P1E2C Cadillac Code - Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance
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
- P1E2C Cadillac indicates Auxiliary Transmission Fluid Pump Phase U Current Sensor Performance.
- 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 P1E2C 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 P1E2C Cadillac?
- 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 P1E2C 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 P1E2C 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.
Need more information about the P1E2C Cadillac code?
Need more information on how to fix the P1E2C Cadillac code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1E2C Cadillac code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1E2C Cadillac Code
1. What does the OBDII code P1E2C mean for a Cadillac?
Code P1E2C indicates an issue with the Auxiliary Transmission Fluid Pump Phase U Current Sensor, specifically regarding its performance or signal accuracy.
2. What are the common symptoms of code P1E2C on a Cadillac?
Symptoms may include transmission overheating, poor shifting performance, a warning light on the dashboard, or reduced fuel efficiency.
3. What causes the P1E2C code to appear on a Cadillac?
Common causes include a malfunctioning current sensor, wiring issues, connector problems, or a fault in the auxiliary transmission fluid pump itself.
4. Can I drive my Cadillac with the P1E2C code active?
While the vehicle may still be drivable, continued operation with this code could lead to transmission damage or reduced performance. It’s best to address the issue promptly.
5. How is the P1E2C code diagnosed?
Diagnosis typically involves scanning the vehicle with an OBDII tool, inspecting the auxiliary transmission fluid pump and sensor wiring, and testing the current sensor for proper operation.
6. What repairs are needed to fix the P1E2C code on a Cadillac?
Repairs may include replacing the faulty current sensor, repairing damaged wiring or connectors, or replacing the auxiliary transmission fluid pump if it’s defective.
7. How much does it cost to repair the P1E2C code on a Cadillac?
Repair costs vary depending on the specific issue but can range from $200 to $800, including parts and labor, depending on the extent of the damage and labor rates.
8. Can a faulty auxiliary transmission fluid pump cause the P1E2C code?
Yes, a malfunctioning auxiliary transmission fluid pump can cause this code if it fails to operate properly or causes abnormal sensor readings.
9. How can I prevent the P1E2C code from occurring again?
Regular maintenance, such as inspecting wiring and connectors for damage, and ensuring the transmission fluid pump is functioning properly, can help prevent this code from reoccurring.
10. Does the P1E2C code affect transmission fluid circulation?
Yes, this code can indicate issues with the auxiliary transmission fluid pump, which may lead to inadequate fluid circulation, potentially harming the transmission.
Discuss the causes and fixes for P1E2C Cadillac OBDII Code
Code P1E2C Cadillac comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
