DTC Ford U046B-86 Short Explanation
Channel: Maxidot Ford
Date: 16/07/2020

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:
U046B 86
Definition:
Brake Boost Regulation Pressure Sensor Plausibility Failure
Description:
Ignition ON.The ignition voltage is greater than 10 V.
Cause:
C012D 00, C128D,C012D 11 or C128AInternal sensor failure is detected.C012D 01 or C12BDA short to battery is detected on the sensor signal circuit.C012D 06 or C12BCA short to ground or open is detected signal circuit.C012D 5A or C120AThe boost pressure being commanded is not being achieved.C012D OF or C12BESignal is erratic and changes faster than physically allowed.
Failure Type:
Signal Invalid
This sub type is used for failures where some circuit quantity, reported via serial data, is not plausible given the operating conditions.