How is the ignition state of a Hummer determined?
How is the ignition state of a Hummer determined?
Ignition state is determined by the VCIM through class 2 messaging. The module also has the capability of commanding the horn, door lock/unlock, and operating the exterior lamps using the class 2 serial data circuit.
What is the vcim in a Hummer H2?
This system also interfaces with the factory installed vehicle audio system. The vehicle communication interface module (VCIM) is a 3-watt cellular device that allows the user to communicate data and voice signals over the National Cellular Network.
Where does the OnStar signal go after muted?
After the audio system is muted, the OnStar(R) signals are transmitted to the audio system on the cellular telephone voice signal circuit, and returned to the module on the cellular telephone voice low reference circuit.
Where are the fuses on a Hummer H2?
Cigar lighter (power outlet) fuses in the Hummer H2 are located in the Instrument panel fuse box (“AUX PWR 2” – 2003-2004), and in the engine compartment – see fuses “AUX PWR” and “CIG LTR”. The Instrument Panel Fuse Box is located behind the cover on the driver’s side edge of the instrument panel.
When did the Hummer H2 get a facelift?
In this article, we consider the Hummer H2 before a facelift, produced from 2002 to 2007. Here you will find fuse box diagrams of Hummer H2 2002, 2003, 2004, 2005, 2006 and 2007, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.
Ignition state is determined by the VCIM through class 2 messaging. The module also has the capability of commanding the horn, door lock/unlock, and operating the exterior lamps using the class 2 serial data circuit.
After the audio system is muted, the OnStar(R) signals are transmitted to the audio system on the cellular telephone voice signal circuit, and returned to the module on the cellular telephone voice low reference circuit.
