P0605 2009 Nissan Altima Sedan Code - Engine Control Module Fault
Quick Answer
The Engine Control Module (ECM) continuously monitors its own internal memory status, internal circuits, and output signals transmitted to the throttle actuator. Common causes include Engine Control Module (ECM) may be faulty, ECM harness power supply circuit is open or shorted, ECM harness ground circuit is open or shorted. 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
- P0605 2009 Nissan Altima Sedan indicates Engine Control Module Fault.
- Common causes
- Common causes include Engine Control Module (ECM) may be faulty, ECM harness power supply circuit is open or shorted, ECM harness ground circuit is open or shorted.
- 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.
Code P0605 2009 Nissan Altima Sedan Description
What are the Possible Causes of the DTC P0605 2009 Nissan Altima Sedan?
- Engine Control Module (ECM) may be faulty
- ECM harness power supply circuit is open or shorted
- ECM harness ground circuit is open or shorted
How to Fix the DTC P0605 2009 Nissan Altima Sedan?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0605 2009 Nissan Altima Sedan 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.
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Frequently Asked Questions about P0605 2009 Nissan Altima Sedan Code
1. What does the OBDII code P0605 mean on a 2009 Nissan Altima Sedan?
P0605 indicates a fault in the Engine Control Module (ECM) where the module's internal memory or processor is malfunctioning.
2. What are the common symptoms of P0605 in a 2009 Nissan Altima?
Symptoms may include the Check Engine Light turning on, engine stalling, rough idling, poor fuel efficiency, or the vehicle entering limp mode.
3. What causes the P0605 code to appear in a 2009 Nissan Altima?
Potential causes include a failed ECM, corrupted ECM software, electrical issues like poor wiring or connections, or even low battery voltage.
4. Can I drive my 2009 Nissan Altima with a P0605 code?
Driving with a P0605 code is not recommended, as it can result in poor performance, stalling, or further damage to the vehicle's systems.
5. How do I diagnose the P0605 code in a 2009 Nissan Altima?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting ECM wiring and connectors, checking for updates to the ECM software, and testing ECM functionality.
6. Can a weak battery trigger the P0605 code in a 2009 Nissan Altima?
Yes, low battery voltage or intermittent power supply to the ECM can sometimes trigger the P0605 code.
7. How do I fix the P0605 code on my 2009 Nissan Altima?
Repairs may include reprogramming or updating ECM software, repairing damaged wiring or connectors, or replacing the ECM if it’s beyond repair.
8. How much does it cost to repair a P0605 code in a 2009 Nissan Altima?
Costs vary, but ECM replacement can range from $500 to $1,200, while reprogramming or wiring repairs may be less expensive.
9. Does the P0605 code always mean the ECM is bad in a 2009 Nissan Altima?
Not always. The issue could stem from wiring problems, software glitches, or power supply issues rather than a completely failed ECM.
10. Can I reset the P0605 code without making repairs?
While you can clear the code with an OBDII scanner, it will likely return if the underlying issue is not addressed.
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