AutoCodes – Buick – P1701 Buick

P1701 Buick Code - Transmission MIL Request Circuit

Quick Answer

With the key on, the Powertrain Control Module (PCM) detects a short to ground, open circuit or a short to power in the Mil Request circuit for 2.5 seconds Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) circuit poor electrical connection. 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: P1701 Buick indicates Transmission MIL Request Circuit.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) circuit poor electrical connection.
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 4,699

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 10, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1701 Buick Description

With the key on, the Powertrain Control Module (PCM) detects a short to ground, open circuit or a short to power in the Mil Request circuit for 2.5 seconds

OBDII Code P1701 Buick - Transmission MIL Request Circuit - AutoCodes.com — P1701 Buick Code - Transmission MIL Request Circuit

What does this mean?

What are the Possible Causes of the DTC P1701 Buick?

Faulty Transmission Control Module (TCM)
Transmission Control Module (TCM) harness is open or shorted
Transmission Control Module (TCM) circuit poor electrical connection

How to Fix the DTC P1701 Buick?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1701 Buick 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 P1701 Buick code?

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Need Help with the Code?

Get the P1701 Buick 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 P1701 Buick Code

1. What does the OBDII code P1701 mean on a Buick?

P1701 indicates a problem with the Transmission MIL (Malfunction Indicator Lamp) Request Circuit, which is responsible for signaling a transmission fault to the vehicle’s engine control module (ECM).

2. What are common symptoms of the P1701 code in a Buick?

Symptoms may include the check engine light or transmission warning light illuminating, erratic shifting, transmission performance issues, or the vehicle entering "limp mode."

3. What causes the P1701 code to appear on a Buick?

Common causes include a faulty transmission control module (TCM), wiring or connector issues in the transmission MIL circuit, or a malfunctioning ECM.

4. Can I continue driving my Buick with a P1701 code?

You may be able to drive the vehicle, but continuing to do so can lead to further transmission damage or reduced performance. It's best to address the issue promptly.

5. How do I diagnose the P1701 code on my Buick?

Diagnosis involves using an OBDII scanner to confirm the code, visually inspecting the wiring and connectors in the MIL circuit, and testing the TCM and ECM for proper operation.

6. What repairs can fix a P1701 code on a Buick?

Repairs may include fixing or replacing damaged wiring, repairing corroded or loose connectors, reprogramming or replacing the TCM, or addressing ECM-related issues.

7. How much does it cost to fix a P1701 code on a Buick?

Repair costs vary based on the cause, but fixing wiring or connectors typically costs less than replacing the TCM or ECM, which could range from $300 to $1,200 or more.

8. Can a weak battery cause the P1701 code on a Buick?

A weak or failing battery can sometimes cause electrical issues, including this code. Ensure your battery and charging system are in good condition.

9. Does the P1701 code mean my transmission is failing?

Not necessarily. The code indicates an issue with the communication circuit, not necessarily the transmission itself, though transmission issues could trigger this fault.

10. Can a software update resolve the P1701 code on a Buick?

In some cases, a software update for the ECM or TCM may resolve the issue, especially if the code is related to a known bug in the vehicle’s software.