AutoCodes – Chevrolet – P133C 2017 Chevrolet Silverado

P133C 2017 Chevrolet Silverado 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 2017 Chevrolet Silverado 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.

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Code Popularity 304

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Sep 30, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P133C 2017 Chevrolet Silverado Description

The Glow Plug Control Module has not learned the glow plug offset values. If a glow plug has been replaced and the glow plug learn was not performed, or if the Glow Plug Control Module experiences an Electronically Erasable Programmable Read Only Memory (EEPROM) error or data corruption, this Diagnostic Trouble Code (DTC) to set. The DTC will be set if the glow plug hot resistance is outside a predefined threshold.

OBDII Code P133C 2017 Chevrolet Silverado - Cylinder 5 Glow Plug Offset Exceeded Learning Limit - AutoCodes.com — P133C 2017 Chevrolet Silverado Code - Cylinder 5 Glow Plug Offset Exceeded Learning Limit

What does this mean?

What are the Possible Causes of the DTC P133C 2017 Chevrolet Silverado?

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 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 does this mean?

Code Tech Notes

If a Glow Plug was replaced, perform a Glow Plug Learn procedure with a Scan Tool.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P133C 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.

Need more information about the P133C 2017 Chevrolet Silverado code?

Need more information on how to fix the P133C 2017 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P133C 2017 Chevrolet Silverado code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P133C 2017 Chevrolet Silverado Code

1. What does OBDII code P133C mean on a 2017 Chevrolet Silverado?

Code P133C indicates that the cylinder 5 glow plug offset has exceeded the learning limit, which typically relates to an issue with the glow plug or its control circuit.

2. What are the symptoms of code P133C in a 2017 Chevrolet Silverado?

Common symptoms include hard starting in cold weather, rough idling, reduced engine performance, and the illumination of the check engine light.

3. What causes the P133C code to appear?

The most common causes are a faulty glow plug in cylinder 5, poor electrical connections in the glow plug circuit, or a malfunctioning glow plug control module.

4. How is the P133C code diagnosed?

A technician will use a scan tool to confirm the code, inspect the glow plug and its wiring for damage or corrosion, and test the glow plug resistance to ensure it is within specifications.

5. Can you drive a 2017 Chevrolet Silverado with a P133C code?

While the vehicle may still be drivable, ignoring the issue can lead to worsened starting problems, reduced engine efficiency, and potential damage to other components.

6. What is the cost to repair the P133C code?

Repair costs vary, but replacing a glow plug typically ranges from $100 to $300, depending on labor rates and parts pricing.

7. Can a P133C code be caused by a software issue?

In some cases, a PCM (Powertrain Control Module) software update might be required if the issue is not resolved after replacing the glow plug and inspecting the circuit.

8. How do you prevent the P133C code from recurring?

Regular maintenance, such as inspecting glow plugs and ensuring connections are clean and secure, can help prevent this code from reappearing.

9. How long does it take to fix a P133C code?

Repairs usually take 1-2 hours, depending on whether the glow plug replacement is straightforward or if additional diagnostics are needed.

10. What happens if the P133C code is ignored?

Over time, ignoring this code can cause difficulty starting the engine in cold weather, reduced fuel efficiency, and potential damage to the glow plug system or engine components.