AutoCodes – Cadillac – P1E16 Cadillac

P1E16 Cadillac Code - Drive Motor 1 Control Module 5 Volt Reference 2 Circuit

Quick Answer

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter Module 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: P1E16 Cadillac indicates Drive Motor 1 Control Module 5 Volt Reference 2 Circuit.
Common causes: Common causes include Faulty Power Inverter Module, Power Inverter Module harness is open or shorted, Power Inverter Module 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 718

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 Apr 23, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1E16 Cadillac Description

The power inverter module, often referred to as the drive motor generator power inverter module, contains three motor control modules and the hybrid powertrain control module. Two of the motor control modules operate their respective drive motor generator based upon power inverter module commands. The third motor control module controls the auxiliary transmission fluid pump motor. Each motor control module utilizes a 5 V reference power supply for internal circuit needs. This fault is handled inside the power inverter module and no external circuits are involved. The motor control modules and the hybrid powertrain control module are part of the power inverter module and are not serviced separately.

OBDII Code P1E16 Cadillac - Drive Motor 1 Control Module 5 Volt Reference 2 Circuit - AutoCodes.com — P1E16 Cadillac Code - Drive Motor 1 Control Module 5 Volt Reference 2 Circuit

What does this mean?

What are the Possible Causes of the DTC P1E16 Cadillac?

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

How to Fix the DTC P1E16 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 P1E16 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 P1E16 Cadillac Code

1. What are the common symptoms of OBDII code P1E16 in a Cadillac related to Drive Motor 1 Control Module 5 Volt Reference 2 Circuit?

- Common symptoms include poor engine performance, stalling, rough idle, and an illuminated check engine light.

2. What are the possible causes of OBDII code P1E16 in a Cadillac?

- Possible causes include a faulty drive motor control module, damaged wiring or connectors, a short circuit, or a failed 5 volt reference circuit.

3. How can I diagnose OBDII code P1E16 related to Drive Motor 1 Control Module in my Cadillac?

- You can diagnose the issue by using an OBDII scanner to retrieve the specific fault code, inspecting the wiring and connectors for any damage, and testing the drive motor control module and related components.

4. Can I drive my Cadillac with OBDII code P1E16 present?

- It is not recommended to drive your Cadillac with this code present, as it can lead to further engine damage or safety issues. It's best to address the issue promptly.

5. What are some repair tips for fixing OBDII code P1E16 in a Cadillac?

- Repair tips include checking and repairing any damaged wiring or connectors, replacing the drive motor control module if faulty, and ensuring proper voltage is reaching the components.

6. Is resetting the OBDII code P1E16 in my Cadillac enough to fix the issue?

- Resetting the code may temporarily turn off the check engine light, but it will not fix the underlying issue causing the fault code. Proper diagnosis and repair are necessary.

7. How much does it typically cost to repair OBDII code P1E16 in a Cadillac?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

8. Can a DIY enthusiast fix OBDII code P1E16 in a Cadillac?

- Depending on your level of automotive knowledge and experience, some DIY enthusiasts may be able to diagnose and repair this code themselves. However, it's recommended to consult a professional if unsure.

9. Will OBDII code P1E16 cause my Cadillac to fail an emissions test?

- Yes, this code can cause your Cadillac to fail an emissions test due to emissions-related issues resulting from the drive motor control module and 5 volt reference circuit problem.

10. How urgent is it to address OBDII code P1E16 in my Cadillac?

- It is important to address this code promptly to prevent further engine damage, potential safety hazards, and to ensure your vehicle operates efficiently.