AutoCodes – Toyota – C1A72 2013 Toyota RAV4

C1A72 2013 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 2013 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 169

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 2013 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 2013 Toyota RAV4 - Communication Error from FCM to Driving Support ECU - AutoCodes.com — C1A72 2013 Toyota RAV4 Code - Communication Error from FCM to Driving Support ECU

What does this mean?

What are the Possible Causes of the DTC C1A72 2013 Toyota RAV4?

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

How to Fix the DTC C1A72 2013 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 2013 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 2013 Toyota RAV4 Code

1. What does OBDII code C1A72 in a 2013 Toyota RAV4 indicate?

The code C1A72 in a 2013 Toyota RAV4 signifies a communication error between the Forward Recognition Camera Module (FCM) and the Driving Support Electronic Control Unit (ECU).

2. What are the common symptoms of OBDII code C1A72 in a 2013 Toyota RAV4?

Common symptoms of code C1A72 may include malfunctioning advanced driver assistance systems (ADAS) features like lane departure warning, automatic emergency braking, or adaptive cruise control.

3. What are the possible causes of a communication error between the FCM and Driving Support ECU in a 2013 Toyota RAV4?

Potential causes of the communication error can include faulty wiring connections, damaged components, software issues, or a malfunctioning FCM or Driving Support ECU.

4. How can I diagnose the communication error related to OBDII code C1A72 in my 2013 Toyota RAV4?

To diagnose the issue, you may need to perform a thorough inspection of the wiring harnesses, connectors, and components related to the FCM and Driving Support ECU. Checking for software updates or performing a diagnostic scan can also help pinpoint the problem.

5. Can I still drive my 2013 Toyota RAV4 with OBDII code C1A72 present?

It is not recommended to drive your vehicle with the C1A72 code active, especially if it affects critical safety systems. It is advisable to address the communication error promptly to ensure the proper functioning of your vehicle's ADAS features.

6. How can I repair a communication error causing OBDII code C1A72 in my 2013 Toyota RAV4?

Repairing the issue may involve fixing wiring connections, replacing damaged components, updating software, or repairing/replacing the FCM or Driving Support ECU as necessary. Consulting a professional mechanic or dealership is recommended for a proper diagnosis and repair.

7. Are there any recalls or technical service bulletins related to OBDII code C1A72 in a 2013 Toyota RAV4?

It's advisable to check with Toyota's official website or contact a dealership to inquire about any recalls or technical service bulletins related to code C1A72 in your specific vehicle model and year.

8. Can resetting the OBDII code C1A72 in my 2013 Toyota RAV4 resolve the communication error issue?

Simply clearing the error code may temporarily eliminate warning lights, but it won't fix the underlying communication problem. It's crucial to diagnose and address the root cause of the code to prevent future occurrences.

9. Will a communication error causing OBDII code C1A72 affect my 2013 Toyota RAV4's overall performance?

While the communication error itself may not impact the vehicle's basic functionality, it can disable or impair important safety features tied to the ADAS systems. Promptly addressing the issue is crucial for maintaining optimal safety and performance.

10. How much can I expect to pay for repairing a communication error leading to OBDII code C1A72 in my 2013 Toyota RAV4?

The cost of repairing the communication error can vary based on the exact cause, parts needed for replacement, labor costs, and whether the vehicle is under warranty. It's recommended to obtain estimates from qualified technicians or dealerships for an accurate assessment.