ISO 9141 Communication Network

The Electronic Crash Sensor (ECS) module is on the ISO 9141 communication network. The ECS controls the deployment of the air bags based on sensor input.

The Generic Electronic Module (GEM)/Central Timer Module (CTM) is on the ISO 9141 communication network. The GEM is equipped on vehicles with four-wheel drive or vehicles with power windows. The CTM is equipped on vehicles with two-wheel drive or vehicles without power windows. The GEM controls a variety of systems:
- 4x4.
- Windshield wipers.
- Courtesy lamps.
- One touch down power windows, etc.
- Warning chimes/lamps.

The Remote Anti-theft Personality (RAP) module is on the ISO 9141 communication network. The RAP module controls the keyless remote entry and active anti-theft of the vehicle.

The 4-Wheel Anti-lock Brake System (4WABS) module is on the ISO 9141 communication network. The 4WABS module controls the brake pressure to the four wheels to keep the vehicle under control while braking.

The Automatic Ride Control (ARC) system is a computer controlled suspension system. The front and rear shock absorber contains an integrated air spring. The front and rear air springs provide automatic load leveling and a ride adjustment with a total span of 50 mm (2 in).

The ARC module programming has a time delay compensation for normal suspension travel over rough roads so the ARC system will not attempt to continuously adjust vehicle ride height.

There is one height sensor mounted in the front and rear of the vehicle. The height sensors have a total travel range of 80 mm (3 in).