AutoCodes – Chevrolet – P0700 2018 Chevrolet Silverado

P0700 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado 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.

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Code Popularity 1,928

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
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Code P0700 2018 Chevrolet Silverado 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 2018 Chevrolet Silverado - Transmission Control Module Requested MIL Illumination - AutoCodes.com — P0700 2018 Chevrolet Silverado Code - Transmission Control Module Requested MIL Illumination

What does this mean?

What are the Possible Causes of the DTC P0700 2018 Chevrolet Silverado?

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

How to Fix the DTC P0700 2018 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

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 2018 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 P0700 2018 Chevrolet Silverado code?

Need more information on how to fix the P0700 2018 Chevrolet Silverado code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0700 2018 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 P0700 2018 Chevrolet Silverado Code

1. What does the OBDII code P0700 mean on a 2018 Chevrolet Silverado?

The P0700 code indicates a Transmission Control Module (TCM) Request for MIL (Malfunction Indicator Lamp) Illumination on the 2018 Chevrolet Silverado.

2. What are common symptoms associated with the P0700 code on a 2018 Chevrolet Silverado?

Common symptoms include the check engine light coming on, transmission shifting issues, harsh shifting, and decreased fuel efficiency.

3. What are possible causes of the P0700 code on a 2018 Chevrolet Silverado?

Possible causes include faulty transmission control module, wiring issues, sensor problems, internal transmission faults, or software issues.

4. How can I diagnose the P0700 code on my 2018 Chevrolet Silverado?

Diagnosing the P0700 code typically involves using a diagnostic scanner to retrieve specific transmission trouble codes, checking the transmission fluid level and condition, and inspecting the transmission control module and related components.

5. Can I continue driving my 2018 Chevrolet Silverado with the P0700 code present?

It is not recommended to continue driving with the P0700 code present, as it can lead to further transmission damage and potential safety risks. It's best to have the issue diagnosed and repaired promptly.

6. How can I repair the P0700 code on my 2018 Chevrolet Silverado?

Repairing the P0700 code may involve replacing the transmission control module, repairing or replacing damaged wiring, addressing sensor issues, or performing a transmission fluid flush and filter replacement.

7. Is it necessary to reset the OBDII code P0700 after repairing the issue on a 2018 Chevrolet Silverado?

Yes, it is recommended to clear the P0700 code after repairing the underlying issue to reset the check engine light and ensure proper functioning of the vehicle's systems.

8. Can a DIY enthusiast fix the P0700 code on a 2018 Chevrolet Silverado?

While some basic troubleshooting steps can be performed by a DIY enthusiast, diagnosing and repairing the P0700 code may require specialized tools and expertise. It's advisable to consult a professional mechanic for proper diagnosis and repair.

9. How much does it cost to repair the P0700 code on a 2018 Chevrolet Silverado?

The cost of repairing the P0700 code can vary depending on the specific cause of the issue, parts needed for repair, and labor rates. It is recommended to obtain a diagnosis and repair estimate from a qualified mechanic.

10. How can I prevent the P0700 code from reoccurring on my 2018 Chevrolet Silverado?

Regular maintenance, such as checking and changing transmission fluid as recommended, addressing any transmission issues promptly, and driving responsibly, can help prevent the recurrence of the P0700 code on your 2018 Chevrolet Silverado.