P0605 2002 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 2002 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 2002 Nissan Altima Sedan Description
What are the Possible Causes of the DTC P0605 2002 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 2002 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
There is a factory service bulletin for the 2002 Nissan Altima:
2002 Nissan Altima Factory Service Bulletin OBDII Code P0605
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0605 2002 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 2002 Nissan Altima Sedan Code
1. What does the OBDII code P0605 mean on a 2002 Nissan Altima Sedan?
The P0605 code indicates a fault in the Engine Control Module (ECM), specifically an issue with the ECM's internal memory or processing functions.
2. What are the common symptoms of the P0605 code in a 2002 Nissan Altima?
Symptoms can include the check engine light turning on, poor engine performance, stalling, difficulty starting, and reduced fuel efficiency.
3. What causes the P0605 code to appear in a 2002 Nissan Altima?
The code can be triggered by a faulty ECM, corrupted software, electrical issues such as poor wiring or connectors, or an improperly programmed ECM.
4. Can I drive my 2002 Nissan Altima with a P0605 code?
Driving with a P0605 code is not recommended, as it can cause erratic engine performance and lead to further damage to the vehicle.
5. How do I diagnose the P0605 code on a 2002 Nissan Altima?
Diagnosis involves using an OBDII scanner to confirm the code, inspecting ECM wiring and connectors for damage, and testing the ECM for proper functionality.
6. What is the most common fix for a P0605 code in a 2002 Nissan Altima?
The most common fix is replacing the ECM if it has been determined to be faulty, though reprogramming or repairing wiring may resolve the issue in some cases.
7. How much does it cost to repair a P0605 code on a 2002 Nissan Altima?
Replacing the ECM can cost between $500 and $1,500, including parts and labor. Reprogramming or repairing wiring is generally less expensive.
8. Can a dead battery cause a P0605 code in a 2002 Nissan Altima?
A dead or weak battery can occasionally cause ECM errors, but it is not a common cause of a P0605 code.
9. Does the P0605 code always mean the ECM is bad?
No, the code can also be caused by wiring issues, software problems, or other electrical faults, so proper diagnosis is necessary.
10. Can I reset the P0605 code without fixing the issue in my 2002 Nissan Altima?
You can clear the code with an OBDII scanner, but if the underlying issue isn’t fixed, the code will likely reappear.
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