AutoCodes – Toyota – B1273 2013 Toyota RAV4

B1273 2013 Toyota RAV4 Code - Sliding Roof ECU Communication Stop

Quick Answer

This Diagnostic Trouble Code (DTC) is stored when Local Interconnect Network (LIN) communication between the sliding roof drive gear sub-assembly and Main Body ECU (Multiplex Network Body ECU) stops for 10 seconds or more. Common causes include Faulty Sliding roof drive gear sub-assembly, Faulty Main Body ECU (Multiplex Network Body ECU), Main Body ECU harness is open or shorted. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1273 2013 Toyota RAV4 indicates Sliding Roof ECU Communication Stop.
Common causes: Common causes include Faulty Sliding roof drive gear sub-assembly, Faulty Main Body ECU (Multiplex Network Body ECU), Main Body ECU harness is open or shorted.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 462

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1273 2013 Toyota RAV4 Description

OBDII Code B1273 2013 Toyota RAV4 - Sliding Roof ECU Communication Stop - AutoCodes.com — B1273 2013 Toyota RAV4 Code - Sliding Roof ECU Communication Stop

What does this mean?

What are the Possible Causes of the DTC B1273 2013 Toyota RAV4?

Faulty Sliding roof drive gear sub-assembly
Faulty Main Body ECU (Multiplex Network Body ECU)
Main Body ECU harness is open or shorted
Main Body ECU circuit poor electrical connection

How to Fix the DTC B1273 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1273 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.

Need more information about the B1273 2013 Toyota RAV4 code?

Need more information on how to fix the B1273 2013 Toyota RAV4 code? Get Access to Factory Service Manuals

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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 B1273 2013 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B1273 in a 2013 Toyota RAV4?

The common symptoms of code B1273 include malfunctioning or unresponsive sliding roof operation, illuminated warning lights on the dashboard, and loss of communication with the sliding roof ECU.

2. What are the possible causes of OBDII code B1273 in a 2013 Toyota RAV4?

Possible causes of code B1273 can include faulty wiring connections, damaged wiring harnesses, a defective sliding roof ECU, or a communication error within the vehicle's network.

3. How can I diagnose the root cause of OBDII code B1273 in my Toyota RAV4?

To diagnose code B1273, a thorough inspection of the wiring connections related to the sliding roof system, testing the sliding roof ECU for functionality, and checking for any communication faults using a diagnostic scanner are recommended steps.

4. Can I repair OBDII code B1273 in my 2013 Toyota RAV4 myself?

Depending on the exact cause of the code, repairs for B1273 may range from simple wiring repairs to ECU replacement. If you have experience with automotive electrical systems, you may be able to address the issue yourself.

5. Is it safe to drive my Toyota RAV4 with OBDII code B1273 present?

It is generally not recommended to drive your vehicle with unresolved OBDII codes, as they can indicate underlying issues that may affect the vehicle's performance or safety.

6. How much does it typically cost to repair OBDII code B1273 in a 2013 Toyota RAV4?

The cost of repairing code B1273 can vary depending on the exact cause of the issue. Simple wiring repairs may be relatively inexpensive, while replacing the sliding roof ECU could be more costly.

7. Can resetting the OBDII system clear code B1273 in my Toyota RAV4?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing code B1273 is not addressed, the code is likely to reappear.

8. How urgent is it to address OBDII code B1273 in my Toyota RAV4?

While code B1273 may not cause immediate drivability issues, it is important to address it promptly to prevent potential problems with the sliding roof system and ensure the overall health of the vehicle's electronics.

9. Are there any recalls or technical service bulletins related to OBDII code B1273 in 2013 Toyota RAV4 models?

It is recommended to check with Toyota or a certified dealership for any recalls or technical service bulletins related to code B1273 in your specific vehicle model and year.

10. How can I prevent OBDII code B1273 from occurring in my Toyota RAV4?

Regularly inspecting the sliding roof system components, ensuring proper wiring connections, and promptly addressing any warning lights or issues related to the sliding roof can help prevent code B1273 from occurring in your Toyota RAV4.