AutoCodes – Cadillac – P1A04 Cadillac

P1A04 Cadillac Code - Battery Energy Control Module Programming Read Only Memory

Quick Answer

The Battery Energy Control Module (BECM) will diagnose its own systems and determine when a fault condition is present. Common causes include Faulty Battery Energy Control Module (BECM), Battery Energy Control Module (BECM) harness is open or shorted, Battery Energy Control Module (BECM) 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: P1A04 Cadillac indicates Battery Energy Control Module Programming Read Only Memory.
Common causes: Common causes include Faulty Battery Energy Control Module (BECM), Battery Energy Control Module (BECM) harness is open or shorted, Battery Energy Control Module (BECM) 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 1,139

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 Feb 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1A04 Cadillac Description

The Battery Energy Control Module (BECM) will diagnose its own systems and determine when a fault condition is present. Diagnostics and system status is communicated from the battery energy control module to the hybrid powertrain control module through serial data. The hybrid powertrain control module is the host controller for diagnostic trouble code (DTC) information. The EBECM monitors to detect an Random Access Memory (RAM), Read Only Memory (ROM), Erasable Programmable Read-Only Memory (EPROM) or controller stack overrun. The EBECM sets the OBDII code when the RAM, ROM, EPROM or controller stack overrun is not to factory specifications.
This diagnostic applies to internal microprocessor integrity conditions within the battery energy control module. This fault is internal to the battery energy control module and no external circuits are involved.

OBDII Code P1A04 Cadillac - Battery Energy Control Module Programming Read Only Memory - AutoCodes.com — P1A04 Cadillac Code - Battery Energy Control Module Programming Read Only Memory

What does this mean?

What are the Possible Causes of the DTC P1A04 Cadillac?

Faulty Battery Energy Control Module (BECM)
Battery Energy Control Module (BECM) harness is open or shorted
Battery Energy Control Module (BECM) circuit poor electrical connection

How to Fix the DTC P1A04 Cadillac?

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 P1A04 Cadillac 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 P1A04 Cadillac Code

1. What is the OBDII code P1A04 for a Cadillac?

The OBDII code P1A04 for a Cadillac refers to an issue with the Battery Energy Control Module's Programming Read Only Memory (PROM).

2. What are common symptoms of the P1A04 code in a Cadillac?

Common symptoms of the P1A04 code in a Cadillac may include poor battery performance, reduced fuel efficiency, and potential drivability issues.

3. What are possible causes of the P1A04 code in a Cadillac?

Possible causes of the P1A04 code in a Cadillac include a faulty Battery Energy Control Module, issues with the PROM programming, or electrical connection problems.

4. How can I diagnose the P1A04 code in my Cadillac?

Diagnosing the P1A04 code in your Cadillac typically involves using an OBDII scanner to retrieve the specific fault code and then further inspection to identify the underlying cause.

5. Is it safe to continue driving with the P1A04 code in my Cadillac?

It is not recommended to continue driving with the P1A04 code present in your Cadillac, as it can lead to further damage and potential safety risks.

6. Can I reset the P1A04 code in my Cadillac on my own?

While you may be able to clear the P1A04 code temporarily by resetting the vehicle's ECU, it is crucial to address the root cause of the issue to prevent it from recurring.

7. How can I repair the P1A04 code in my Cadillac?

Repairing the P1A04 code in your Cadillac may involve reprogramming the Battery Energy Control Module's Read Only Memory or replacing the module if necessary.

8. Are there any DIY tips for addressing the P1A04 code in my Cadillac?

DIY tips for addressing the P1A04 code in your Cadillac may include checking the module's connections, ensuring proper battery voltage, and following manufacturer guidelines for programming.

9. How much does it cost to fix the P1A04 code in a Cadillac?

The cost of fixing the P1A04 code in a Cadillac can vary depending on the specific issue, repair needed, and labor rates in your area. It is recommended to consult a professional for an accurate estimate.

10. Can the P1A04 code in a Cadillac cause long-term damage if left unresolved?

If left unresolved, the P1A04 code in a Cadillac can potentially lead to long-term damage to the vehicle's electrical system, battery performance, and overall drivability. It is essential to address the issue promptly.