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Code C1116

Quick reference

C1116 at a glance

Plain-language meaning
The car's computer system that helps keep it stable has a communication problem. It's like when your walkie-talkie stops working, and you can't talk to your friend.
Urgency
High – This issue can affect the vehicle's stability and safety.
Difficulty
Moderate
System
Communication Error
Tools mentioned
OBD-II scanner, Multimeter, Screwdriver set

This summary uses the existing diagnostic information shown in full below.

Laymans terms

The car's computer system that helps keep it stable has a communication problem. It's like when your walkie-talkie stops working, and you can't talk to your friend.

Explanation

The Vehicle Dynamics Control Module is experiencing a communication error with the FlexRay network, which is crucial for vehicle stability and control.

Technical description

The C1116 code indicates that there is a problem with the FlexRay transceiver in the Vehicle Dynamics Control Module. FlexRay is a high-speed communication system used in modern vehicles to ensure real-time data exchange for vehicle stability and control functions. A shutdown path error means the transceiver is unable to maintain proper communication, potentially affecting vehicle dynamics systems.

Symptoms

• Warning light on the dashboard

• Loss of vehicle stability control

• Erratic vehicle handling

Common Causes

• Faulty FlexRay transceiver

• Wiring issues or poor connections

• Faulty Vehicle Dynamics Control Module

Glossary

FlexRay: A high-speed communication protocol used in automotive networks.

Transceiver: A device that can both transmit and receive communications.

Diagnosis steps

• Check for any loose or damaged wiring related to the FlexRay system.

• Inspect the FlexRay transceiver for faults.

• Use a diagnostic tool to check for additional error codes.

Repair procedures

• Repair or replace any damaged wiring.

• Replace the faulty FlexRay transceiver.

• Reprogram or replace the Vehicle Dynamics Control Module if necessary.

Tools required

• OBD-II scanner

• Multimeter

• Screwdriver set

Estimated repair cost

$200 - $800

Difficulty level

Moderate

Commonly affected vehicles

• BMW 3 Series

• Audi A4

• Mercedes-Benz C-Class

Preventive measures

• Regular maintenance checks

• Ensure all software updates are applied

• Inspect wiring and connections periodically

Error code type

Communication Error

User experience recommendations

• Avoid driving aggressively until the issue is resolved.

• Consult a professional mechanic for accurate diagnosis.

Warranty information

Check with the vehicle manufacturer for warranty coverage on electronic control modules.

Historical data

This code has become more common with the increased use of FlexRay networks in modern vehicles.

Urgency level

High – This issue can affect the vehicle's stability and safety.

Testing conditions

• Vehicle must be stationary.

• Ensure the ignition is in the 'ON' position.

Component location

The Vehicle Dynamics Control Module is typically located under the dashboard or near the center console.

FAQs

Q: Can I drive my car with a C1116 code?
A: It's not recommended as it can affect vehicle stability and safety.

Q: How can I reset the C1116 code?
A: The code can be reset using an OBD-II scanner, but it's important to fix the underlying issue first.

Optional diagnostic gear

Tools that may help diagnose C1116

FOXWELL Multi-System Scanner diagnostic tool illustration

Pro · Four-system diagnostics

FOXWELL Multi-System Scanner

A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.

Chassis and ABS faults usually need a scanner that can read brake-system data directly.

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EPAuto 1/2" Torque Wrench diagnostic tool illustration

Universal · Torque wrench

EPAuto 1/2" Torque Wrench

Useful when reassembly torque matters for wheel, suspension, and under-hood fasteners.

Useful when wheel, hub, or suspension hardware needs correct reassembly torque.

View on Amazon
MaxxHaul Vehicle Ramps diagnostic tool illustration

Universal · Drive-on ramps

MaxxHaul Vehicle Ramps

Helpful for safer access underneath the vehicle during exhaust, EVAP, and underbody inspection work.

Helpful for safer access during underbody inspection work.

View on Amazon

These are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.

Source: ezOBD2 diagnostic database
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