AutoCodes – Chevrolet – P133D 2015 Chevrolet Silverado

P133D 2015 Chevrolet Silverado Code - Cylinder 6 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 6, Glow Plug 6 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: P133D 2015 Chevrolet Silverado indicates Cylinder 6 Glow Plug Offset Exceeded Learning Limit.
Common causes: Common causes include Perform Glow Plug Learn procedure, Faulty Glow Plug 6, Glow Plug 6 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 237

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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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 P133D 2015 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 P133D 2015 Chevrolet Silverado - Cylinder 6 Glow Plug Offset Exceeded Learning Limit - AutoCodes.com — P133D 2015 Chevrolet Silverado Code - Cylinder 6 Glow Plug Offset Exceeded Learning Limit

What does this mean?

What are the Possible Causes of the DTC P133D 2015 Chevrolet Silverado?

Perform Glow Plug Learn procedure
Faulty Glow Plug 6
Glow Plug 6 harness is open or shorted
Glow Plug 6 circuit poor electrical connection

How to Fix the DTC P133D 2015 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 P133D 2015 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 P133D 2015 Chevrolet Silverado code?

Need more information on how to fix the P133D 2015 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

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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 P133D 2015 Chevrolet Silverado Code

What does the OBDII code P133D mean for a 2015 Chevrolet Silverado?

The P133D code indicates that the Cylinder 6 glow plug offset has exceeded its learning limit, suggesting an issue with the glow plug system or its calibration.

What are the symptoms of the P133D code in a 2015 Silverado?

Symptoms may include difficulty starting in cold weather, reduced engine performance, a check engine light, and potential rough idling.

What causes the P133D code to appear?

Common causes include a faulty glow plug, wiring or connector issues, a malfunctioning glow plug control module, or improper calibration of the glow plug offset.

Is it safe to drive a 2015 Silverado with the P133D code?

While the truck may still run, driving with this code can lead to poor performance and starting issues, especially in cold weather, and should be addressed promptly.

How can I diagnose the P133D code?

Diagnosis involves checking the glow plug and its wiring for damage, testing the glow plug control module, and using a scan tool to verify the offset calibration for Cylinder 6.

Can a faulty glow plug cause the P133D code?

Yes, a faulty glow plug in Cylinder 6 is one of the most common causes of this code.

How do I fix the P133D code on my 2015 Silverado?

Repairs may include replacing the Cylinder 6 glow plug, repairing wiring or connectors, updating the control module software, or recalibrating the system.

How much does it cost to repair the P133D code?

Costs vary depending on the issue, but replacing a glow plug typically costs $100-$300, including parts and labor. Additional repairs may increase the price.

Can the P133D code trigger other issues?

Yes, unresolved glow plug issues can lead to starting problems, reduced fuel efficiency, and potential damage to the engine over time.

Does the P133D code require professional repair?

While some experienced DIYers can handle glow plug replacement, diagnosing and recalibrating the system may require specialized tools and expertise, making professional repair advisable.