AutoCodes – Generic – P0BCB

P0BCB Code - Hybrid Battery Pack Cooling Fan Sense Circuit Intermittent/Erratic

Quick Answer

The Engine Control Module (ECM) monitors the Hybrid Battery Pack Cooling Fan. Common causes include Faulty Hybrid Battery Pack Cooling Fan, Hybrid Battery Pack Cooling Fan harness is open or shorted, Hybrid Battery Pack Cooling Fan 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: P0BCB indicates Hybrid Battery Pack Cooling Fan Sense Circuit Intermittent/Erratic.
Common causes: Common causes include Faulty Hybrid Battery Pack Cooling Fan, Hybrid Battery Pack Cooling Fan harness is open or shorted, Hybrid Battery Pack Cooling Fan 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 1,721

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 Mar 08, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0BCB Description

The Engine Control Module (ECM) monitors the Hybrid Battery Pack Cooling Fan. The ECM sets the OBDII code when the Hybrid Battery Pack Cooling Fan is not to factory specifications.

OBDII Code P0BCB - Hybrid Battery Pack Cooling Fan Sense Circuit Intermittent/Erratic - AutoCodes.com — P0BCB Code - Hybrid Battery Pack Cooling Fan Sense Circuit Intermittent/Erratic

What does this mean?

What are the Possible Causes of the DTC P0BCB?

Faulty Hybrid Battery Pack Cooling Fan
Hybrid Battery Pack Cooling Fan harness is open or shorted
Hybrid Battery Pack Cooling Fan circuit poor electrical connection

How to Fix the DTC P0BCB?

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 P0BCB 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 P0BCB code?

Need more information on how to fix the P0BCB code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0BCB 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 P0BCB Code

1. What does the OBDII code P0BCB mean?

The P0BCB code indicates an issue with the hybrid battery pack cooling fan sense circuit, showing intermittent or erratic behavior.

2. What are the common symptoms of the P0BCB code?

Symptoms may include reduced hybrid system performance, overheating of the battery pack, warning lights on the dashboard, or unusual fan operation.

3. What causes the P0BCB code?

Causes can include a malfunctioning cooling fan, damaged wiring or connectors in the cooling fan circuit, or a faulty hybrid battery pack control module.

4. Can driving with a P0BCB code damage the vehicle?

Yes, driving with this code can lead to overheating of the hybrid battery, which may cause long-term damage to the battery and affect vehicle performance.

5. How do I fix the P0BCB code?

Repairs may involve inspecting and replacing damaged wiring, connectors, or the cooling fan, and in some cases, reprogramming or replacing the hybrid control module.

6. How is the P0BCB code diagnosed?

Diagnosis includes visually inspecting the cooling fan and its wiring, testing the fan operation, and using a scan tool to monitor hybrid system data.

7. Can a bad cooling fan cause the P0BCB code?

Yes, a malfunctioning cooling fan can lead to erratic or intermittent signals in the sense circuit, triggering this code.

8. Is the P0BCB code specific to certain vehicles?

This code is more common in hybrid vehicles, as it relates to the hybrid battery pack cooling system.

9. Will clearing the P0BCB code solve the problem?

Clearing the code may temporarily turn off the warning light, but the underlying issue must be repaired to prevent the code from returning.

10. How much does it cost to repair the P0BCB code?

Repair costs depend on the exact cause, ranging from $50 for simple wiring fixes to several hundred dollars for cooling fan or control module replacement.