AutoCodes – Lexus – B1267 Lexus

B1267 Lexus Code - Instrument Panel System Communication Bus Malfunction Short To Ground

Quick Answer

This Diagnostic Trouble Code (DTC) is output when +B (Battery) or GND (Ground) short occurs on instrument panel system communication bus (Engine Control Module, Multi Display, A/C ECU and Combination Meter ECU). Common causes include Faulty Engine Control Module (ECM), Faulty Multi Display ECU, Faulty A/C ECU. 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
B1267 Lexus indicates Instrument Panel System Communication Bus Malfunction Short To Ground.
Common causes
Common causes include Faulty Engine Control Module (ECM), Faulty Multi Display ECU, Faulty A/C ECU.
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 1,564
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 29, 2024
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Code B1267 Lexus Description

This Diagnostic Trouble Code (DTC) is output when +B (Battery) or GND (Ground) short occurs on instrument panel system communication bus (Engine Control Module, Multi Display, A/C ECU and Combination Meter ECU). If +B or GND short is detected on instrument panel system communication bus, separate it by bus cut relay in body ECU to prevent while communication buses failure.
OBDII Code B1267 Lexus - Instrument Panel System Communication Bus Malfunction Short To Ground - AutoCodes.com
B1267 Lexus Code - Instrument Panel System Communication Bus Malfunction Short To Ground

What are the Possible Causes of the DTC B1267 Lexus?

  • Faulty Engine Control Module (ECM)
  • Faulty Multi Display ECU
  • Faulty A/C ECU
  • Faulty Combination Meter ECU
  • The harness is open or shorted between ECU
  • ECU circuit poor electrical connection

How to Fix the DTC B1267 Lexus?

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 B1267 Lexus 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 B1267 Lexus code?

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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 B1267 Lexus Code

1. What are the common symptoms of OBDII code B1267 in a Lexus related to Instrument Panel System Communication Bus Malfunction Short To Ground?

- Common symptoms include malfunctioning instrument panel gauges, warning lights staying on, and communication issues with other vehicle systems.

2. What are the possible causes of OBDII code B1267 in a Lexus indicating Instrument Panel System Communication Bus Malfunction Short To Ground?

- The code can be triggered by a short to ground in the communication bus wiring, faulty instrument cluster, damaged connectors, or issues with other control modules connected to the bus.

3. How can I diagnose the OBDII code B1267 in a Lexus for Instrument Panel System Communication Bus Malfunction Short To Ground?

- Diagnosis involves inspecting the wiring harness for shorts, checking the instrument cluster and control modules for faults, and using a diagnostic scan tool to pinpoint the source of the communication bus malfunction.

4. Can I repair OBDII code B1267 in a Lexus related to Instrument Panel System Communication Bus Malfunction Short To Ground myself?

- Depending on your skills and tools, you may be able to repair this issue yourself by identifying and repairing the short to ground, replacing faulty components, or resetting the affected systems.

5. Is it safe to drive my Lexus with OBDII code B1267 for Instrument Panel System Communication Bus Malfunction Short To Ground?

- It is not recommended to drive the vehicle with this code active, as it can lead to inaccurate instrument readings, potential safety hazards, and communication failures with critical vehicle systems.

6. How much does it typically cost to repair OBDII code B1267 in a Lexus indicating Instrument Panel System Communication Bus Malfunction Short To Ground?

- The repair costs for this code can vary depending on the root cause of the issue, but expect expenses for parts and labor to range from a couple of hundred dollars to over a thousand dollars at a dealership or repair shop.

7. Can a faulty battery or alternator cause OBDII code B1267 in a Lexus for Instrument Panel System Communication Bus Malfunction Short To Ground?

- While a weak battery or faulty alternator can cause electrical issues in a vehicle, they are less likely to trigger this specific code. It is best to focus on diagnosing the communication bus and related components.

8. Will resetting the OBDII code B1267 in a Lexus resolve the Instrument Panel System Communication Bus Malfunction Short To Ground issue?

- Simply clearing the code without addressing the underlying cause will not fix the problem. It is essential to diagnose and repair the root issue to prevent the code from reoccurring.

9. How long does it take to repair OBDII code B1267 in a Lexus related to Instrument Panel System Communication Bus Malfunction Short To Ground?

- The repair time can vary based on the complexity of the issue and the availability of parts. Some fixes may take a few hours, while more involved repairs could require a day or longer to complete.

10. Are there any recalls or service bulletins related to OBDII code B1267 in a Lexus for Instrument Panel System Communication Bus Malfunction Short To Ground?

- It is recommended to check with Lexus dealerships or online resources for any recalls or service bulletins related to this specific OBDII code to see if there are known issues or remedies provided by the manufacturer.

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