Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is confused about the type of engine it thinks it has. It's like when you tell your friend you have a cat, but they see a dog instead.
The engine control module (ECM) is detecting a mismatch between the expected engine variant and the actual engine configuration.
The P3289 code is triggered when the ECM detects an inconsistency between the programmed engine variant data and the actual engine hardware or configuration. This can occur due to incorrect programming, a faulty ECM, or mismatched components.
• Check Engine Light is on
• Poor engine performance
• Possible engine stalling
• Incorrect ECM programming
• Faulty engine control module
• Mismatched engine components
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Verify the ECM programming matches the engine variant.
• Inspect engine components for correct configuration.
• Test the ECM for faults or errors.
• Reprogram the ECM with the correct engine variant data.
• Replace mismatched engine components.
• Replace the ECM if faulty.
• OBD-II scanner
• Multimeter
• ECM programming tool
$200 - $1500
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Ensure ECM is programmed correctly during installation.
• Use compatible engine components.
• Regularly update ECM software.
Engine Performance
• Consult a professional mechanic for diagnosis.
• Avoid driving the vehicle until the issue is resolved.
Check vehicle warranty for ECM coverage.
This code has been associated with incorrect ECM programming or component mismatches in various vehicles.
Moderate – It is recommended to address this issue soon to prevent further engine performance problems.
Driving with this code may lead to engine performance issues. It is advised to have it checked by a professional.
• Engine running
• Vehicle stationary
The ECM is usually located in the engine bay or under the dashboard.
Q: Can I drive with a P3289 code?
A: It's not recommended as it may lead to poor engine performance or stalling.
Q: How do I know if my ECM is faulty?
A: A professional diagnostic test is needed to determine ECM faults.
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