Test N: The Driver Door Module (DDM) Does Not Respond To The Scan Tool

PINPOINT TEST N: THE DRIVER DOOR MODULE (DDM) DOES NOT RESPOND TO THE SCAN TOOL

N1:

N1-N3:

N3-N4:

Normal Operation
The DDM communicates with the scan tool through the medium speed controller area network (MS-CAN). Circuits VDB06 (GY/OG) (MS-CAN +) and VDB07 (VT/OG) (MS-CAN -) provide the network connection to the DDM. The DDM shares the MS-CAN network with the smart junction box (SJB), the instrument cluster, the audio unit, the THX(R) amplifier (if equipped), the satellite radio receiver (if equipped), the driver seat module (DSM) (if equipped), and the climate controlled seat module (if equipped). Voltage for the DDM is provided by circuit SBP15 (RD/WH). Circuit GD126 (BK/WH) provides ground.

Possible Causes
- Fuse
- Circuit GD126 (BK/WH) open
- Circuit SBP15 (RD/WH) open
- Circuit VDB06 (GY/OG) open (MS-CAN +)
- Circuit VDB07 (VT/OG) open (MS-CAN -)
- DDM