Chassis High Speed GMLAN Circuit Description
WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
| Callout | Component Name |
|---|---|
| F55 | CHASSIS: CONTINOUSLY VARIABLE REAL TIME DAMPING MAGNETO RHEOLOGICAL |
| UGN | COLL IMMINENT BRK: VEHICLE FORWARD MOVEMENT, BRAKE PREFILL and INTELLIGENT BRAKE ASSIST |
| UVZ | SENSOR: COLLISION AVOIDANCE and MITIGATION, VEHICLE REVERSE MOVEMENT |
| UGN | COLL IMMINENT BRK: VEHICLE FORWARD MOVEMENT, BRAKE PREFILL and INTELLIGENT BRAKE ASSIST |
| UVZ | SENSOR: COLLISION AVOIDANCE and MITIGATION, VEHICLE REVERSE MOVEMENT |
| K17 | K17 Electronic Brake Control Module |
| K43 | K43 Power Steering Control Module |
| B99 | B99 Steering Wheel Angle Sensor |
| K19 | K19 Suspension Control Module |
| K124 | Active Safety Control Module |
| B119 | B119 Multi-axis Acceleration Sensor |
| K36 | K36 Inflatable Restraint Sensing and Diagnostic Module |
| X84 | X84 Data Link Connector |
The GMLAN Chassis Expansion Bus is basically a copy of the High Speed GMLAN Bus except that its use is reserved for chassis components. This implementation splits message congestion between two parallel buses helping to insure timely message transmission and reception. Sometimes communication is required between the Chassis Expansion Bus and the primary High Speed GMLAN Bus. This is accomplished by using the K17 Electronic Brake Control Module (EBCM) as the Gateway module. Since the High Speed GMLAN Chassis Expansion Bus and primary High Speed GMLAN Bus operate in the same manner, the diagnostics for each are similar.