STS RWD V8-4.6L (2007)
* The dynamic headlamp leveling (DHL) device, with TR7
* The electronic brake control module (EBCM)
* The transmission control module (TCM)
* The engine control module (ECM)
The distance sensing and cruise control (DSCC) module, with K59 option, it is connected to the high speed GMLAN bus through splice pack SP100.
Refer to Data Communication Schematics for more information. See: Diagrams/Electrical Diagrams
The OnStar module doesn't functionally communicate on the high speed GMLAN bus. It is connected to high speed GMLAN bus for remotely diagnostic
purposes.
Low Speed GMLAN Serial Data Line
The low speed GMLAN serial data communication circuit on this vehicle is in a star configuration. The star has 3 splice packs, located as follows:
* The splice pack SP201 is located under the left side of the instrument panel (I/P), near the data link connector (DLC).
* The splice pack SP300 is located next by the left B-pillar.
* The splice pack SP303 is located next by the right B-pillar.
The following modules communicate on the low speed GMLAN serial data circuit:
* The splice pack SP201 attaches to:
-
The instrument panel module (IPM)
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The head-up display (HUD), with UV6
-
The HVAC control module
-
The instrument panel cluster (IPC)
-
The radio
-
The steering column lock control module (SCLCM), with UA2
* The splice pack SP300 attaches to:
-
The audio amplifier
-
The driver door module (DDM)
-
The driver door switch (DDS) is attached to DDM
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The driver position module (DPM), with A45
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The digital radio receiver (DRR), with U2K
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The inflatable restraint sensing and diagnostic module (SDM)
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The left rear door module (LRDM)
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The rear integration module (RIM)
-
The remote control lock door receiver (RCDLR)
-
The television (TV) module, with YK6/YK7
* The splice pack SP303 attaches to:
-
The communication interface module (OnStar), with UE1
-
The inflatable restraint SDM
-
The passenger door module (PDM)
-
The right rear door module (RRDM)
Refer to Data Communication Schematics for more information. See: Diagrams/Electrical Diagrams