P1E33 Saturn 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 Saturn 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 Saturn 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 Saturn?
- 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 Saturn?
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 Saturn 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 Saturn Code
1. What does the OBDII code P1E33 mean on a Saturn?
The code P1E33 indicates that the current sensors for the auxiliary transmission fluid pump’s Phase U, V, or W signals are not plausible, suggesting a fault in the pump's electrical circuit or sensor readings.
2. What are the common symptoms of a P1E33 code?
Symptoms may include a check engine light, reduced transmission performance, erratic shifting, or the vehicle entering limp mode.
3. What causes the P1E33 code to appear?
Common causes include a faulty auxiliary transmission fluid pump, damaged wiring or connectors in the pump circuit, or a malfunctioning control module.
4. Can I drive with a P1E33 code?
While it may be possible to drive with this code, it is not recommended as it could lead to transmission overheating or further damage.
5. How do you diagnose a P1E33 code?
Diagnosis involves inspecting the auxiliary transmission fluid pump, checking wiring and connectors for damage, and using a scan tool to monitor sensor readings and test the pump's functionality.
6. How is the P1E33 code repaired?
Repairs may include replacing the auxiliary transmission fluid pump, repairing damaged wiring or connectors, or reprogramming or replacing the control module if necessary.
7. Is the P1E33 code specific to Saturn vehicles?
While P1E33 is most commonly associated with Saturn vehicles, similar codes might appear in other makes with the same auxiliary transmission system.
8. How much does it cost to fix a P1E33 code?
Repair costs can vary but typically range from $200 to $800, depending on whether the pump or wiring needs replacement and labor rates.
9. Can a dead battery cause the P1E33 code?
A weak or dead battery is unlikely to directly cause this code but could contribute to electrical issues that affect the transmission pump’s operation.
10. Will clearing the P1E33 code fix the issue?
Clearing the code may temporarily turn off the check engine light, but the underlying issue must be resolved to prevent the code from returning.
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