AutoCodes – Suzuki – P1231 Suzuki

P1231 Suzuki Code - Fuel Pump Relay High Voltage

Quick Answer

P1231 Suzuki indicates Fuel Pump Relay High Voltage. Common causes include Faulty Fuel Pump Relay, Fuel Pump Relay harness is open or shorted, Fuel Pump Relay 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: P1231 Suzuki indicates Fuel Pump Relay High Voltage.
Common causes: Common causes include Faulty Fuel Pump Relay, Fuel Pump Relay harness is open or shorted, Fuel Pump Relay 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 2,094

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 Jul 20, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1231 Suzuki Description

OBDII Code P1231 Suzuki - Fuel Pump Relay High Voltage - AutoCodes.com — P1231 Suzuki Code - Fuel Pump Relay High Voltage

What does this mean?

What are the Possible Causes of the DTC P1231 Suzuki?

Faulty Fuel Pump Relay
Fuel Pump Relay harness is open or shorted
Fuel Pump Relay circuit poor electrical connection

How to Fix the DTC P1231 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 P1231 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 P1231 Suzuki code?

Need more information on how to fix the P1231 Suzuki code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1231 Suzuki 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 P1231 Suzuki Code

1. What are the common symptoms of OBDII code P1231 in a Suzuki related to the Fuel Pump Relay High Voltage issue?

- Common symptoms include difficulty starting the vehicle, engine stalling, or the fuel pump running continuously after shutting off the engine.

2. What could be the possible causes of OBDII code P1231 in a Suzuki indicating a Fuel Pump Relay High Voltage problem?

- The code may be triggered by a faulty fuel pump relay, a short circuit in the fuel pump circuit, or a problem with the fuel pump control module.

3. How can a driver diagnose the OBDII code P1231 in a Suzuki related to the Fuel Pump Relay High Voltage issue?

- A driver can use an OBDII scanner to read the code, inspect the fuel pump relay for signs of damage or corrosion, and test the fuel pump circuit for continuity.

4. Is it safe to continue driving with OBDII code P1231 indicating a Fuel Pump Relay High Voltage problem in a Suzuki?

- It is not recommended to drive the vehicle with this code active, as it can lead to potential fuel pump failure or other related issues that may cause the vehicle to stall unexpectedly.

5. What are the repair options for fixing OBDII code P1231 related to the Fuel Pump Relay High Voltage issue in a Suzuki?

- Repair options include replacing the faulty fuel pump relay, repairing any damaged wiring in the fuel pump circuit, or addressing any issues with the fuel pump control module.

6. Can a DIY enthusiast fix OBDII code P1231 in a Suzuki themselves?

- Depending on their skill level and access to tools, a DIY enthusiast may be able to replace the fuel pump relay or inspect the wiring, but more complex repairs may require professional assistance.

7. How much does it typically cost to repair OBDII code P1231 in a Suzuki related to the Fuel Pump Relay High Voltage issue?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

8. Are there any preventive measures to avoid triggering OBDII code P1231 in a Suzuki due to a Fuel Pump Relay High Voltage problem?

- Regularly inspecting and maintaining the fuel pump relay, checking for signs of wear or corrosion, and addressing any electrical issues promptly can help prevent this code from appearing.

9. Can a faulty fuel pump itself trigger OBDII code P1231 in a Suzuki?

- While a faulty fuel pump can cause related issues, the code P1231 specifically points to a high voltage condition in the fuel pump relay circuit rather than a direct problem with the fuel pump itself.

10. How urgent is it to address OBDII code P1231 indicating a Fuel Pump Relay High Voltage issue in a Suzuki?

- It is recommended to address this issue promptly to avoid potential fuel delivery problems, engine stalling, or other issues that can arise from a malfunctioning fuel pump relay.