• Warning lights on the dashboard
• Intermittent loss of communication between control modules
• Erratic vehicle behavior
• Damaged or corroded wiring in the FlexRay circuit
• Faulty FlexRay control module
• Poor connections at the FlexRay connectors
FlexRay: A high-speed communication protocol used in automotive networks.
Short Circuit: An electrical fault where current travels along an unintended path.
• C1105
• C1106
This code means that there's a problem with the car's communication system, like when your phone can't connect to Wi-Fi because the wires are mixed up.
The FlexRay circuit is responsible for high-speed communication between various electronic components in the vehicle. A short circuit means that the electrical signals are not traveling correctly due to a wiring issue.
The C1104 code indicates a short circuit condition in the FlexRay communication network. This network is used for data exchange between multiple control units in the vehicle. A short in the FlexRay_High or FlexRay_Low circuit can disrupt communication, leading to various system malfunctions.
• Inspect the FlexRay wiring for damage or corrosion
• Check the connections at the FlexRay connectors
• Use a diagnostic tool to test the FlexRay control module
• Repair or replace damaged wiring
• Clean and secure all FlexRay connectors
• Replace the FlexRay control module if faulty
• OBD-II scanner
• Multimeter
• Wiring repair kit
$200 - $600
Moderate
• BMW 3 Series
• Audi A4
• Mercedes-Benz C-Class
• Regular inspection of vehicle wiring
• Avoiding exposure of vehicle electronics to moisture
• Routine maintenance checks
Communication Network Issue
• Avoid driving the vehicle until the issue is diagnosed and repaired
• Consult a professional mechanic for accurate diagnosis
Check with the vehicle manufacturer for warranty coverage on electronic components.
The C1104 code has become more common with the increased use of high-speed communication networks in modern vehicles.
High – A short in the communication network can lead to serious vehicle malfunctions.
Driving with a faulty communication system can be dangerous and is not recommended.
• Vehicle at operating temperature
• All electronic systems powered on
The FlexRay network components are typically located throughout the vehicle, connecting various control modules.
Q: Can I drive with a C1104 code?
A: It's not recommended as it can lead to unpredictable vehicle behavior.
Q: How do I know if my FlexRay circuit is shorted?
A: A diagnostic scan tool can help identify a short circuit in the FlexRay network.