AutoCodes – Nissan – P0603 2008 Nissan Rogue

P0603 2008 Nissan Rogue Code - Engine Control Module Power Supply Circuit

Quick Answer

Battery voltage is supplied to the Engine Control Module (ECM) even when the ignition switch is turned OFF for the ECM memory function of the DTC memory, the air-fuel ratio feedback compensation value memory, the idle air volume learning value memory, etc. Common causes include Loose or poor battery terminal connection, Low battery charge, Faulty Engine Control Module (ECM). 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 2008 Nissan Rogue indicates Engine Control Module Power Supply Circuit.
Common causes: Common causes include Loose or poor battery terminal connection, Low battery charge, Faulty Engine Control Module (ECM).
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 6,930

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 Jun 14, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0603 2008 Nissan Rogue Description

OBDII Code P0603 2008 Nissan Rogue - Engine Control Module Power Supply Circuit - AutoCodes.com — P0603 2008 Nissan Rogue Code - Engine Control Module Power Supply Circuit

What does this mean?

What are the Possible Causes of the DTC P0603 2008 Nissan Rogue?

Loose or poor battery terminal connection
Low battery charge
Faulty Engine Control Module (ECM)
ECM power supply circuit is open or shorted
ECM Outdated Program

How to Fix the DTC P0603 2008 Nissan Rogue?

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 does this mean?

Code Tech Notes

Start by charging the vehicles battery and clean terminal, once the battery is charged and the terminals are clean and secure, erase code. If the code comes back ON you may have to reprogram or replaced ECM

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0603 2008 Nissan Rogue 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 2008 Nissan Rogue code?

Need more information on how to fix the P0603 2008 Nissan Rogue code? Get Access to Factory Service Manuals

Need Help with the 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 P0603 2008 Nissan Rogue Code

What does the OBDII code P0603 mean for a 2008 Nissan Rogue?

The OBDII code P0603 indicates a malfunction in the Engine Control Module (ECM) power supply circuit, meaning that the ECM has detected an internal fault related to its power supply.

What are the common symptoms of the P0603 code?

Common symptoms include poor engine performance, stalling, difficulty starting the vehicle, and the check engine light being illuminated.

What could cause the P0603 code to trigger in a 2008 Nissan Rogue?

Potential causes include a faulty ECM, poor electrical connections or wiring to the ECM, blown fuses, or issues with the vehicle's power supply.

How can I diagnose the P0603 code?

To diagnose the P0603 code, check for any additional trouble codes, inspect the ECM's wiring and connectors for damage, test the battery voltage, and verify that all fuses related to the ECM are intact.

What repairs are typically needed to fix the P0603 code?

Repairs may include repairing or replacing damaged wiring, connectors, or fuses, or replacing the ECM if it is found to be faulty.

Can I drive my 2008 Nissan Rogue with the P0603 code?

While it may be possible to drive with the P0603 code, it is not recommended as it can lead to poor engine performance and potential further damage to the vehicleâ€™s systems.

How much does it typically cost to repair the P0603 code?

Repair costs can vary widely depending on the cause of the code, but replacing an ECM can range from $500 to $1500, including parts and labor.

Is it safe to reset the check engine light after getting the P0603 code?

Resetting the check engine light may temporarily clear the code, but it is important to diagnose and fix the underlying issue to prevent reoccurrence.

What tools do I need to troubleshoot the P0603 code?

To troubleshoot the P0603 code, you will need an OBDII scanner, a multimeter for checking electrical connections, and basic hand tools for inspecting and repairing the wiring.