DTC Hummer B2708 Short Explanation
Channel: Maxidot Hummer
Date: 2020-06-20

The video focuses on the basic Hummer 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:
HUMMER
Code:
B2708
Definition:
Starter Cut Relay 1 Malfunction
Description:
Engine running,  Starter switch OFF cut relay turn on switching failure,  ON STRLD open circuit failure.  One of these conditions occurs.  (1) The terminal voltage of the STRLD exceeds 3.0 volts for at least 5 seconds when the starter cut relay output is turned off.  (2) The terminal voltage of the STRLD is 2.4-2.6 volts for at least 0.8 second when the starter cut relay output is turned on.  NOTE: Before you troubleshoot,  record all freeze data and any on-board snapshot.
Cause:
 Poor connections or loose terminals at starter cut relay 1 and the PCM Faulty starter relay 1