AutoCodes – Suzuki – P1631 Suzuki

P1631 Suzuki Code - Theft Deterrent Fuel Enable Signal Not Correct

Quick Answer

P1631 Suzuki indicates Theft Deterrent Fuel Enable Signal Not Correct. Common causes include Theft Deterent Module harness is open or shorted, Theft Deterent Module circuit poor electrical connection, Faulty Theft Deterent Module (TDM). 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: P1631 Suzuki indicates Theft Deterrent Fuel Enable Signal Not Correct.
Common causes: Common causes include Theft Deterent Module harness is open or shorted, Theft Deterent Module circuit poor electrical connection, Faulty Theft Deterent Module (TDM).
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 4,205

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 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1631 Suzuki Description

OBDII Code P1631 Suzuki - Theft Deterrent Fuel Enable Signal Not Correct - AutoCodes.com — P1631 Suzuki Code - Theft Deterrent Fuel Enable Signal Not Correct

What does this mean?

What are the Possible Causes of the DTC P1631 Suzuki?

Theft Deterent Module harness is open or shorted
Theft Deterent Module circuit poor electrical connection
Faulty Theft Deterent Module (TDM)
Faulty Engine Control Module (ECM)

How to Fix the DTC P1631 Suzuki?

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 P1631 Suzuki 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 P1631 Suzuki 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 P1631 Suzuki Code

What does OBDII code P1631 mean for a Suzuki vehicle?

OBDII code P1631 indicates that the theft deterrent system is not sending the correct fuel enable signal, which may prevent the engine from starting.

What symptoms might I experience with code P1631?

Common symptoms include difficulty starting the engine, the engine stalling, or the engine not running at all.

What could cause the P1631 code to trigger?

Possible causes include a malfunctioning theft deterrent module, an issue with wiring or connectors, or a problem with the engine control module (ECM).

Can a dead battery trigger the P1631 code?

Yes, a dead or weak battery can cause issues with the theft deterrent system, potentially leading to the P1631 code being set.

How can I diagnose the P1631 code?

Start by checking the vehicle's battery and connections, then inspect the wiring and connectors associated with the theft deterrent system. Use a diagnostic scanner to clear the code and see if it returns.

What are some common repairs for code P1631?

Repairs may involve replacing the theft deterrent module, repairing faulty wiring, or reprogramming the ECM if it's not communicating correctly with the theft deterrent system.

Is it safe to drive a vehicle with code P1631?

It is generally not safe to drive a vehicle with this code, as it may prevent the engine from starting or cause it to stall unexpectedly.

Could a key fob issue relate to code P1631?

Yes, a malfunctioning key fob or an incorrect key can interfere with the theft deterrent system, leading to the P1631 code.

How can I prevent the P1631 code from returning?

Regularly maintain the battery and electrical connections, ensure the key fob is functioning properly, and address any issues in the theft deterrent system promptly.