AutoCodes – Lexus – B1552 Lexus

B1552 Lexus Code - Extension Module Malfunction

Quick Answer

The Diagnostic Trouble Code (DTC) is stored when a malfunction occurs in the Radio and Display Receiver Assembly. Common causes include Faulty Radio and Display Receiver Assembly, Radio and Display Receiver Assembly harness is open or shorted, Radio and Display Receiver Assembly 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: B1552 Lexus indicates Extension Module Malfunction.
Common causes: Common causes include Faulty Radio and Display Receiver Assembly, Radio and Display Receiver Assembly harness is open or shorted, Radio and Display Receiver Assembly 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.

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Code Popularity 846

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1552 Lexus Description

The Diagnostic Trouble Code (DTC) is stored when a malfunction occurs in the Radio and Display Receiver Assembly.

OBDII Code B1552 Lexus - Extension Module Malfunction - AutoCodes.com — B1552 Lexus Code - Extension Module Malfunction

What does this mean?

What are the Possible Causes of the DTC B1552 Lexus?

Faulty Radio and Display Receiver Assembly
Radio and Display Receiver Assembly harness is open or shorted
Radio and Display Receiver Assembly circuit poor electrical connection

How to Fix the DTC B1552 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 B1552 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.

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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 B1552 Lexus Code

1. What are the common symptoms of OBDII code B1552 in a Lexus related to Extension Module Malfunction?

- Common symptoms include issues with power door locks, power windows, or other electronic features controlled by the extension module.

2. What are the possible causes of OBDII code B1552 in a Lexus indicating Extension Module Malfunction?

- The code may be triggered due to a faulty extension module, damaged wiring in the module circuit, or a communication error with the module.

3. How can I diagnose the Extension Module Malfunction causing OBDII code B1552 in my Lexus?

- Diagnosis typically involves inspecting the extension module, checking the wiring for any damage, and using a scan tool to retrieve detailed diagnostic information.

4. Can a DIY enthusiast repair OBDII code B1552 in a Lexus related to Extension Module Malfunction?

- While some basic troubleshooting like checking fuses and wiring can be done by enthusiasts, repairing the extension module or related components may require professional expertise.

5. Is it safe to continue driving my Lexus with OBDII code B1552 due to an Extension Module Malfunction?

- It is not recommended to drive the vehicle with this code unresolved, as it may lead to further electrical issues or malfunctions in the affected systems.

6. How costly is it to repair OBDII code B1552 related to Extension Module Malfunction in a Lexus?

- The cost of repair can vary based on the underlying cause, but it may involve replacing the extension module, repairing wiring, or addressing communication issues, which could range from moderate to expensive.

7. Can resetting the OBDII code B1552 related to Extension Module Malfunction in a Lexus fix the issue temporarily?

- Resetting the code may temporarily clear the error, but if the root cause is not addressed, the code is likely to reappear once the system detects the ongoing issue.

8. Are there any preventive measures to avoid OBDII code B1552 in a Lexus due to Extension Module Malfunction?

- Regular maintenance checks, addressing any electrical issues promptly, and ensuring proper handling of the vehicle's electronic systems can help prevent such codes from occurring.

9. Will disconnecting the battery reset the OBDII code B1552 related to Extension Module Malfunction in my Lexus?

- Disconnecting the battery may clear the code temporarily, but it is not a permanent solution. It is essential to diagnose and fix the underlying issue causing the code.

10. Can a faulty battery or alternator cause OBDII code B1552 in a Lexus indicating Extension Module Malfunction?

- While a faulty battery or alternator may indirectly affect electrical systems, OBDII code B1552 is more likely related to issues specific to the extension module or its components.