Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
Your car has a special communication system that helps different parts of the car talk to each other. This code means there's a problem with one of the wires that helps these parts communicate.
The C1102 code indicates a low voltage condition in the FlexRay communication system, which is responsible for high-speed data exchange between electronic control units (ECUs).
The FlexRay system is a high-speed, deterministic, and fault-tolerant communication protocol used in automotive applications. A 'low circuit' condition suggests that the voltage level in one of the FlexRay communication lines is below the expected threshold, which can disrupt data transmission between ECUs.
• Warning lights on the dashboard
• Erratic behavior of electronic systems
• Loss of communication between ECUs
• Damaged or corroded wiring in the FlexRay network
• Faulty FlexRay transceiver
• Poor connection at the FlexRay connector
FlexRay: A high-speed communication protocol used in automotive applications.
ECU: Electronic Control Unit, a computer that controls various functions in a vehicle.
• Inspect the FlexRay wiring for damage or corrosion.
• Check the connections at the FlexRay connectors.
• Test the FlexRay transceiver for proper operation.
• Repair or replace damaged wiring.
• Clean and secure connections at the FlexRay connectors.
• Replace the faulty FlexRay transceiver.
• Multimeter
• OBD-II scanner
• Wire repair kit
$150 - $500
Moderate
• BMW 3 Series
• Audi A6
• Mercedes-Benz C-Class
• Regularly inspect wiring for damage.
• Ensure all connectors are secure.
• Avoid exposure of electronic components to moisture.
Communication Issue
• Have your vehicle inspected by a professional if you notice dashboard warning lights.
• Avoid driving the vehicle if electronic systems are behaving erratically.
Check with your vehicle manufacturer; this issue may be covered under warranty if the vehicle is still within the warranty period.
The C1102 code has become more common with the increasing use of advanced communication networks in modern vehicles.
Moderate – While the vehicle may still be drivable, unresolved communication issues can lead to further complications.
Driving with unresolved communication issues can compromise vehicle safety systems. It is advisable to address this issue promptly.
• Vehicle ignition on
• FlexRay system active
The FlexRay components are typically located near the vehicle's main electronic control units, often in the engine bay or under the dashboard.
Q: What is the FlexRay system?
A: FlexRay is a high-speed communication protocol used in vehicles to ensure reliable data exchange between electronic control units.
Q: Can I drive with a C1102 code?
A: It's best to have the issue diagnosed and repaired, as communication problems can lead to safety system malfunctions.
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