The P0C1D: Auxiliary Transmission Fluid Pump Control Module Internal Temperature Sensor Circuit Range/Performance fault code indicates that the temperature sensor circuit within the auxiliary transmission fluid pump control module is not performing within its specified range. This could be due to a faulty temperature sensor, issues with the control module, or wiring and connection problems. Accurate temperature readings are essential for proper transmission fluid pump function.
P0C1D – Quick Overview
| Code | Information |
|---|---|
| Meaning | P0C1D: Auxiliary Transmission Fluid Pump Control Module Internal Temperature Sensor Circuit Range/Performance |
| Is it serious? | Yes, sensor range/performance issues can lead to overheating or improper transmission fluid pump operation. |
| Possible causes | – Temperature sensor circuit performance issue – Faulty sensor or control module – Wiring or connection problems |
| How to diagnose? | – Verify the temperature sensor circuit performance – Test the sensor and control module – Inspect wiring and connections |
P0C1D Meaning
The P0C1D code indicates that the internal temperature sensor circuit for the auxiliary transmission fluid pump control module is not operating within its specified range or performance levels. This could result from a malfunctioning sensor, wiring issues, or a fault within the control module. The temperature sensor is critical for monitoring the control module’s internal temperature and ensuring the proper operation of the transmission fluid pump.
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 linked to temperature sensor circuit performance. | OBD-II Scanner |
| Verify Temperature Sensor Circuit Performance | Use a multimeter or diagnostic tool to measure the performance and output of the temperature sensor circuit. Compare the readings with manufacturer specifications. | Multimeter, Diagnostic Tool |
| Test the Temperature Sensor | Test the temperature sensor to ensure it is accurately reporting temperature data. Replace the sensor if the readings fall outside the expected range. | Multimeter, Diagnostic Tool |
| Inspect Wiring and Connections | Visually inspect the wiring and connections for the temperature sensor circuit, checking for signs of damage, corrosion, or loose connections. Repair or replace as necessary. | Flashlight, Multimeter, Wiring Diagram |
| Test the Control Module | If the sensor and wiring are functioning correctly, inspect the control module for internal faults or issues that could be causing the sensor performance problem. | Diagnostic Tool, Vehicle Manual |
| Clear the Code and Test Drive | After repairs or replacements, clear the code using an OBD-II scanner and perform a test drive to ensure the system is functioning properly and the issue is resolved. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | After the test drive, re-scan the system to confirm that the P0C1D code does not return. | OBD-II Scanner |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko