Test C: The Vehicle Security Module Does Not Respond to the Diagnostic Tool

PINPOINT TEST C: THE VEHICLE SECURITY MODULE DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

C1:

C2-C3:

Normal Operation
The vehicle security module communicates with the diagnostic tool through the medium speed controller area network (CAN), circuits 2180 (WH/BK) and 2181 (BK/YE). Check circuits 2180 (WH/BK) and 2181 (BK/YE) between the vehicle security module C2113c and the data link connector (DLC) C251. The total resistance values must not be more than 5 ohms. If the resistance is more than 5 ohms there is an open in one of the medium speed CAN circuits, damage to the DLC C251, damage to the vehicle security module C2113c, or a problem in an in-line connector.

Possible Causes
- medium speed CAN circuit 2180 (WH/BK) open
- medium speed CAN circuit 2181 (BK/YE) open
- vehicle security module
- vehicle security module C2113c