DTC Dodge B1646-15 Short Explanation
Channel: Maxidot Dodge
Date: 2020-06-27

The video focuses on the basic Dodge 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:
Dodge
Code:
B1646 15
Definition:
No Communication With SDM (Restraint Module)
Description:
Key on,and a message from a learned ID number was not detected for the five seconds.Modules on the Class 2 circuit monitor for data communications during vehicle operation.When a module receives a message for critical data,the module records the ident
Cause:
SDM Class 2 circuit is open,shorted to ground or to B+SDM ignition power circuit has a high resistance conditionSDM main ground circuit(s) has a high resistance conditionSDM (module) may have failed and is pulling the circuit low
Failure Type:
Circuit Short To Battery or Open
This sub type is used for failures, where the condition detected by the control module is the same for either indicated failure mode.