Class 2 Serial Data Line
WARNING: This page is about a different car, the 2004 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.
The class 2 serial data communications circuit on this vehicle is in a star configuration. This configuration has 3 splice packs, located as follows:
- The splice pack - SP205 located near the data link connector
- The splice pack - SP206 located under the steering column
- The splice pack - SP207 located under the LH cowl panel
There is also a direct redundant class 2 serial data circuit between BCM and PCM.
The following modules communicate on the class 2 serial data circuit:
- Splice pack - SP205 attaches to:
- BCM
- DDM
- EBCM
- ESC
- FPDM
- HVAC control module
- IPC
- PCM
- Radio
- TCSCM
- Splice pack - SP206 attaches to:
- Audio amplifier (early production), refer to Radio/Audio System Description and Operation in Entertainment for more information.
- RSA control
- VCIM
- Splice pack - SP207 attaches to DSM and SDM.