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 has a problem with its memory, like when a computer can't find a file it needs to run a program.
The P0605 code indicates a malfunction with the Read Only Memory (ROM) in the vehicle's Engine Control Module (ECM).
The ECM uses the ROM to store essential data and instructions required for engine management. A P0605 code is triggered when the ECM detects an error in the ROM, which can affect the vehicle's performance and drivability.
• Check Engine Light (CEL) is on
• Engine may not start
• Poor engine performance
• Faulty ECM
• Corrupted software in the ECM
• Electrical issues such as poor connections or damaged wiring
ECM: Engine Control Module, the computer responsible for managing engine operations.
ROM: Read Only Memory, a type of non-volatile storage used in computers and electronic devices.
• Use an OBD-II scanner to confirm the code.
• Inspect the ECM and its connections for damage or corrosion.
• Check for any software updates or recalls related to the ECM.
• Reprogram or update the ECM software.
• Repair or replace damaged wiring or connections.
• Replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• ECM programming tool
$300 - $1200
Difficult
• Ford F-150
• Chevrolet Silverado
• Toyota Camry
• Regularly update ECM software.
• Ensure all electrical connections are secure.
• Avoid aftermarket modifications that may affect the ECM.
Engine Control Module Issue
• Do not ignore the Check Engine Light.
• Consult a professional mechanic for diagnosis.
• Avoid driving the vehicle until the issue is resolved.
Check with the vehicle manufacturer for ECM warranty coverage, as some ECM issues may be covered under extended warranties.
The P0605 code has been present in OBD-II systems since the introduction of electronic control modules in vehicles, reflecting the importance of ROM integrity in engine management.
High – This issue can lead to serious drivability problems and should be addressed promptly.
Driving with a malfunctioning ECM can lead to unsafe driving conditions and may violate emissions regulations.
• Engine at operating temperature
• Vehicle in park or neutral
The ECM is typically located in the engine bay or under the dashboard on the passenger side.
Q: Can I drive my car with a P0605 code?
A: It's not recommended to drive with a P0605 code, as it can lead to poor performance or the vehicle not starting.
Q: Will resetting the Check Engine Light fix a P0605 code?
A: Resetting the light may temporarily clear the code, but it won't fix the underlying issue with the ECM.
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