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P1ADD Cadillac Code - Drive Motor 2 Control Module Long Term Memory Performance

Quick Answer

The drive motor control modules are internal to the Power Inverter Module, often referred to as the drive motor-generator Power Inverter Module, and are not serviced separately. Common causes include Faulty Power Inverter Module (PIM), Power Inverter Module (PIM) harness is open or shorted, Power Inverter Module (PIM) 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: P1ADD Cadillac indicates Drive Motor 2 Control Module Long Term Memory Performance.
Common causes: Common causes include Faulty Power Inverter Module (PIM), Power Inverter Module (PIM) harness is open or shorted, Power Inverter Module (PIM) 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 906

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 Aug 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1ADD Cadillac Description

The drive motor control modules are internal to the Power Inverter Module, often referred to as the drive motor-generator Power Inverter Module, and are not serviced separately. This fault is handled inside the drive motor control modules and no external circuits are involved. The Diagnostic Trouble Code (DTC) will set when the Power Inverter Module has detected an internal malfunction, or a service module has been installed but not yet programmed.

OBDII Code P1ADD Cadillac - Drive Motor 2 Control Module Long Term Memory Performance - AutoCodes.com — P1ADD Cadillac Code - Drive Motor 2 Control Module Long Term Memory Performance

What does this mean?

What are the Possible Causes of the DTC P1ADD Cadillac?

Faulty Power Inverter Module (PIM)
Power Inverter Module (PIM) harness is open or shorted
Power Inverter Module (PIM) circuit poor electrical connection

How to Fix the DTC P1ADD 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 P1ADD 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 P1ADD Cadillac Code

1. What does the OBDII code P1ADD mean on a Cadillac?

P1ADD indicates an issue with the Drive Motor 2 Control Module's long-term memory performance, which may affect hybrid or electric vehicle systems.

2. What are the common symptoms of the P1ADD code?

Symptoms include reduced vehicle performance, illuminated check engine light, limited hybrid/electric drivetrain functionality, or difficulty starting the vehicle.

3. What causes the P1ADD code to appear?

Common causes include software corruption in the Drive Motor 2 Control Module, power interruptions, faulty wiring, or internal module failure.

4. Can I drive my Cadillac with a P1ADD code?

Driving with a P1ADD code may be possible, but it is not recommended as it could lead to further drivetrain issues or reduced vehicle performance.

5. How is the P1ADD code diagnosed?

A technician will use a scan tool to confirm the code, check for related codes, inspect wiring and connectors, and test the Drive Motor 2 Control Module's functionality.

6. What repairs are needed to fix the P1ADD code?

Repairs may include reprogramming or updating the control module software, repairing wiring or connectors, or replacing the Drive Motor 2 Control Module if necessary.

7. How much does it cost to fix a P1ADD code on a Cadillac?

Repair costs vary depending on the issue, but reprogramming or software updates are typically less expensive than replacing the control module, which can cost several hundred dollars.

8. Can a dead battery cause the P1ADD code?

Yes, a dead or weak battery can disrupt the module's memory and trigger the P1ADD code.

9. How can I prevent the P1ADD code from recurring?

To prevent recurrence, ensure the battery and charging system are in good condition, perform regular maintenance, and address electrical issues promptly.

10. Does the P1ADD code require a software update?

In many cases, a software update or reprogramming of the Drive Motor 2 Control Module can resolve the issue, so it is often recommended as a first step.