C1A73 2017 Toyota RAV4 Code - Driving Support ECU Receive Data Malfunction
Quick Answer
If a communication error between the Driving Support ECU Assembly and another ECU is detected, Diagnostic Trouble Code (DTC) C1A73 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
- C1A73 2017 Toyota RAV4 indicates Driving Support ECU Receive Data Malfunction.
- 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.
Code C1A73 2017 Toyota RAV4 Description
What are the Possible Causes of the DTC C1A73 2017 Toyota RAV4?
- Faulty Controller Area Network (CAN) Communication System
- Faulty Forward Recognition Camera
- Faulty Driving Support ECU Assembly
How to Fix the DTC C1A73 2017 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.
Code Tech Notes
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 C1A73 2017 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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Frequently Asked Questions about C1A73 2017 Toyota RAV4 Code
1. What are the common symptoms of OBDII code C1A73 in a 2017 Toyota RAV4?
- Common symptoms include malfunctioning driving support features such as lane departure warning, adaptive cruise control, or automatic emergency braking.
2. What can cause the Driving Support ECU Receive Data Malfunction in a 2017 Toyota RAV4?
- The code C1A73 can be triggered by issues with the driving support electronic control unit (ECU), faulty sensors, wiring problems, or software glitches.
3. How serious is the C1A73 code in a 2017 Toyota RAV4?
- While the vehicle may still be operable, the malfunctioning driving support features can affect safety and convenience. It is recommended to address the issue promptly.
4. Can I continue driving my 2017 Toyota RAV4 with the C1A73 code present?
- It is generally safe to drive the vehicle, but you may experience disruptions in driving support features. It is advisable to have the issue diagnosed and repaired as soon as possible.
5. How can I diagnose the Driving Support ECU Receive Data Malfunction in my 2017 Toyota RAV4?
- Diagnosis typically involves using a diagnostic scanner to retrieve the specific trouble codes, inspecting the driving support system components, and testing sensors and wiring for faults.
6. What are some DIY repair tips for the C1A73 code in a 2017 Toyota RAV4?
- DIY repair options are limited for this code due to the complexity of the driving support system. It is recommended to consult a professional technician for proper diagnosis and repair.
7. How much does it cost to repair the Driving Support ECU Receive Data Malfunction in a 2017 Toyota RAV4?
- Repair costs can vary depending on the root cause of the issue. It is advisable to get a diagnostic assessment from a qualified mechanic to determine the exact repair cost.
8. Can resetting the OBDII system clear the C1A73 code in a 2017 Toyota RAV4?
- Resetting the OBDII system may temporarily clear the code, but it is likely to reappear if the underlying issue is not addressed. It is best to diagnose and fix the root cause of the problem.
9. Will the C1A73 code cause my 2017 Toyota RAV4 to fail an emissions test?
- The C1A73 code is related to the driving support system and is not directly linked to emissions. However, it is still important to address the issue to ensure the vehicle's overall functionality.
10. How long does it take to repair the Driving Support ECU Receive Data Malfunction in a 2017 Toyota RAV4?
- The repair time can vary based on the specific cause of the issue. Simple fixes may take a few hours, while more complex repairs could require a day or two.
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