What Does P060F Mean?
P060F indicates that the ECM/PCM has detected an internal performance issue with its coolant temperature signal processing. The ECM monitors its internal handling of the engine coolant temperature (ECT) sensor data, and this code sets when the processed values are outside the expected range or behave erratically internally. This could cause incorrect fuel mixture, cooling fan operation, or transmission shift timing. The driver may notice the check engine light, incorrect temperature gauge reading, or poor cold-start performance.
Common Causes
30%
Internal ECM/PCM fault in the coolant temperature signal processing circuit
25%
Engine coolant temperature sensor fault — reading out of range or intermittent
20%
ECT sensor wiring issue — high resistance, intermittent open, or short
15%
ECM 5V reference or signal ground issue affecting ECT circuit accuracy
10%
ECM software calibration issue in ECT signal validation
Diagnostic Steps
1
Monitor the ECT sensor PID on the scan tool from a cold start — it should show ambient temperature initially and rise smoothly to approximately 195-220°F (90-105°C) as the engine warms up. Erratic readings or values stuck at extremes indicate a sensor or circuit fault.
2
Measure the ECT sensor resistance at the sensor connector (disconnected from the ECM): at 70°F (21°C) it should read approximately 2,000-3,000 ohms; at 200°F (93°C) approximately 200-300 ohms. Values outside these ranges indicate a failed sensor.
3
Check the wiring from the ECT sensor to the ECM: measure continuity (below 5 ohms) and check for shorts to ground or voltage on both the signal and ground wires.
4
Verify the ECM's signal ground at the ECT sensor connector — it should show less than 0.05V with key on. A floating ground will cause A/D conversion errors in the ECM.
5
If the sensor and wiring test normal, attempt an ECM reflash with the latest calibration. If P060F persists, the ECM's internal temperature processing circuit is faulty and the module requires replacement.
Estimated Repair Cost
$50 - $1,200
Parts + labor, varies by vehicle and location
P060F indicates that the ECM/PCM has detected an internal performance issue with its coolant temperature signal processing. The ECM monitors its internal handling of the engine coolant temperature (ECT) sensor data, and this code sets when the processed values are outside the expected range or behav...
The most common cause of P060F (Internal Control Module Coolant Temperature Performance) is: Internal ECM/PCM fault in the coolant temperature signal processing circuit
Typical repair costs for P060F range from $50 to $1,200, depending on the vehicle, location, and whether you do it yourself or go to a shop.
Drive with caution and monitor your temperature gauge closely. If the ECM is misprocessing coolant temperature, it may not activate cooling fans or adjust the fuel mixture correctly, potentially leading to overheating or engine damage. If the gauge shows abnormal readings or the engine overheats, stop driving immediately.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P060F to identify the root cause.
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Quick Info
Category
Powertrain
System
Engine Control Module / Cooling System
Difficulty
Type
Generic (SAE)
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