AutoCodes – Generic – U1216

U1216 Code - CAN Controller

Quick Answer

It is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. Common causes include Faulty Audio and Video (AV) Control Unit, Audio and Video Control Unit harness is open or shorted, Audio and Video Control Unit circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: U1216 indicates CAN Controller.
Common causes: Common causes include Faulty Audio and Video (AV) Control Unit, Audio and Video Control Unit harness is open or shorted, Audio and Video Control Unit circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 8,062

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 04, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U1216 Description

It is the master unit of the MULTI AV system and it is connected to each control unit by means of communication. It operates each system according to communication signals from the AV control unit. The AV control unit includes audio function and vehicle information function. It is connected to ECM and combination meter via CAN communication to obtain necessary information for the vehicle information function.
The Diagnostic Trouble Code (DTC) sets when an internal malfunction of the Audio and Video (AV) Control Unit (Controller Area Network (CAN) controller) is detected.

OBDII Code U1216 - CAN Controller - AutoCodes.com — U1216 Code - CAN Controller

What does this mean?

What are the Possible Causes of the DTC U1216?

Faulty Audio and Video (AV) Control Unit
Audio and Video Control Unit harness is open or shorted
Audio and Video Control Unit circuit poor electrical connection

How to Fix the DTC U1216?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U1216 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the U1216 code?

Need more information on how to fix the U1216 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the U1216 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

U1216 Infiniti — CAN Controller
U1216 Nissan — CAN Controller

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U1216 Code

1. What does the OBDII code U1216 for CAN Controller mean?

The U1216 code indicates a fault with the CAN (Controller Area Network) controller in the vehicle's communication system.

2. What are the common symptoms of a U1216 code?

Common symptoms of a U1216 code may include issues with communication between various modules in the vehicle, dashboard warning lights, and potential loss of certain vehicle functions.

3. What are the possible causes of a U1216 code?

Causes of a U1216 code can include wiring issues, faulty CAN controller module, communication network failures, or software malfunctions within the vehicle's electronic control system.

4. How can I diagnose a U1216 code?

Diagnosing a U1216 code typically involves using a professional OBDII scanner to retrieve the code, inspecting the vehicle's wiring for any visible damage, and testing the CAN controller module for proper functionality.

5. Can a U1216 code be repaired at home?

Repairing a U1216 code may require advanced diagnostic tools and technical expertise. It is recommended to consult a professional mechanic or dealership for proper diagnosis and repair.

6. Is it safe to drive with a U1216 code?

Continuing to drive with a U1216 code may result in further communication failures within the vehicle's electronic system. It is advisable to address the issue promptly to prevent potential safety risks.

7. How much does it cost to fix a U1216 code?

The cost to fix a U1216 code can vary depending on the underlying cause of the issue. Repairs may range from simple wiring repairs to replacing the CAN controller module, potentially costing several hundred dollars.

8. Can a U1216 code cause other problems in the vehicle?

A U1216 code can disrupt communication between various vehicle modules, leading to potential issues with engine performance, transmission operation, and other electronic systems in the vehicle.

9. How long does it take to repair a U1216 code?

The repair time for a U1216 code can vary based on the complexity of the issue and the availability of parts. Some repairs may be completed within a few hours, while more intricate problems may require additional time.

10. Is the U1216 code a common issue in certain vehicle makes and models?

The U1216 code related to the CAN controller can occur in various vehicle makes and models equipped with a Controller Area Network communication system. However, certain vehicles may be more prone to experiencing this specific fault.