Seat Belt Guide Track: Description and Operation

The following description applies to the operation of the passive restraint system. The chart indicates the system inputs and pins necessary for application to the driver's and passenger's side of the system.
Conditions To Move Carrier From A-Pillar To B-Pillar
To move the carrier from the A-pillar to the B-pillar when the door is closed (pin 13 floating/not-grounded), and the ignition key is in the ON position (pin 25 high), the passive restraint module will check the B-pillar limit switch (pin 18).
If the B-pillar limit switch is not activated (pin 18 floating/not-grounded), the passive restraint module will apply power to the driver motor. This will send the carrier from the A-pillar to the B-pillar (pins 2 & 17 high, pins 3 & 4 grounded), until the B-pillar limit switch is activated (pin 18 grounded).
If the B-pillar limit switch is activated (pin 18 grounded), no action will occur.
Conditions To Move Carrier From B-Pillar To A-Pillar
To move the carrier from the B-pillar to the A-pillar when the door is opened (pin 13 grounded), and the inertia switch is set (pin 12 floating), the passive restraint module will check the A-pillar limit switch (pin 5).
If the A-pillar limit switch is not activated (pin 5 floating), the passive restraint module will apply power to the driver motor. This will send the carrier from the B-pillar to the A-pillar (pins 3 & 4 high, pins 2 & 17 grounded), until the A-pillar limit switch is activated (pin 5 grounded).
If the A-pillar limit switch is activated (pin 5 grounded), or the inertia switch is tripped (pin 12 grounded), no action will occur.