AutoCodes – Generic – B27D1

B27D1 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 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 1,879

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 Description

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

What does this mean?

What are the Possible Causes of the DTC B27D1?

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?

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 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 code?

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

Need Help with the Code?

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

Information for Specific Makes

B27D1 Infiniti — Starter Cut Relay Off Stuck
B27D1 Nissan — Starter Cut Relay Off Stuck

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 Code

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

- Common symptoms include the vehicle not starting, intermittent starting issues, and the engine not cranking.

2. What can cause the OBDII code B27D1 to trigger?

- The code B27D1 may be triggered due to a faulty starter cut relay, a malfunctioning ignition switch, wiring issues, or a defective engine control module.

3. How can I diagnose the cause of the Starter Cut Relay Off Stuck code?

- Diagnosis involves checking the starter cut relay, testing the ignition switch, inspecting the wiring for damage, and scanning the engine control module for related fault codes.

4. What are the repair options for fixing OBDII code B27D1?

- Repair options include replacing the faulty starter cut relay, repairing or replacing the ignition switch, repairing damaged wiring, or reprogramming the engine control module as necessary.

5. Can I drive my vehicle with the OBDII code B27D1 present?

- It is not recommended to drive the vehicle with the B27D1 code present, as it may result in starting issues or potential safety hazards while driving.

6. Is it possible to reset the OBDII code B27D1 without fixing the underlying issue?

- Resetting the code without addressing the underlying issue may temporarily clear the code, but the problem will likely resurface until the root cause is repaired.

7. How much does it typically cost to repair OBDII code B27D1?

- The cost of repairing the B27D1 code can vary depending on the specific cause of the issue, but it may range from a few hundred to a few thousand dollars for parts and labor.

8. Can a DIY enthusiast fix the OBDII code B27D1 themselves?

- Depending on the individual's mechanical skills and access to tools, some DIY enthusiasts may be able to diagnose and repair the B27D1 code themselves, especially if the issue is related to a simple fix like a relay replacement.

9. Are there any preventive measures to avoid OBDII code B27D1 in the future?

- Performing regular maintenance checks on the vehicle's starting system, ensuring proper electrical connections, and addressing any starting issues promptly can help prevent the occurrence of the B27D1 code.

10. Will the OBDII code B27D1 cause my vehicle to fail an emissions test?

- A vehicle with the B27D1 code may fail an emissions test, as starting issues can impact the overall performance of the engine and emissions control systems. It is advisable to address the code before undergoing an emissions test.