The P0C1C: Auxiliary Transmission Fluid Pump Control Module Internal Temperature Sensor Circuit fault code indicates a problem with the temperature sensor circuit within the auxiliary transmission fluid pump control module. This may be due to faulty wiring, sensor circuit issues, or control module malfunctions. The sensor is crucial for monitoring the internal temperature of the control module and ensuring proper operation.
P0C1C – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0C1C: Auxiliary Transmission Fluid Pump Control Module Internal Temperature Sensor Circuit |
| Is it serious? | Yes, failure in the temperature sensor circuit can lead to overheating and control module failure. |
| Possible causes | – Faulty temperature sensor circuit – Wiring or connection issues – Control module problems |
| How to diagnose? | – Test the temperature sensor circuit – Inspect wiring and connections – Check the control module for faults |
P0C1C Meaning
The P0C1C code indicates a fault in the temperature sensor circuit within the control module of the auxiliary transmission fluid pump. This circuit is responsible for monitoring the internal temperature of the control module, and any failure in the sensor or its circuit can lead to improper temperature readings. Without accurate temperature data, the control module may overheat or underperform, affecting the transmission fluid pump’s efficiency.
Step-by-step diagnostic guide
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check for any additional related codes, especially those related to the temperature sensor or control module issues. | OBD-II Scanner |
| Test the Temperature Sensor Circuit | Use a multimeter or diagnostic tool to test the continuity and functionality of the temperature sensor circuit. Ensure it is operating within the manufacturer’s specifications. | Multimeter, Diagnostic Tool |
| Inspect Wiring and Connections | Visually inspect the wiring and connections for the temperature sensor circuit, looking for signs of damage, corrosion, or loose connections. Repair or replace any damaged wires. | Flashlight, Multimeter, Wiring Diagram |
| Check the Control Module for Faults | If the sensor circuit and wiring appear to be in good condition, inspect the control module for internal faults that may be causing the temperature sensor circuit failure. | 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 has been resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | After the test drive, re-scan the system to ensure that the P0C1C code does not return. | OBD-II Scanner |
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