AutoCodes – Toyota – C1A72 2014 Toyota RAV4

C1A72 2014 Toyota RAV4 Code - Communication Error from FCM to Driving Support ECU

Quick Answer

If a communication error between the Driving Support ECU Assembly and Forward Recognition Camera is detected, Diagnostic Trouble Code (DTC) C1A72 is stored. Common causes include Faulty Controller Area Network (CAN) Communication System, Faulty Forward Recognition Camera, Faulty Driving Support ECU Assembly. 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: C1A72 2014 Toyota RAV4 indicates Communication Error from FCM to Driving Support ECU.
Common causes: Common causes include Faulty Controller Area Network (CAN) Communication System, Faulty Forward Recognition Camera, Faulty Driving Support ECU Assembly.
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 197

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Mar 03, 2023

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code C1A72 2014 Toyota RAV4 Description

If a communication error between the Driving Support ECU Assembly and Forward Recognition Camera is detected, Diagnostic Trouble Code (DTC) C1A72 is stored. Front Camera Module (FCM)

OBDII Code C1A72 2014 Toyota RAV4 - Communication Error from FCM to Driving Support ECU - AutoCodes.com — C1A72 2014 Toyota RAV4 Code - Communication Error from FCM to Driving Support ECU

What does this mean?

What are the Possible Causes of the DTC C1A72 2014 Toyota RAV4?

Faulty Controller Area Network (CAN) Communication System
Faulty Forward Recognition Camera
Faulty Driving Support ECU Assembly

How to Fix the DTC C1A72 2014 Toyota RAV4?

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 does this mean?

Code Tech Notes

When replacing the Forward Recognition Camera, always replace it with a new one. If a Forward Recognition Camera which was installed in another vehicle is used, the information stored in the Forward Recognition Camera will not match the information from the vehicle. As a result, a DTC may be stored.
If the Forward Recognition Camera has been replaced with a new one, be sure to perform Forward Recognition Camera learning.
When replacing the Driving Support ECU Assembly, always replace it with a new one. If a Driving Support ECU Assembly which was installed in another vehicle is used, the information stored in the Driving Support ECU Assembly will not match the information from the vehicle. As a result, a DTC may be stored.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1A72 2014 Toyota RAV4 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.

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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 C1A72 2014 Toyota RAV4 Code

1. What does the OBDII code C1A72 in a 2014 Toyota RAV4 indicate?

The code C1A72 indicates a communication error between the Forward Recognition Camera Module (FCM) and the Driving Support Electronic Control Unit (ECU) in the vehicle.

2. What are the common symptoms of OBDII code C1A72 in a 2014 Toyota RAV4?

Common symptoms of code C1A72 include the malfunction indicator light (MIL) illuminating on the dashboard, loss of driving support features like lane departure warning or adaptive cruise control, and potential issues with the vehicle's safety systems.

3. What are some possible causes of a communication error from FCM to Driving Support ECU in a 2014 Toyota RAV4?

Possible causes of the C1A72 code include damaged wiring or connectors between the FCM and Driving Support ECU, a faulty FCM or ECU, software glitches, or a power supply issue.

4. How can I diagnose the communication error related to code C1A72 in my 2014 Toyota RAV4?

Diagnosing the C1A72 code typically involves checking the wiring and connectors between the FCM and Driving Support ECU for damage, verifying power and ground connections, and using a diagnostic scan tool to retrieve specific error codes and data from the affected modules.

5. Can I drive my 2014 Toyota RAV4 with the C1A72 code present?

It is not recommended to drive the vehicle with the C1A72 code present, as it indicates a communication error between critical safety systems. Driving with this code unresolved may result in the loss of driving support features or compromised safety systems.

6. How can I repair a communication error from FCM to Driving Support ECU causing the C1A72 code in my 2014 Toyota RAV4?

Repairing the C1A72 code may involve repairing or replacing damaged wiring or connectors, resetting the affected modules, updating software if necessary, or replacing the faulty FCM or Driving Support ECU.

7. Is it necessary to visit a dealership for diagnosing and repairing the C1A72 code in my 2014 Toyota RAV4?

While a dealership may have specialized tools and expertise for diagnosing and repairing the C1A72 code, independent automotive repair shops with experience in handling advanced vehicle electronics can also effectively diagnose and resolve the issue.

8. Can a DIY enthusiast fix the communication error related to code C1A72 in a 2014 Toyota RAV4?

While some basic troubleshooting steps like checking connectors and wiring can be performed by a DIY enthusiast, diagnosing and repairing the C1A72 code often requires advanced diagnostic equipment and technical knowledge, making it challenging for most DIYers.

9. How much does it typically cost to repair a communication error causing the C1A72 code in a 2014 Toyota RAV4?

The cost of repairing the C1A72 code can vary depending on the root cause of the issue, the need for parts replacement, labor costs, and whether the repair is performed at a dealership or an independent repair shop. Costs can range from a few hundred to over a thousand dollars.

10. How can I prevent the recurrence of a communication error triggering the C1A72 code in my 2014 Toyota RAV4?

To prevent the recurrence of the C1A72 code, it's essential to perform regular maintenance checks on the vehicle's electronic systems, address any wiring or connector issues promptly, and follow the manufacturer's recommended service schedule to ensure all software updates are applied.