Quote:
Originally Posted by turbomart
Its under the centre console and controls the air bags.
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Thanks for the reply and they have possibly integrated the two sensors together but I'm not sure about that. This sensor although confused with airbag control really forms part of the ABS brake system and controls front and rear brake bias under braking and can in fact brake individual wheels independently.It consists of 3 mercury switches in a casing and is governed by gravity under braking.
http://www.ebay.com.au/itm/Jeep-Gran...-/251649019889
And how it works (Teves mark 20 e)
ACCELERATION SWITCH
On the Jeep applications with the Mark 20e system, there is also a special "acceleration switch" (also called a "G-switch") to modify the operation of the ABS system according to traction conditions (important when driving offroad or on slick pavement). The acceleration switch contains three separate mercury switches (G1, G2 & G3), each oriented in a different direction to monitor the vehicle�s motions. The top of the switch housing has an arrow indicator that must face up and point forward. If the housing is misaligned, it can have an adverse effect on the operation of the ABS system.
Under normal driving conditions, all three G switches are normally closed. Switch G1 and G2 monitor forward deceleration, while G3 monitors rearward deceleration. If a certain G force is exceeded, it will open one or more switches, causing the ABS controller to select the appropriate control program for best braking.
From here
http://www.aa1car.com/library/abs_teves_mk20.htm