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DTC 067

CIRCUIT DESCRIPTION

SIR Schematics: Power, Ground, Serial Data, Indicator and Front Inflatable Restraint Modules:




SIR Schematics: Seat Belt Pretensioners, Side Inflatable Restraint Modules, and Sensors:




The Inflatable Restraint Sensing And Diagnostic Module (SDM) contains a sensing device which converts vehicle velocity changes to an electrical signal. The SDM processes the generated electrical signals and compares them to values stored in memory. When the generated signals exceed the stored value, the SDM performs additional signal processing and compares the generated signals to signals stored in memory. When two of the generated signals exceed the stored values, the SDM causes current to flow through the RF and LF seat belt pretensioners, deploying the seat belt pretensioners and causing DTC 67 to set.

CONDITIONS FOR RUNNING THE DTC
Ignition 1 voltage is within the normal operating voltage range.

CONDITIONS FOR SETTING THE DTC
The DTC will set when the SDM detects a frontal crash of sufficient force to warrant deployment of the seat belt pretensioners.

ACTION TAKEN WHEN THE DTC SETS
^ The SDM turns the AIR BAG indicator ON. The SDM records crash data.

CONDITIONS FOR CLEARING THE DTC
DTC 67 is a latched DTC. You cannot clear a latched DTC. Replace the SDM after following the instructions in the diagnostic table.

TEST DESCRIPTION

Steps 1-6: