AutoCodes – MINI – P1186 MINI

P1186 MINI Code - O2 Sensor Heater Control Circuit Bank 1 Sensor 2

Quick Answer

P1186 MINI indicates O2 Sensor Heater Control Circuit Bank 1 Sensor 2. Common causes include Faulty O2 Sensor, O2 Sensor harness is open or shorted, O2 Sensor 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: P1186 MINI indicates O2 Sensor Heater Control Circuit Bank 1 Sensor 2.
Common causes: Common causes include Faulty O2 Sensor, O2 Sensor harness is open or shorted, O2 Sensor 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 1,804

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

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Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1186 MINI Description

OBDII Code P1186 MINI - O2 Sensor Heater Control Circuit Bank 1 Sensor 2 - AutoCodes.com — P1186 MINI Code - O2 Sensor Heater Control Circuit Bank 1 Sensor 2

What does this mean?

What are the Possible Causes of the DTC P1186 MINI?

Faulty O2 Sensor
O2 Sensor harness is open or shorted
O2 Sensor circuit poor electrical connection

How to Fix the DTC P1186 MINI?

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 P1186 MINI 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 P1186 MINI code?

Need more information on how to fix the P1186 MINI code? Get Access to Factory Service Manuals

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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 P1186 MINI Code

1. What are the common symptoms of OBDII code P1186 in a MINI related to the O2 sensor heater control circuit?

The common symptoms include poor fuel economy, rough idling, a decrease in engine performance, and the illumination of the Check Engine Light.

2. What could be causing the O2 sensor heater control circuit Bank 1 Sensor 2 issue in a MINI?

Possible causes of this issue include a faulty O2 sensor, damaged wiring or connectors in the heater circuit, a blown fuse, or a problem with the ECM.

3. How serious is the O2 sensor heater control circuit Bank 1 Sensor 2 problem in a MINI?

While the vehicle may still be drivable with this issue, it is important to address it promptly to prevent potential damage to other components and to ensure optimal engine performance and emissions control.

4. Can I continue driving my MINI with the P1186 O2 sensor heater control circuit fault?

It is generally recommended to avoid driving the vehicle extensively with this fault to prevent potential damage to the catalytic converter and other components. It is best to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose and repair the O2 sensor heater control circuit Bank 1 Sensor 2 problem in my MINI?

Diagnosis typically involves inspecting the O2 sensor and associated wiring for damage, testing the heater circuit, checking fuses, and scanning for any related trouble codes. Repairs may involve replacing the O2 sensor, repairing wiring, or addressing ECM issues.

6. Will resetting the Check Engine Light resolve the P1186 O2 sensor heater control circuit fault in my MINI?

Simply resetting the Check Engine Light will not fix the underlying issue causing the fault code. It is important to diagnose the problem, make necessary repairs, and clear the code using a diagnostic tool.

7. How much does it cost to repair the O2 sensor heater control circuit Bank 1 Sensor 2 problem in a MINI?

The cost of repair can vary depending on the specific cause of the issue, labor rates in your area, and whether you choose to address the problem yourself or take it to a professional mechanic. Costs may include parts and labor.

8. Can a DIY enthusiast fix the P1186 O2 sensor heater control circuit issue in a MINI?

Depending on your experience and access to tools, it is possible to address this issue yourself. However, proper diagnosis and repair are crucial, so it may be best to consult a service manual or seek help from a knowledgeable individual if you are unsure.

9. How long does it typically take to repair the O2 sensor heater control circuit Bank 1 Sensor 2 problem in a MINI?

The repair time can vary based on the specific cause of the issue, the availability of parts, and your level of expertise. It may take a few hours to a day to diagnose and fix the problem.

10. Are there any preventive measures to avoid encountering the P1186 O2 sensor heater control circuit fault in the future?

Regular maintenance, such as inspecting and replacing O2 sensors at recommended intervals, checking for wiring damage, and addressing any related issues promptly, can help prevent the recurrence of this fault in your MINI.