P1E33 Cadillac Code - Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible
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 Auxiliary Transmission Fluid Pump, Auxiliary Transmission Fluid Pump harness is open or shorted, Auxiliary Transmission Fluid Pump 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
- P1E33 Cadillac indicates Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors Not Plausible.
- Common causes
- Common causes include Faulty Auxiliary Transmission Fluid Pump, Auxiliary Transmission Fluid Pump harness is open or shorted, Auxiliary Transmission Fluid Pump 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.
Code P1E33 Cadillac Description
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.
What are the Possible Causes of the DTC P1E33 Cadillac?
- Faulty Auxiliary Transmission Fluid Pump
- Auxiliary Transmission Fluid Pump harness is open or shorted
- Auxiliary Transmission Fluid Pump circuit poor electrical connection
How to Fix the DTC P1E33 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 P1E33 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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Frequently Asked Questions about P1E33 Cadillac Code
1. What are common symptoms of OBDII code P1E33 in a Cadillac related to the Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors?
- Common symptoms include erratic shifting, transmission slipping, reduced fuel efficiency, and the transmission going into limp mode.
2. What could be causing the OBDII code P1E33 in a Cadillac related to the Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors?
- Possible causes include a faulty transmission fluid pump, damaged wiring or connectors, issues with the current sensors, or a malfunctioning transmission control module.
3. How can I diagnose the issue causing OBDII code P1E33 in my Cadillac?
- Diagnosing the problem may require a professional scan tool to read the specific transmission codes, testing the current sensors for proper operation, and checking the wiring and connectors for any damage.
4. Can I continue driving my Cadillac with OBDII code P1E33 present?
- It is not recommended to continue driving with this code as it can lead to further damage to the transmission and potentially cause safety issues on the road.
5. How can I repair OBDII code P1E33 in my Cadillac related to the Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors?
- Repair options may include replacing the transmission fluid pump, repairing or replacing damaged wiring or connectors, calibrating or replacing the current sensors, and resetting the transmission control module.
6. Are there any DIY tips for addressing OBDII code P1E33 in a Cadillac?
- DIYers may attempt to check the wiring and connectors for visible damage, clean any corrosion, and ensure proper connections. However, more complex repairs may require professional assistance.
7. Is it necessary to clear the OBDII code P1E33 after making repairs to my Cadillac?
- Yes, it is important to clear the code after repairing the issue to reset the transmission control module and ensure proper functioning of the vehicle.
8. How can I prevent OBDII code P1E33 from reoccurring in my Cadillac?
- Regular maintenance of the transmission system, including checking fluid levels and quality, inspecting wiring and connectors, and addressing any transmission issues promptly, can help prevent the OBDII code from reoccurring.
9. Can a malfunctioning Auxiliary Transmission Fluid Pump affect other systems in my Cadillac?
- Yes, a malfunctioning pump can lead to issues with the transmission system, potentially impacting overall vehicle performance and safety.
10. Is it safe to drive to a repair shop with OBDII code P1E33 triggered in my Cadillac?
- It is best to avoid driving the vehicle if possible and have it towed to a repair shop to prevent further damage to the transmission system.
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