AutoCodes – Saab – P1658 Saab

P1658 Saab Code - Turbocharger Bypass Valve Open Circuit / Short To Ground

Quick Answer

P1658 Saab indicates Turbocharger Bypass Valve Open Circuit / Short To Ground. Common causes include Faulty Turbocharger Bypass Valve, Turbocharger Bypass Valve harness is open or shorted, Turbocharger Bypass Valve 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: P1658 Saab indicates Turbocharger Bypass Valve Open Circuit / Short To Ground.
Common causes: Common causes include Faulty Turbocharger Bypass Valve, Turbocharger Bypass Valve harness is open or shorted, Turbocharger Bypass Valve 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 4,846

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 06, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1658 Saab Description

OBDII Code P1658 Saab - Turbocharger Bypass Valve Open Circuit / Short To Ground - AutoCodes.com — P1658 Saab Code - Turbocharger Bypass Valve Open Circuit / Short To Ground

What does this mean?

What are the Possible Causes of the DTC P1658 Saab?

Faulty Turbocharger Bypass Valve
Turbocharger Bypass Valve harness is open or shorted
Turbocharger Bypass Valve circuit poor electrical connection

How to Fix the DTC P1658 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 P1658 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 P1658 Saab code?

Need more information on how to fix the P1658 Saab code? Get Access to Factory Service Manuals

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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 P1658 Saab Code

1. What are common symptoms of OBDII code P1658 in a Saab related to the turbocharger bypass valve?

The common symptoms include reduced engine power, rough idle, stalling, and potentially an illuminated check engine light.

2. What can cause the OBDII code P1658 "Turbocharger Bypass Valve Open Circuit / Short To Ground" in a Saab?

Potential causes include a faulty turbocharger bypass valve, damaged wiring or connectors, or a short circuit in the bypass valve circuit.

3. How can I diagnose the issue behind OBDII code P1658 in my Saab?

Diagnosing the issue involves inspecting the turbocharger bypass valve, checking the wiring and connectors for damage, and using a multimeter to test for continuity and shorts in the circuit.

4. Can I still drive my Saab with OBDII code P1658 present?

It is not recommended to drive your Saab with this code present, as it can lead to further damage to the turbocharger system and potentially cause engine issues.

5. How can I repair OBDII code P1658 in my Saab?

Repairing the issue involves replacing the faulty turbocharger bypass valve, repairing any damaged wiring or connectors, and clearing the code with an OBDII scanner.

6. Are there any tips to prevent OBDII code P1658 from reoccurring in my Saab?

Regularly inspecting the turbocharger system for any signs of wear or damage, ensuring proper maintenance of the bypass valve, and addressing any issues promptly can help prevent the code from reoccurring.

7. Can a DIY enthusiast fix OBDII code P1658 in a Saab?

Depending on your skills and experience with automotive repairs, it is possible to fix this issue yourself by following the proper diagnostic and repair procedures outlined in the vehicle's service manual.

8. How much does it typically cost to repair OBDII code P1658 in a Saab at a professional mechanic?

The cost of repairing this issue can vary depending on the extent of the damage, the cost of parts, and labor rates in your area. It is advisable to get estimates from different mechanics to find the best deal.

9. Will resetting the OBDII code P1658 in my Saab make the problem go away permanently?

Simply resetting the code without addressing the underlying issue will not solve the problem permanently. It is essential to diagnose and repair the root cause to prevent the code from reoccurring.

10. Is OBDII code P1658 specific to Saab vehicles, or can it occur in other car makes and models?

While this particular code is related to Saab vehicles, similar issues with the turbocharger bypass valve circuit can occur in other car makes and models as well.