DTC Ford C0034-2F Short Explanation
Channel: Maxidot Ford
Date: 2020-06-20

The video focuses on the basic Ford specific diagnostic error code.
Contents:
0:21 Basic DTC analysis according to OBD2 protocol standard.
1:48 Insight into programming
- an explanation of what a bit is and how a byte is formed
- decoding the Error Code to the base programming
2:58 A diagnostically understandable description of the Diagnostic Trouble Code
3:05 Basic error definition
- Possible causes or errors of the car and its parts describing the mentioned error

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Make:
Ford
Code:
C0034 2F
Definition:
THERMOSTAT RATIONALITY
Description:
The Thermostat is considered malfunctioning if the coolant temperature does not reach the highest temperature required to enable other diagnostics, or the coolant temperature does not reach a warmed up temperature within 11.0&#176;C (20&#176;F) of the Thermostat regulating temperature. The Powertrain Control Module (PCM) creates a model of the engine coolant temperature warm up cycle, based on the engine coolant temperature at start up, ambient temperature, vehicle speed and engine speed. The modeled engine coolant temperature is compared to the Engine Coolant Temperature (ECT) Sensor reading. If the engine actual temperature reaches the calibrated temperature threshold before the model, the diagnostic passes and completes.
Cause:
LOW COOLANT LEVELCOOLING SYSTEM ISSUESTHERMOSTAT OPERATION
Failure Type:
Signal Erratic
This sub type is used for failures where the signal is momentarily implausible (not long enough for "signal invalid") or discontinuous.