Navigator 4WD V8-5.4L VIN 5 (2006)
Seat Belt Tensioner: Description and Operation
Supplemental Restraint System
SAFETY BELT PRETENSIONERS
NOTE: There is currently no restraint system diagnostic tool for the safety belt buckle pretensioner under the seat connectors. When diagnosing the
safety belt buckle pretensioners, it will be necessary to disconnect the affected safety belt buckle pretensioner pigtail harness connector on the
component and install a restraint system diagnostic tool.
As part of the SRS, the driver and front outboard passenger safety belt buckles are equipped with pretensioners. The safety belt buckle pretensioners
remove excess slack from the safety belt webbing. The pretensioners are activated by the restraints control module (RCM) when the module detects a
crash event force exceeding a programmed limit.