Description & Operation: Notes

WARNING: This page is about a different car, the 1995 Dodge Ram Wagon and 1995 Dodge Ram Van. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: To avoid injury from accidental air bag deployment, read and carefully follow all WARNINGS and SERVICE PRECAUTIONS.

The Supplemental Restraint System (SRS) is designed to work in conjunction with seat belts. Ram Van and Ram Wagon are equipped with a driver-side air bag only. SRS provides increased accident protection for driver by deploying air bag in a front-end collision. The air bag(s) deploy in about 1/10th of a second after front impact sensors close.

System consists of an AIR BAG warning light, clockspring, driver-side air bag module, Air Bag Control Module (ACM), and impact sensor. The ACM monitors system, stores fault codes (messages), and provides information to AIR BAG warning light and ACM data link connector. A fault code is stored when AIR BAG warning light is activated for more than 10 seconds.

One impact sensor is used in air bag system. Sensor is located inside of ACM. Impact sensor is an accelerometer that senses deceleration. When an impact is severe enough to require air bag protection, deceleration pulses are sent to a microprocessor located within the ACM. The ACM then sends a signal that completes the electrical circuit through driver and passenger-side air bags. This causes inflators to be actuated, producing a large quantity of nitrogen gas and inflating air bags.