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 having trouble talking to the part that helps control the car's speed automatically, like when you're on a highway and want the car to keep a steady speed without using your foot.
The P1614 code is triggered when there is a communication issue between the vehicle's main computer and the Adaptive Cruise Control (ACC) system.
The P1614 code indicates a malfunction in the serial communication link between the Engine Control Module (ECM) and the Adaptive Cruise Control (ACC) module. This could be due to a wiring issue, a failed module, or a software problem that disrupts the data exchange necessary for the ACC to function properly.
• Adaptive Cruise Control not working
• Warning light on the dashboard
• Inconsistent vehicle speed control
• Faulty Adaptive Cruise Control module
• Damaged wiring or connectors
• Software glitch in the ECM or ACC module
ACC: Adaptive Cruise Control
ECM: Engine Control Module
• Check for other related codes
• Inspect wiring and connectors for damage
• Test the ACC module functionality
• Repair or replace damaged wiring
• Reprogram or update the ECM/ACC software
• Replace the ACC module if faulty
• OBD-II scanner
• Multimeter
• Diagnostic software
$200 - $800
Moderate
• Toyota Camry
• Honda Accord
• Ford Fusion
• Regularly inspect wiring harnesses for damage
• Keep software up to date
• Avoid moisture exposure to electronic components
Communication Error
• Avoid using ACC until the issue is resolved
• Consult a professional mechanic for diagnosis
• Check for any recalls related to the ACC system
Check vehicle warranty for coverage on electronic components and software issues.
This code has been more prevalent in vehicles with advanced driver assistance systems as they rely heavily on electronic communication.
Moderate – The vehicle can still be driven, but the ACC feature will not function properly.
Driving without a functioning ACC may require more manual speed adjustments, increasing driver fatigue on long trips.
• Vehicle ignition on
• ACC system activated
The ACC module is typically located near the front of the vehicle, often behind the grille or bumper.
Q: Can I still drive my car with this code?
A: Yes, but the Adaptive Cruise Control feature will not work.
Q: Will this code affect other systems?
A: It primarily affects the ACC, but it may also impact other systems that rely on the same communication network.
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