P1E28 Code - Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery System 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
- P1E28 indicates Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery System 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.
Code P1E28 Description
What are the Possible Causes of the DTC P1E28?
- 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 P1E28?
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 P1E28 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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Information for Specific Makes
- P1E28 Acura — Brake Fluid Pressure Sensor PU Circuit Low Voltage
- P1E28 Buick — Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery System Voltage
- P1E28 Cadillac — Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery System Voltage
- P1E28 Chevrolet — Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery System Voltage
- P1E28 GMC — Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery System Voltage
- P1E28 Honda — Brake Fluid Pressure Sensor PU Circuit Low Voltage
- P1E28 Saturn — Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery System Voltage
Frequently Asked Questions about P1E28 Code
1. What are common symptoms of OBDII code P1E28?
- Common symptoms include reduced performance, decreased fuel efficiency, and potential issues with the transmission system.
2. What causes OBDII code P1E28 to trigger?
- This code is typically triggered by a malfunction in the auxiliary transmission fluid pump control module or issues related to the hybrid/EV battery system voltage.
3. How can I diagnose the cause of OBDII code P1E28?
- A thorough inspection of the auxiliary transmission fluid pump control module and the hybrid/EV battery system voltage will help diagnose the issue. It is recommended to use a diagnostic scanner to retrieve specific fault codes.
4. What are the repair options for OBDII code P1E28?
- Repair options may include replacing the faulty auxiliary transmission fluid pump control module or addressing issues with the hybrid/EV battery system voltage. Consult with a professional mechanic for an accurate diagnosis and repair plan.
5. Can I continue driving with OBDII code P1E28 present?
- It is not advisable to continue driving with this code present, as it can lead to further damage to the transmission system and potentially affect the overall performance of the vehicle.
6. How much does it typically cost to repair OBDII code P1E28?
- The cost of repairing OBDII code P1E28 can vary depending on the extent of the issue and the specific repairs needed. It is recommended to obtain quotes from different mechanics or repair shops.
7. Are there any preventive measures to avoid OBDII code P1E28 in the future?
- Regular maintenance of the transmission system and the hybrid/EV battery system can help prevent issues that may trigger OBDII code P1E28. It is also important to address any warning signs promptly.
8. Is OBDII code P1E28 specific to certain vehicle makes and models?
- While this code may be more common in hybrid or electric vehicles, it can potentially occur in any vehicle with the relevant components. Consult your vehicle's manual or a professional mechanic for specific information.
9. Can a DIY enthusiast attempt to fix OBDII code P1E28?
- Fixing OBDII code P1E28 may require specialized tools and expertise, so it is generally recommended to seek assistance from a qualified mechanic to ensure the issue is properly diagnosed and repaired.
10. How urgent is it to address OBDII code P1E28 once detected?
- It is recommended to address OBDII code P1E28 as soon as possible to prevent further damage to the transmission system and ensure the overall safety and performance of the vehicle.
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