DTC Ford P04E2 Short Explanation
Channel: Maxidot Ford
Date: 2020-06-20

The video focuses on the basic Ford 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:
P04E2
Definition:
HECU Fault
Description:
Case 1 • The test actuates all valves in series to detect shorts or shunts between the valve lines.  Faults are detected if there is an error during the test.  Case 2 • The drift test is executed only once during an ignition Cycle. If it detects partly shorted valve coils, almost inoperative coils or malfunction of the valve driver,  a failure is recognized.
Cause:
 Inoperative HECU