AutoCodes – Saab – P1641 Saab

P1641 Saab Code - Fuel Pump Relay No Voltage To Fuel Pump / Oxygen Sensor Heater

Quick Answer

P1641 Saab indicates Fuel Pump Relay No Voltage To Fuel Pump / Oxygen Sensor Heater. 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: P1641 Saab indicates Fuel Pump Relay No Voltage To Fuel Pump / Oxygen Sensor Heater.
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 4,791

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 04, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1641 Saab Description

OBDII Code P1641 Saab - Fuel Pump Relay No Voltage To Fuel Pump / Oxygen Sensor Heater - AutoCodes.com — P1641 Saab Code - Fuel Pump Relay No Voltage To Fuel Pump / Oxygen Sensor Heater

What does this mean?

What are the Possible Causes of the DTC P1641 Saab?

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

How to Fix the DTC P1641 Saab?

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 P1641 Saab 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 P1641 Saab code?

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Get the P1641 Saab 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 P1641 Saab Code

1. What are common symptoms of OBDII code P1641 in a Saab?

- Common symptoms include the fuel pump not priming when the ignition is turned on, the vehicle stalling unexpectedly, and the check engine light illuminating.

2. What are the possible causes of OBDII code P1641 in a Saab?

- Possible causes include a faulty fuel pump relay, a malfunctioning fuel pump, damaged wiring or connectors in the fuel pump circuit, or issues with the oxygen sensor heater circuit.

3. How can I diagnose the root cause of OBDII code P1641 in my Saab?

- To diagnose the issue, you can use a multimeter to check for voltage at the fuel pump relay, inspect the fuel pump and its wiring for any damage, and test the oxygen sensor heater circuit for proper functionality.

4. Can a DIY enthusiast repair OBDII code P1641 in a Saab?

- Yes, some DIY enthusiasts may be able to repair this code by replacing the fuel pump relay, fixing damaged wiring, or addressing issues with the oxygen sensor heater circuit. However, professional assistance may be necessary for more complex issues.

5. Is it safe to continue driving with OBDII code P1641 present in a Saab?

- It is not recommended to continue driving with this code present, as it can lead to issues like stalling and potentially unsafe driving conditions. It's best to address the underlying problem promptly.

6. What are some tips for preventing OBDII code P1641 in a Saab?

- Regularly inspecting the fuel pump relay, maintaining the fuel pump system, and ensuring proper care of the oxygen sensor can help prevent this code from appearing.

7. How much does it typically cost to repair OBDII code P1641 in a Saab?

- The cost of repair can vary depending on the root cause of the issue. Simple fixes like replacing a relay may be relatively inexpensive, while more complex problems could require more extensive repairs and therefore cost more.

8. Can a faulty oxygen sensor cause OBDII code P1641 in a Saab?

- Yes, a faulty oxygen sensor can contribute to the triggering of this code, as it may affect the overall operation of the fuel pump and the fuel system in the vehicle.

9. Will resetting the OBDII code P1641 in a Saab make it go away permanently?

- Resetting the code may temporarily turn off the check engine light, but if the underlying issue is not addressed, the code is likely to reappear. It's important to diagnose and fix the root cause of the problem.

10. How long does it usually take to repair OBDII code P1641 in a Saab?

- The repair time can vary depending on the specific cause of the code and the expertise of the person performing the repair. Simple fixes may take a short amount of time, while more complex issues could require more extensive work and therefore more time.