AutoCodes – Chevrolet – P15BA Chevrolet

P15BA Chevrolet Code - Electric A/C Compressor Control Module Ignition On/Start Switch Circuit High Voltage

Quick Answer

The Body Control Module (BCM) controls the ignition run relay through the control circuit by applying voltage to the circuit. Common causes include Faulty Hybrid Powertrain Control Module 2, Hybrid Powertrain Control Module 2 harness is open or shorted, Hybrid Powertrain Control Module 2 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: P15BA Chevrolet indicates Electric A/C Compressor Control Module Ignition On/Start Switch Circuit High Voltage.
Common causes: Common causes include Faulty Hybrid Powertrain Control Module 2, Hybrid Powertrain Control Module 2 harness is open or shorted, Hybrid Powertrain Control Module 2 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 1,121

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 Jan 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P15BA Chevrolet Description

The Body Control Module (BCM) controls the ignition run relay through the control circuit by applying voltage to the circuit. The ignition circuit is energized when the vehicle power mode is Vehicle ON or Vehicle in Service Mode. The hybrid powertrain control module 2 sends the vehicle power mode status in a serial data message to the battery charger control module, A/C compressor, battery energy control module, fuel pump control module and the Transmission Control Module (TCM).

OBDII Code P15BA Chevrolet - Electric A/C Compressor Control Module Ignition On/Start Switch Circuit High Voltage - AutoCodes.com — P15BA Chevrolet Code - Electric A/C Compressor Control Module Ignition On/Start Switch Circuit High Voltage

What does this mean?

What are the Possible Causes of the DTC P15BA Chevrolet?

Faulty Hybrid Powertrain Control Module 2
Hybrid Powertrain Control Module 2 harness is open or shorted
Hybrid Powertrain Control Module 2 circuit poor electrical connection

How to Fix the DTC P15BA Chevrolet?

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 P15BA Chevrolet 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.

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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 P15BA Chevrolet Code

1. What does the OBDII code P15BA mean on a Chevrolet?

P15BA indicates a problem with the Electric A/C Compressor Control Module, specifically related to the Ignition On/Start Switch Circuit experiencing high voltage.

2. What are the common symptoms of the P15BA code?

Symptoms may include the A/C not functioning, the check engine light turning on, reduced cooling performance, or unusual noises from the electric A/C compressor.

3. What causes the P15BA code to appear?

Common causes include a faulty electric A/C compressor control module, damaged wiring or connectors, a short circuit, or a malfunctioning ignition/start switch.

4. Can I drive my Chevrolet with a P15BA code?

While the vehicle may still be drivable, the A/C system may not work properly, and ignoring the issue could lead to further electrical damage.

5. How do you diagnose the P15BA code?

A technician will inspect the control module, test the wiring and connectors for damage or shorts, and use a scan tool to monitor circuit voltage.

6. How is the P15BA code typically repaired?

Repairs may involve replacing the electric A/C compressor control module, fixing damaged wiring or connectors, or addressing issues with the ignition/start switch.

7. Is the P15BA code specific to Chevrolet vehicles?

While the code is most commonly associated with Chevrolet models, it can also appear on other vehicles with similar electric A/C systems.

8. What tools are needed to fix the P15BA code?

A diagnostic scan tool, a multimeter to check voltage and continuity, and automotive wiring repair tools are typically required.

9. Can a blown fuse cause the P15BA code?

Yes, a blown fuse in the A/C compressor circuit could potentially trigger the code, as it may disrupt proper voltage flow.

10. How much does it cost to fix the P15BA code on a Chevrolet?

Repair costs can vary but typically range between $200 and $1,000, depending on whether the issue is wiring-related or requires control module replacement.