AutoCodes – Infiniti – B26FA Infiniti

B26FA Infiniti Code - Cranking Request Circuit Open

Quick Answer

The Diagnostic Trouble Code (DTC) sets when the Body Control Module (BCM) detects that the status of the following signals does not match: Cranking request signal from Engine Control Module (ECM) and Starter control relay control signal from ECM (CAN). Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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: B26FA Infiniti indicates Cranking Request Circuit Open.
Common causes: Common causes include Faulty Engine Control Module (ECM), Engine Control Module (ECM) harness is open or shorted, Engine Control Module (ECM) 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 611

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Jan 22, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B26FA Infiniti Description

OBDII Code B26FA Infiniti - Cranking Request Circuit Open - AutoCodes.com — B26FA Infiniti Code - Cranking Request Circuit Open

What does this mean?

What are the Possible Causes of the DTC B26FA Infiniti?

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

How to Fix the DTC B26FA 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 B26FA 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 B26FA Infiniti code?

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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 B26FA Infiniti Code

1. What are the common symptoms of OBDII code B26FA in an Infiniti related to the Cranking Request Circuit Open?

- Common symptoms include difficulty starting the vehicle, engine cranking but not starting, and potential stalling while driving.

2. What can cause the Cranking Request Circuit Open code B26FA in an Infiniti?

- Possible causes include a faulty crankshaft position sensor, damaged wiring or connectors in the cranking circuit, or a malfunctioning engine control module (ECM).

3. How can I diagnose the Cranking Request Circuit Open issue in my Infiniti?

- Diagnosing this issue typically involves using a scan tool to read the OBDII code, checking the connections and wiring in the cranking circuit, and testing the crankshaft position sensor for proper operation.

4. Is it safe to continue driving my Infiniti with the B26FA code indicating a Cranking Request Circuit Open?

- It is not recommended to drive the vehicle with this code present, as it can lead to potential starting and performance issues that may leave you stranded.

5. Can I repair the Cranking Request Circuit Open problem in my Infiniti myself?

- Depending on your automotive repair knowledge and experience, you may be able to address this issue yourself by inspecting the wiring, connectors, and sensor involved, but professional assistance is recommended for accurate diagnosis and repair.

6. How much does it typically cost to repair the B26FA code related to the Cranking Request Circuit Open in an Infiniti?

- The cost of repairs can vary depending on the specific cause of the issue, but it may involve replacing a faulty sensor, repairing damaged wiring, or reprogramming the ECM, with costs ranging from a few hundred to over a thousand dollars.

7. Can a low battery voltage trigger the B26FA code in an Infiniti?

- Yes, low battery voltage can sometimes cause issues with the cranking circuit and trigger the B26FA code, so it's a good idea to ensure your vehicle's battery is in good condition.

8. How can I prevent the B26FA code from appearing again in my Infiniti after repair?

- Regular maintenance, such as checking and replacing worn-out sensors, keeping the wiring in good condition, and ensuring proper battery voltage, can help prevent the recurrence of the Cranking Request Circuit Open issue.

9. Will resetting the OBDII code on my Infiniti make the B26FA problem go away?

- Resetting the code may temporarily clear the check engine light, but it will not fix the underlying issue causing the Cranking Request Circuit Open problem. Proper diagnosis and repair are necessary to address the root cause.

10. Is the B26FA code specific to certain Infiniti models, or can it occur in various models within the brand?

- The B26FA code related to the Cranking Request Circuit Open can occur in various Infiniti models, so it's essential to diagnose the specific cause based on the vehicle's symptoms and components involved.