The P0C2E: Auxiliary Transmission Fluid Pump Control Module Feedback Signal High fault code indicates that the feedback signal from the auxiliary transmission fluid pump control module is reading higher than expected. This could be due to a faulty feedback sensor, issues with the control module, or wiring problems. A high feedback signal can lead to improper operation of the pump, affecting transmission fluid circulation and cooling.
P0C2E – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0C2E: Auxiliary Transmission Fluid Pump Control Module Feedback Signal High |
| Is it serious? | Yes, a high signal can cause the pump to malfunction, affecting transmission cooling. |
| Possible causes | – High feedback signal reading – Faulty sensor or control module – Wiring issues |
| How to diagnose? | – Measure the feedback signal – Test the sensor and control module – Inspect wiring and connections |
P0C2E Meaning
The P0C2E code means that the feedback signal from the auxiliary transmission fluid pump control module is reporting higher-than-normal values. The feedback signal is essential for regulating the pump’s operation, and an abnormally high signal can cause the pump to overwork or operate inefficiently, potentially leading to transmission cooling problems.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for additional related codes, especially those involving control module communication or sensor issues. | OBD-II Scanner |
| Measure the Feedback Signal | Use a multimeter or diagnostic tool to measure the feedback signal from the control module. Compare the readings with manufacturer specifications to determine if the signal is too high. | Multimeter, Diagnostic Tool |
| Test the Feedback Sensor | Test the feedback sensor to verify it is providing accurate readings. Replace the sensor if it is faulty or producing excessively high readings. | Multimeter, Diagnostic Tool |
| Inspect Wiring and Connections | Visually inspect the wiring and connections leading to the feedback sensor and control module for signs of damage, corrosion, or loose connections. Repair or replace faulty wiring as needed. | Flashlight, Multimeter, Wiring Diagram |
| Test the Control Module | If the feedback sensor and wiring are functioning properly, test the control module for internal faults that could cause the high feedback signal. | Diagnostic Tool, Vehicle Manual |
| Clear the Code and Test Drive | After completing repairs, clear the fault code using an OBD-II scanner and perform a test drive to confirm that the issue is resolved and the feedback signal is accurate. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | After the test drive, re-scan the system to confirm that the P0C2E code does not return. | OBD-II Scanner |
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