P1E22 Chevrolet Code - Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery Voltage System Isolation Lost
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
- P1E22 Chevrolet indicates Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery Voltage System Isolation Lost.
- 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 P1E22 Chevrolet Description
What are the Possible Causes of the DTC P1E22 Chevrolet?
- 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 P1E22 Chevrolet?
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.
Code Tech Notes
The following DTCs may be set:
- P1AEE - Drive Motor 1 Control Module Hybrid/EV Battery System Voltage High Voltage
- P1AEF- Drive Motor 2 Control Module Hybrid/EV Battery System Voltage High Voltage
- P1AF0 - Drive Motor 1 Control Module Hybrid/EV Battery Voltage System Isolation Lost
- P1AF2 - Drive Motor 2 Control Module Hybrid/EV Battery Voltage System Isolation Lost
- P1E22 - Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery Voltage System Isolation Lost
If only two or three of these DTCs are set, follow the appropriate Service Information diagnostic procedures. The cause may not be any internal components of the transmission.
If all five DTCs are set, there is an internal fault with the transmission and the transmission requires replacement. Do not attempt any internal repairs.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1E22 Chevrolet 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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Frequently Asked Questions about P1E22 Chevrolet Code
1. What are the common symptoms of OBDII code P1E22 in a Chevrolet vehicle?
- Common symptoms include loss of power, decreased fuel efficiency, transmission shifting issues, and the illumination of the Check Engine Light.
2. What can cause the Auxiliary Transmission Fluid Pump Control Module Hybrid/EV Battery Voltage System Isolation Lost code in a Chevrolet?
- The code P1E22 can be triggered by issues such as a faulty auxiliary transmission fluid pump control module, a problem with the hybrid/EV battery voltage system, or wiring/connectivity issues.
3. How serious is OBDII code P1E22 in a Chevrolet?
- This code should be addressed promptly as it can affect the performance and drivability of the vehicle, especially in hybrid or electric models.
4. Can I continue driving my Chevrolet with the P1E22 code present?
- It is not recommended to drive the vehicle with this code active, as it can lead to further damage and potential safety hazards.
5. How do I diagnose the cause of the P1E22 code in my Chevrolet?
- Diagnosing the issue typically requires a professional OBDII scanner to read the code and further testing to pinpoint the exact cause, which may involve checking the auxiliary transmission fluid pump control module and battery voltage system.
6. What are some repair tips for addressing the P1E22 code in a Chevrolet?
- Repair tips may include checking and repairing any damaged wiring, replacing the auxiliary transmission fluid pump control module if necessary, and ensuring proper functioning of the hybrid/EV battery voltage system.
7. Can I reset the P1E22 code in my Chevrolet using an OBDII scanner?
- Yes, you can use an OBDII scanner to clear the code, but it is important to address the underlying issue causing the code to prevent it from reoccurring.
8. Is it expensive to repair the P1E22 code in a Chevrolet?
- The cost of repairs can vary depending on the exact cause of the code and the labor rates of the repair shop. It is recommended to get a diagnosis and estimate from a qualified mechanic.
9. Will the P1E22 code cause my Chevrolet to fail emissions testing?
- Yes, having an active OBDII code like P1E22 can cause your vehicle to fail emissions testing, so it is important to address the issue before undergoing testing.
10. How can I prevent the P1E22 code from appearing in my Chevrolet in the future?
- Regular maintenance, such as checking the transmission system and battery components, can help prevent issues that may trigger the P1E22 code.
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