Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer systems are not talking to each other properly because they are using different languages.
The Controller Area Network (CAN) is a system that allows different parts of the car to communicate. A version mismatch means that some parts are using different software versions, causing communication issues.
P1607 indicates a mismatch in the CAN (Controller Area Network) protocol versions among the car's electronic control units (ECUs). This can lead to communication errors and improper functioning of vehicle systems.
• Warning lights on the dashboard
• Erratic vehicle behavior
• Loss of certain functionalities
• Software update not applied to all ECUs
• Faulty ECU
• Corrupted software in one or more ECUs
ECU: Electronic Control Unit
CAN: Controller Area Network
• Check for any recent software updates or changes
• Use a diagnostic tool to scan for other related codes
• Verify the software version of all ECUs
• Update all ECUs to the latest software version
• Replace any faulty ECUs
• Reprogram the affected ECUs
• OBD-II scanner
• Diagnostic software
• ECU programming tool
$200 - $600
Moderate
• Toyota Camry
• Honda Accord
• Ford Focus
• Regularly update vehicle software
• Ensure all ECUs are updated simultaneously
• Avoid unauthorized modifications to the vehicle's software
Communication Error
• Have your vehicle checked by a professional mechanic
• Avoid driving the vehicle if it behaves erratically
• Ensure all software updates are performed by authorized personnel
Check with the vehicle manufacturer for warranty coverage on ECU issues.
P1607 has been a known issue in vehicles with advanced electronic systems, especially when software updates are not uniformly applied.
Moderate – It should be addressed soon to avoid potential communication failures.
Driving with unresolved communication errors may lead to safety risks. Ensure repairs are conducted by qualified technicians.
• Vehicle ignition in ON position
• All vehicle systems powered
ECUs are located throughout the vehicle, often behind the dashboard, in the engine bay, or in the trunk.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to improper vehicle operation and potential safety risks.
Q: Can I fix this issue myself?
A: It is recommended to have a professional handle this issue due to the complexity of ECU programming.
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