AutoCodes – Saab – P0603 Saab

P0603 Saab Code - Control Module Long Term Memory Reset

Quick Answer

This Diagnostic Trouble Code (DTC) applies to internal microprocessor integrity conditions within the Engine Control Module (ECM). Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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: P0603 Saab indicates Control Module Long Term Memory Reset.
Common causes: Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 704

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 May 01, 2021

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0603 Saab Description

This Diagnostic Trouble Code (DTC) applies to internal microprocessor integrity conditions within the Engine Control Module (ECM). This diagnostic also addresses whether or not the ECM is not programmed.

OBDII Code P0603 Saab - Control Module Long Term Memory Reset - AutoCodes.com — P0603 Saab Code - Control Module Long Term Memory Reset

What does this mean?

What are the Possible Causes of the DTC P0603 Saab?

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

How to Fix the DTC P0603 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 P0603 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 P0603 Saab code?

Need more information on how to fix the P0603 Saab code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0603 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 P0603 Saab Code

1. What is OBDII code P0603 related to Control Module Long Term Memory Reset in a Saab?

- OBDII code P0603 indicates that the Engine Control Module (ECM) has lost its long-term memory settings.

2. What are common symptoms of a P0603 code in a Saab?

- Common symptoms include poor engine performance, misfiring, stalling, and potential difficulty starting the vehicle.

3. What are the possible causes of a P0603 code in a Saab?

- Causes can include a faulty ECM, a software error, a power supply issue, or wiring problems.

4. How can I diagnose a P0603 code in my Saab?

- Diagnosing a P0603 code typically involves checking for other related fault codes, inspecting the ECM and its connections, and testing the power supply to the ECM.

5. Can a P0603 code be repaired without professional help?

- Repairing a P0603 code may require advanced diagnostic tools and knowledge, so it is recommended to seek professional help for an accurate diagnosis and repair.

6. Is it safe to continue driving with a P0603 code in my Saab?

- It is not recommended to continue driving with a P0603 code, as it can lead to further damage to the engine and other components.

7. How much does it cost to repair a P0603 code in a Saab?

- The cost of repairing a P0603 code can vary depending on the root cause of the issue, but it may involve replacing the ECM or addressing wiring problems, which can be costly.

8. Can a P0603 code be intermittent in a Saab?

- Yes, a P0603 code can sometimes be intermittent, appearing and disappearing sporadically. This can make diagnosis more challenging.

9. Will disconnecting the battery reset the P0603 code in a Saab?

- Disconnecting the battery may temporarily clear the code, but it is not a recommended long-term solution as the underlying issue causing the code will persist.

10. How can I prevent a P0603 code from reoccurring in my Saab?

- To prevent a P0603 code from reoccurring, ensure regular maintenance of your vehicle, address any power supply issues promptly, and follow recommended service schedules for your Saab.