AutoCodes – GMC – P0700 2017 GMC Sierra

P0700 2017 GMC Sierra Code - Transmission Control Module Requested MIL Illumination

Quick Answer

The Transmission Control Module (TCM) monitors the malfunction of sensors and actuators relating to transmission control. Common causes include Check Transmission Control Module (TCM) for codes, Faulty Transmission Control Module. 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: P0700 2017 GMC Sierra indicates Transmission Control Module Requested MIL Illumination.
Common causes: Common causes include Check Transmission Control Module (TCM) for codes, Faulty Transmission Control Module.
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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 648

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 May 07, 2024

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0700 2017 GMC Sierra Description

The Transmission Control Module (TCM) monitors the malfunction of sensors and actuators relating to transmission control. When the TCM detects a malfunction with the control, a signal is sent to the Engine Control Module (ECM) to trigger the Engine Light or Service Engine Soon light. The ECM stores the P0700 code, and it means the TCM detected a malfunction with the transmission controls.

OBDII Code P0700 2017 GMC Sierra - Transmission Control Module Requested MIL Illumination - AutoCodes.com — P0700 2017 GMC Sierra Code - Transmission Control Module Requested MIL Illumination

What does this mean?

What are the Possible Causes of the DTC P0700 2017 GMC Sierra?

Check Transmission Control Module (TCM) for codes
Faulty Transmission Control Module

How to Fix the DTC P0700 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

The P0700 code is a generic Diagnostic Trouble Code (DTC) used in OBDII systems to indicate a problem with the transmission control system. It typically means that there are additional specific transmission-related trouble codes stored in the Transmission Control Module (TCM) that need to be retrieved to diagnose the issue further.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0700 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 P0700 2017 GMC Sierra code?

Need more information on how to fix the P0700 2017 GMC Sierra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0700 2017 GMC Sierra 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 P0700 2017 GMC Sierra Code

1. What does OBDII code P0700 mean for a 2017 GMC Sierra?

The P0700 code indicates a problem with the Transmission Control Module (TCM) requesting the Malfunction Indicator Lamp (MIL) to be illuminated.

2. What are common symptoms of OBDII code P0700 in a 2017 GMC Sierra?

Common symptoms include the check engine light coming on, transmission shifting issues, decreased fuel efficiency, and potential stalling or hesitation.

3. What are the possible causes of OBDII code P0700 in a 2017 GMC Sierra?

Potential causes include a malfunctioning TCM, wiring or connection issues, low transmission fluid levels, faulty sensors, or internal transmission problems.

4. How can I diagnose OBDII code P0700 in my 2017 GMC Sierra?

Diagnosing P0700 may require a scan tool to retrieve additional transmission-related trouble codes for a more accurate diagnosis. Checking the transmission fluid level and inspecting the TCM and related components are also recommended.

5. Can I continue driving my 2017 GMC Sierra with OBDII code P0700?

It is not recommended to ignore the P0700 code and continue driving, as it can lead to further transmission damage. It is advisable to have the issue diagnosed and repaired promptly.

6. How can I repair OBDII code P0700 in my 2017 GMC Sierra?

Repairing P0700 may involve addressing the underlying cause, which could range from replacing a faulty TCM or sensor to repairing wiring issues or performing transmission repairs. A qualified mechanic should perform the necessary repairs.

7. Are there any DIY tips for resolving OBDII code P0700 in a 2017 GMC Sierra?

While basic checks like ensuring the transmission fluid level is adequate and connections are secure can be done DIY, diagnosing and repairing specific issues related to the TCM and transmission may require professional expertise.

8. How much does it typically cost to repair OBDII code P0700 in a 2017 GMC Sierra?

The cost of repairing P0700 can vary significantly depending on the specific cause of the issue. Costs may include parts, labor, and diagnostic fees, so it's best to obtain a quote from a trusted mechanic.

9. Can clearing the OBDII code P0700 in my 2017 GMC Sierra make it go away permanently?

Clearing the code without addressing the underlying issue will not resolve the problem permanently. The code is likely to return until the root cause is diagnosed and repaired.

10. Is OBDII code P0700 a common issue in 2017 GMC Sierra vehicles?

While not uncommon, the P0700 code in a 2017 GMC Sierra can be indicative of various transmission-related issues. Regular maintenance and prompt attention to any warning lights can help prevent or address such problems.