DTC Jeep C1252-86 Short Explanation
Channel: Maxidot
Date: 2020-10-26

The video focuses on the basic Jeep 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:
Jeep
Code:
C1252 86
Definition:
Handset Supply Signal Too High
Description:
The Phone module (PHM) checks the voltage supply to the telephone handset.The diagnostic trouble code (DTC) is stored if the control module detects that:The power supply is higher than 9 V.The control modules test for the diagnostic trouble code (DTC) starts in the event of:Ignition position 0, I and II. Battery voltage between 9 - 16 V.Note! The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Cause:
The cable for voltage supply to the handset from the Phone module (PHM) is short-circuited to supply voltage.
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.