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P1E30 Cadillac Code - Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit Low Voltage

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 Program Power Inverter Module, Faulty Power Inverter Module, Power Inverter Module harness is open or shorted. 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: P1E30 Cadillac indicates Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit Low Voltage.
Common causes: Common causes include Program Power Inverter Module, Faulty Power Inverter Module, Power Inverter Module harness is open or shorted.
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 993

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 P1E30 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. This is an internal fault detection of the power inverter module. This fault is handled inside the power inverter module and no external circuits are involved.
Each motor control module operates its respective drive motor based upon hybrid powertrain control module commands. Each motor control module controls its respective motor through the sequencing actuation of high-current switching transistors called insulated gate bipolar transistors. Each motor operates utilising 3-phase alternating current AC electricity. Each insulated gate bipolar transistor operates a single phase of the drive motor generator. Each phase is individually identified as U, V and W. Each motor control module monitors the current of each phase in order to detect out of range current conditions.
Because each individual motor's phase circuits are electrically joined together, the phases normally flow about the same amount of current. The motor control module performs a mathematical calculation to verify that the phase current sensors are accurate. If the U-V-W phase current sensors indicate about the same amount of phase current, the sum of the calculation should be near zero. If the U-V-W phase currents are not similar, this DTC will set.

OBDII Code P1E30 Cadillac - Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit Low Voltage - AutoCodes.com — P1E30 Cadillac Code - Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit Low Voltage

What does this mean?

What are the Possible Causes of the DTC P1E30 Cadillac?

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

How to Fix the DTC P1E30 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 P1E30 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 P1E30 Cadillac Code

1. What are the common symptoms of OBDII code P1E30 in a Cadillac related to the Auxiliary Transmission Fluid Pump Phase W Current Sensor Circuit Low Voltage?

- Common symptoms include issues with shifting gears, transmission slipping, reduced fuel efficiency, and the illumination of the Check Engine Light.

2. What are the possible causes of OBDII code P1E30 in a Cadillac?

- The code P1E30 in a Cadillac can be triggered by issues such as a faulty auxiliary transmission fluid pump, damaged wiring or connectors in the current sensor circuit, low transmission fluid levels, or a malfunctioning current sensor.

3. How can I diagnose the problem related to OBDII code P1E30 in my Cadillac?

- Diagnosing the issue involves conducting a thorough inspection of the auxiliary transmission fluid pump, checking the current sensor circuit for any faults, ensuring proper transmission fluid levels, and using an OBDII scanner to read and interpret the trouble code.

4. Is it safe to continue driving my Cadillac with the OBDII code P1E30 triggered?

- It is not recommended to drive your Cadillac with the P1E30 code illuminated, as it can lead to further damage to the transmission system and potentially result in unsafe driving conditions.

5. How can I repair OBDII code P1E30 in my Cadillac?

- Repairing the P1E30 code may involve replacing the auxiliary transmission fluid pump, repairing any damaged wiring or connectors in the current sensor circuit, ensuring proper transmission fluid levels, and clearing the trouble code with an OBDII scanner.

6. Can I reset the OBDII code P1E30 in my Cadillac without fixing the underlying issue?

- While it is possible to reset the trouble code temporarily, the underlying issue causing the P1E30 code will persist, leading to the code being triggered again if the problem is not addressed.

7. Are there any preventative maintenance tips to avoid OBDII code P1E30 in a Cadillac?

- Regularly checking and maintaining proper transmission fluid levels, inspecting the auxiliary transmission fluid pump, and addressing any transmission-related issues promptly can help prevent the occurrence of the P1E30 trouble code.

8. How much does it typically cost to repair OBDII code P1E30 in a Cadillac?

- The cost of repairing the P1E30 code in a Cadillac can vary depending on the underlying issue, parts needed for replacement, and labor costs. It is recommended to consult with a professional mechanic for an accurate estimate.

9. Can a DIY enthusiast fix the OBDII code P1E30 in a Cadillac?

- While some aspects of addressing the P1E30 code may be within reach for DIY enthusiasts, it is recommended to seek professional help for complex transmission system repairs to ensure proper diagnosis and resolution of the issue.

10. How long does it take to repair OBDII code P1E30 in a Cadillac?

- The duration of the repair process for the P1E30 trouble code can vary depending on the extent of the issue, availability of parts, and the expertise of the mechanic. It is advisable to consult with a professional for an estimated timeline.