AutoCodes – Toyota – C1437 2017 Toyota RAV4

C1437 2017 Toyota RAV4 Code - Lost Communication With ECM

Quick Answer

The Skid Control ECU (Brake Actuator Assembly) receives signals from the Engine Control Module (ECM) via the Controller Area Network (CAN) communication system. Common causes include Faulty Skid Control ECU (Brake Actuator Assembly), Skid Control ECU harness is open or shorted, Skid Control ECU 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
C1437 2017 Toyota RAV4 indicates Lost Communication With ECM.
Common causes
Common causes include Faulty Skid Control ECU (Brake Actuator Assembly), Skid Control ECU harness is open or shorted, Skid Control ECU 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 272
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 30, 2023
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Code C1437 2017 Toyota RAV4 Description

The Skid Control ECU (Brake Actuator Assembly) receives signals from the Engine Control Module (ECM) via the Controller Area Network (CAN) communication system. The Diagnostic Trouble Code (DTC) will be set when the terminal voltage is 10 V or more and the vehicle speed is 15 km/h (9 mph) or more, data cannot be sent to the ECM for 2 seconds or more.
OBDII Code C1437 2017 Toyota RAV4 - Lost Communication With ECM - AutoCodes.com
C1437 2017 Toyota RAV4 Code - Lost Communication With ECM

What are the Possible Causes of the DTC C1437 2017 Toyota RAV4?

  • Faulty Skid Control ECU (Brake Actuator Assembly)
  • Skid Control ECU harness is open or shorted
  • Skid Control ECU circuit poor electrical connection
  • Faulty Engine Control Module (ECM)

How to Fix the DTC C1437 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the C1437 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.

Need more information about the C1437 2017 Toyota RAV4 code?

Need more information on how to fix the C1437 2017 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the C1437 2017 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area

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 C1437 2017 Toyota RAV4 Code

1. What are the common symptoms of OBDII code C1437 in a 2017 Toyota RAV4?

The common symptoms include loss of communication with the Engine Control Module (ECM), illuminated Check Engine Light, and potential drivability issues.

2. What does OBDII code C1437 "Lost Communication With ECM" mean for a 2017 Toyota RAV4?

This code indicates a communication problem between the vehicle's diagnostic system and the Engine Control Module (ECM), which is responsible for managing the engine's operation.

3. What are the possible causes of OBDII code C1437 in a 2017 Toyota RAV4?

Common causes include faulty wiring or connectors, a malfunctioning ECM, a blown fuse, software issues, or a communication bus fault.

4. How can I diagnose the issue related to OBDII code C1437 on my 2017 Toyota RAV4?

Diagnosis typically involves checking the wiring and connectors for damage, ensuring the ECM is properly powered, checking for blown fuses, and using a scan tool to communicate with the ECM.

5. Can I still drive my 2017 Toyota RAV4 with OBDII code C1437 present?

It's not recommended to drive the vehicle with this code present, as it can lead to potential drivability issues and further damage if left unresolved.

6. How can I reset OBDII code C1437 on my 2017 Toyota RAV4?

Resetting the code involves using an OBDII scanner to clear the code after addressing the underlying issue causing the communication problem with the ECM.

7. What are some repair tips for fixing OBDII code C1437 on a 2017 Toyota RAV4?

Repair tips include checking and repairing any damaged wiring or connectors, ensuring the ECM is functioning properly, and verifying that all related fuses are in good condition.

8. Is it necessary to visit a mechanic for OBDII code C1437 on a 2017 Toyota RAV4?

While some DIY enthusiasts may attempt to diagnose and repair the issue themselves, it's recommended to consult a qualified mechanic for proper diagnosis and repair of this code.

9. How much does it typically cost to fix OBDII code C1437 on a 2017 Toyota RAV4?

The cost of fixing this code can vary depending on the underlying cause, but it may involve expenses for diagnostic time, parts replacement, and labor costs.

10. How can I prevent OBDII code C1437 from recurring in my 2017 Toyota RAV4?

Regular maintenance, checking for loose connections, avoiding water damage to electrical components, and promptly addressing any warning signs can help prevent this code from reoccurring.

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