DTC Cadillac P1915 Short Explanation
Channel: Maxidot
Date: 14/12/2020

The video focuses on the basic Cadillac 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:
Cadillac
Code:
P1915
Definition:
Invalid Data Received From Electrical Parking Brake. System Internal Failures. General Checksum Failure
Description:
The control modules transmit and receive information via a standardized serial communication method - CAN (Control Area Network).The electric parking brake (EPB) transmits information on the controller area network (CAN),which the other systems can use.The Brake control module (BCM) retrieves the information that can then be used in different brake functions.The Brake control module (BCM) checks that the communication is correct via an internal diagnostic test mode (DTM).The diagnostic trouble code (DTC) is stored if the control module detects: The signal deviates from the expected value.The control modules test for the diagnostic trouble code (DTC) starts in the event of: Ignition switch position II.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:
Fault-trace the Park Brake Module (PBM).