Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

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

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


G1-G2:






G2-G3:






G4:






Normal Operation
The DDM communicates with the scan tool through the standard corporate protocol (SCP) communication network. Circuits 914 (TN/OG) (SCP +) and 915 (PK/LB) (SCP-) provide the network connection to the DDM. The DDM shares the SCP network with the lighting control module (LCM), the rear audio/climate control module (if equipped), the driver seat module (DSM) (if equipped), the navigation module (if equipped), the electronic automatic temperature control (EATC) module and the instrument cluster. Voltage for the DDM is provided by circuit 1524 (DB). Circuit 676 (PK/OG) provides ground.

Possible Causes
- Fuse
- Circuit 676 (PK/OG) open
- Circuit 914 (TN/OG) open (SCP +)
- Circuit 915 (PK/LB) open (SCP -)
- Circuit 1524 (DB) open
- DDM