring or connectors, or replacing the glow plug control module if necessary.
What tools are needed to troubleshoot a P133C code?
You’ll need a diagnostic scan tool, a multimeter to test electrical resistance, and basic hand tools to access and inspect the glow plug and wiring.
How much does it cost to fix a P133C code?
The cost varies but typically ranges from $50 to $150 for a glow plug replacement, plus labor costs if done by a mechanic.
Can cold weather trigger the P133C code?
Yes, cold weather can exacerbate glow plug issues, making it more likely for the P133C code to appear if the plug is already faulty.
Do I need to clear the code after repairs?
Yes, you should clear the code with a diagnostic scan tool after completing repairs and test drive the vehicle to ensure the issue is resolved.
Discuss the causes and fixes for P133C 2016 GMC Sierra OBDII Code
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