AutoCodes – Infiniti – B2193 Infiniti

B2193 Infiniti Code - Chain Of ECM-IMMU

Quick Answer

The Body Control Module (BCM) performs the ID verification with the Engine Control Module (ECM) that allows the engine to start. Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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: B2193 Infiniti indicates Chain Of ECM-IMMU.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) 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 9,446

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 Sep 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2193 Infiniti Description

The Body Control Module (BCM) performs the ID verification with the Engine Control Module (ECM) that allows the engine to start. Start the engine if the ID is OK. The ECM prevents the engine from starting if the ID is not registered. BCM starts the communication with ECM if the ignition switch is turned ON. The OBDII code is set when there is an inactive communication between ECM and BCM.

OBDII Code B2193 Infiniti - Chain Of ECM-IMMU - AutoCodes.com — B2193 Infiniti Code - Chain Of ECM-IMMU

What does this mean?

What are the Possible Causes of the DTC B2193 Infiniti?

Faulty Body Control Module (BCM)
Body Control Module (BCM) harness is open or shorted
Body Control Module (BCM) circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC B2193 Infiniti?

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 B2193 Infiniti 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 B2193 Infiniti code?

Need more information on how to fix the B2193 Infiniti code? Get Access to Factory Service Manuals

Need Help with the 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 B2193 Infiniti Code

1. What are common symptoms of OBDII code B2193 Infiniti (Chain Of ECM-IMMU)?

Common symptoms include the inability to start the vehicle, intermittent starting issues, and the engine stalling while driving.

2. What are the possible causes of OBDII code B2193 in an Infiniti related to the Chain Of ECM-IMMU?

The code B2193 in an Infiniti is often caused by a communication error between the Engine Control Module (ECM) and the Immobilizer Control Module (IMMU).

3. How can I diagnose the OBDII code B2193 in my Infiniti?

Diagnosing OBDII code B2193 typically involves checking the wiring and connections between the ECM and IMMU, as well as scanning for any other related trouble codes.

4. Can I drive my Infiniti with the OBDII code B2193?

It is not recommended to drive your Infiniti with the OBDII code B2193 as it may lead to potential starting or stalling issues, posing a safety risk.

5. How can I reset the OBDII code B2193 in my Infiniti?

Resetting the code B2193 in your Infiniti may require using a diagnostic scanner to clear the code after addressing the underlying communication issue between the ECM and IMMU.

6. Is it safe to ignore the OBDII code B2193 in my Infiniti?

Ignoring the OBDII code B2193 in your Infiniti can lead to more severe starting or stalling problems, potentially leaving you stranded on the road.

7. Can a DIY enthusiast repair the OBDII code B2193 in an Infiniti?

Repairing the OBDII code B2193 in an Infiniti related to the Chain Of ECM-IMMU may require advanced diagnostic tools and knowledge, making it more suitable for professional mechanics.

8. How much does it cost to repair the OBDII code B2193 in an Infiniti?

The cost of repairing the OBDII code B2193 in an Infiniti can vary depending on the underlying issue, but it may involve replacing faulty components or repairing damaged wiring.

9. Are there any preventive measures to avoid OBDII code B2193 in an Infiniti?

Regularly maintaining your Infiniti, keeping the electrical system in good condition, and addressing any warning signs promptly can help prevent issues leading to the OBDII code B2193.

10. Does the OBDII code B2193 affect the overall performance of an Infiniti?

Yes, the OBDII code B2193 can affect the overall performance of an Infiniti by causing starting, stalling, or drivability issues due to communication problems between the ECM and IMMU.