P1E33 GMC 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 GMC 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 GMC 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 GMC?
- 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 GMC?
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 GMC 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 GMC Code
1. What are the common symptoms of OBDII code P1E33 in a GMC vehicle?
- Common symptoms include transmission shifting issues, reduced power, and illuminated warning lights on the dashboard.
2. What does the OBDII code P1E33 GMC indicate?
- The code P1E33 indicates an issue with the Auxiliary Transmission Fluid Pump Phase U-V-W Current Sensors not providing plausible data.
3. What are the possible causes of OBDII code P1E33 in a GMC vehicle?
- Possible causes include faulty sensors, damaged wiring or connectors, a malfunctioning auxiliary transmission fluid pump, or a software glitch.
4. How can I diagnose the cause of OBDII code P1E33 in my GMC vehicle?
- Diagnosis typically involves using a diagnostic scanner to read the code, inspecting the sensors and wiring for damage, and testing the auxiliary transmission fluid pump for proper operation.
5. Can OBDII code P1E33 in a GMC vehicle be fixed at home?
- Depending on the cause, some DIY repairs may be possible, such as replacing a faulty sensor or repairing damaged wiring. However, complex repairs may require professional assistance.
6. Is it safe to drive with OBDII code P1E33 present in a GMC vehicle?
- It is not recommended to drive with the code present, as it can lead to further damage to the transmission system and potentially unsafe driving conditions.
7. How much does it typically cost to repair OBDII code P1E33 in a GMC vehicle?
- The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.
8. Can resetting the OBDII code P1E33 in a GMC vehicle make it go away permanently?
- Simply resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to reappear once the system detects the problem again.
9. Are there any recommended maintenance practices to prevent OBDII code P1E33 in a GMC vehicle?
- Regularly checking and servicing the transmission system, including the auxiliary fluid pump and related components, can help prevent issues that lead to code P1E33.
10. How long does it take to repair OBDII code P1E33 in a GMC vehicle?
- The repair time can vary depending on the specific cause and complexity of the issue. Some repairs may be completed in a few hours, while more involved repairs could take a day or longer.
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