AutoCodes – GMC – P133D 2017 GMC Sierra

P133D 2017 GMC Sierra 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 2017 GMC Sierra 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 208

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 P133D 2017 GMC Sierra 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 2017 GMC Sierra - Cylinder 6 Glow Plug Offset Exceeded Learning Limit - AutoCodes.com — P133D 2017 GMC Sierra Code - Cylinder 6 Glow Plug Offset Exceeded Learning Limit

What does this mean?

What are the Possible Causes of the DTC P133D 2017 GMC Sierra?

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 2017 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.

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 2017 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.

Need more information about the P133D 2017 GMC Sierra code?

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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 2017 GMC Sierra Code

1. What does the OBDII code P133D mean on a 2017 GMC Sierra?

P133D indicates that the offset for the glow plug in cylinder 6 has exceeded the learning limit, meaning the glow plug system is not behaving as expected during self-diagnostics.

2. What are the common symptoms of code P133D on a 2017 GMC Sierra?

Common symptoms include difficulty starting the engine in cold weather, a check engine light, reduced fuel efficiency, and possible misfires in cylinder 6.

3. What causes the P133D code to appear on my GMC Sierra?

Causes may include a faulty glow plug in cylinder 6, an issue with the glow plug control module, corroded or damaged wiring, or incorrect calibration of the control system.

4. Can I drive with the P133D code on my 2017 GMC Sierra?

While the truck may still run, prolonged driving with this code could lead to starting issues in cold conditions and potential damage to the engine due to inefficient combustion.

5. How do I fix the P133D code on a GMC Sierra?

Common fixes include replacing the faulty glow plug in cylinder 6, repairing or replacing damaged wiring, and reprogramming or recalibrating the glow plug control module if necessary.

6. How do I test the glow plug in cylinder 6 for the P133D code?

You can test the glow plug with a multimeter to check for continuity and resistance. A faulty glow plug will typically show no continuity or resistance out of the normal range (usually 0.5-2 ohms).

7. Is a faulty glow plug control module a possible cause of the P133D code?

Yes, a malfunctioning glow plug control module can send incorrect signals to the glow plugs, causing the offset limit to be exceeded.

8. Can a software update fix the P133D code on a 2017 GMC Sierra?

In some cases, a software update from the dealership may recalibrate the glow plug system and resolve the issue if no hardware faults are detected.

9. What tools do I need to diagnose the P133D code?

Youâ€™ll need an OBDII scanner, a multimeter, and possibly a diagnostic tool capable of testing the glow plug system and control module.

10. How much does it typically cost to repair a P133D code?

The cost can range from $50 to $200 for a single glow plug replacement, while more extensive repairs like control module replacement or wiring repairs can cost $300-$600 depending on labor and parts.