Test J: The Driver Door Module (DDM) Does Not Respond To The Diagnostic Tool

PINPOINT TEST J: THE DRIVER DOOR MODULE (DDM) DOES NOT RESPOND TO THE DIAGNOSTIC TOOL

J1:

J2-J3:

J3-J4:

J5-J6:

J6-J7:

Normal Operation
The DDM communicates with the diagnostic tool through the standard corporate protocol (SCP) communications network circuits 4-EG13 (GY/OG) and 5-EG13 (GY/OG). If one of the SCP communications network circuits become shorted to ground or voltage, or if some but not all termination resistors are lost, communications can continue. Check circuits 4-EG13 (GY/OG) and 5-EG13 (GY/OG) between the DDM C501a 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 either an open in circuit 4-EG13 (GY/OG) or 5-EG13 (GY/OG), damage to the DLC C251, damage to the DDM C155a, or a problem in the interior auxiliary junction box (AJB) C283c, interior AJB C283d or joint connector No. 4 C223.

Possible Causes
- SCP data plus circuit 4-EG13 (GY/OG) open
- SCP data minus circuit 5-EG13 (GY/OG) open
- joint connector No. 4 C223
- interior AJB C283c
- interior AJB C283d
- DDM C501a
- DDM