AutoCodes – Infiniti – B27D1 Infiniti

B27D1 Infiniti Code - Starter Cut Relay Off Stuck

Quick Answer

The Diagnostic Trouble Code (DTC) sets when comparing the starter cut relay signal (CAN) from Intelligent Power Distribution Module Engine Room (IPDM E/R), Body Control Module (BCM) detects that starter cut relay is stuck in the OFF position for 1 second or more. Common causes include Faulty Starter Cut Relay, Starter Cut Relay harness is open or shorted, Starter Cut Relay 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: B27D1 Infiniti indicates Starter Cut Relay Off Stuck.
Common causes: Common causes include Faulty Starter Cut Relay, Starter Cut Relay harness is open or shorted, Starter Cut Relay 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 781

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 Feb 10, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B27D1 Infiniti Description

OBDII Code B27D1 Infiniti - Starter Cut Relay Off Stuck - AutoCodes.com — B27D1 Infiniti Code - Starter Cut Relay Off Stuck

What does this mean?

What are the Possible Causes of the DTC B27D1 Infiniti?

Faulty Starter Cut Relay
Starter Cut Relay harness is open or shorted
Starter Cut Relay circuit poor electrical connection
Faulty Body Control Module (BCM)
Faulty Intelligent Power Distribution Module Engine Room (IPDM E/R)

How to Fix the DTC B27D1 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 B27D1 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 B27D1 Infiniti code?

Need more information on how to fix the B27D1 Infiniti code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B27D1 Infiniti code diagnosed by a professional: Find a repair shop in your area

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 B27D1 Infiniti Code

1. What are the common symptoms of OBDII code B27D1 Infiniti (Starter Cut Relay Off Stuck)?

- Common symptoms include difficulty starting the vehicle, engine not cranking, and the ignition not turning on.

2. What can cause the OBDII code B27D1 in an Infiniti?

- The code B27D1 in an Infiniti is typically caused by a malfunctioning starter cut relay or issues with the starter circuit.

3. How can I diagnose the starter cut relay in my Infiniti if it's stuck off?

- To diagnose the starter cut relay, you can use a multimeter to test for continuity and voltage. Check the relay for proper operation and ensure it is receiving power.

4. What are some repair tips for fixing the starter cut relay off stuck issue in an Infiniti?

- Repair tips include checking and replacing the starter cut relay if necessary, inspecting the wiring for any damage, and ensuring all connections are secure.

5. Can a faulty ignition switch cause the OBDII code B27D1 in an Infiniti?

- Yes, a faulty ignition switch can potentially cause the starter cut relay to remain off, triggering the B27D1 code.

6. How important is it to address the OBDII code B27D1 in an Infiniti promptly?

- It is important to address the B27D1 code promptly as it can lead to starting issues and potentially leave you stranded if the vehicle fails to start.

7. Can I reset the OBDII code B27D1 in my Infiniti by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is recommended to diagnose and address the root cause of the issue to prevent it from recurring.

8. Is it safe to continue driving my Infiniti with the starter cut relay off stuck issue?

- It is not recommended to drive your vehicle with the starter cut relay off stuck issue as it can lead to unreliable starting and potential safety hazards.

9. Will replacing the starter motor fix the OBDII code B27D1 in an Infiniti?

- Replacing the starter motor is unlikely to fix the B27D1 code unless the starter itself is causing the relay to remain off. It is best to diagnose the issue accurately before replacing any parts.

10. How can a professional mechanic help me resolve the OBDII code B27D1 in my Infiniti?

- A professional mechanic can perform a thorough diagnosis using specialized tools, pinpoint the exact cause of the issue, and provide expert repair solutions to fix the B27D1 code effectively.