Hombre S Regular Cab 4WD V6-4.3L (1999)
Sensing And Diagnostic Module: Initial Inspection and Diagnostic Overview
Accident With or Without Air Bag Deployment - Component Inspections
CAUTION: Proper operation of the Supplemental Restraint System (SRS) requires that any repairs to the vehicle structure return the vehicle structure
to the original production configuration. Not properly repairing the vehicle structure could cause non-deployment of the air bag in a frontal collision or
deployment of the air bag for conditions less severe than intended.
After any collision, inspect the following components as indicated. If you detect any damage, replace the component. If you detect any damage to the
mounting points or mounting hardware, repair the component or replace the hardware as needed.
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Steering column - Perform the steering column accident damage checking procedures. Refer to Steering Wheel and Column Description.
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IP Knee Bolsters - Inspect the knee bolsters for bending,twisting, buckling, or any other type of damage.
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IP brackets, braces, etc. - Inspect for bending, twisting,buckling, or any other type of damage.
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Seat Belts - Perform the seat belt operational and functional checks. Refer to SEAT BELT OPERATIONAL AND FUNCTIONAL CHECK
Accident With Air Bag Deployment - Component Replacement and Inspections
After a collision involving air bag deployment, replace the following components. If you detect any damage to the mounting points or mounting
hardware, repair or replace the mounting points and mounting hardware as needed.
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Supplemental Restraint IP (Inflator) Module
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Supplemental Restraint Steering Wheel (Inflator) Module
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Supplemental Restraint Sensing and Diagnostic Module (SDM)
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Supplemental Restraint Front End Discriminating Sensor.
After a collision involving air bag deployment, inspect the supplemental restraint steering wheel module coil and the coil wiring pigtail for melting,
scorching, or other damage due to excessive heat. Perform this component inspection in addition to the inspections indicated above in Accident With or
Without Air Bag Deployment. If you detect any damage, replace the component. If you detect any damage to the mounting points or mounting hardware,
repair the component or replace the hardware as needed.
Sensor Replacement Guidelines
The SRS sensor replacement policy requires replacing sensors in the area of accident damage. The area of accident damage is defined as the portion of
the vehicle which is crushed, bent, or damaged due to a collision. For example, a moderate collision where the front of the vehicle impacts a tree. If the
vehicle has a SRS sensor mounted forward of the radiator, the SRS sensor must be replaced.
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Replace the sensor whether or not the air bags have deployed.
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Replace the sensor even if the sensor appears to be undamaged.
Sensor damage which is not visible, such as slight bending of the mounting bracket or cuts in the wire insulation, may cause improper operation of the
SRS sensing system. Do not try to determine whether the sensor is undamaged, replace the sensor. Also, if you follow a diagnostic trouble code (DTC)
table and a malfunctioning sensor is indicated, replace the sensor.
