Passport EX 4WD V6-3165cc 3.2L DOHC MFI (2001)
Air Bag(s) Arming and Disarming: Description and Operation
Definitions
Air Bag
An inflatable cloth cushion designed to deploy in certain frontal crashes. It supplements the protection offered by the seat belts by distributing the impact
load more evenly over the vehicle occupant's head and torso.
Asynchronous
Performed in a nonperiodic fashion, (i.e., no defined time or interval).
(B+)
Battery voltage, (B+) The voltage available at the battery at the time of the indicated measurement. With the key "ON" and the engine not running, the
system voltage will likely be between 12 and 12.5 volts. At idle the voltage may be 14 to 16 volts. The voltage could be as low as 10 volts during engine
cranking.
Bulb Check
The SDM will cause the "AIR BAG" warning lamp to flash seven times and then go "OFF" whenever the ignition switch transitions to the ON position
from any other ignition switch position and no malfunctions are detected.
"CONTINUOUS MONITORING"
Tests performed by the SDM on the SRS every 100 milliseconds while "Ignition 1" voltage is in the normal operating voltage range at the SDM.
Data Link Connector (DLC)
Formerly "DLC" a connector which allows communication with an external computer, such as a scan tool.
Datum Line
A base line parallel to the plane of the underbody or frame from which all vertical measurements originate.
Deploy
To inflate the air bag.
Deployment Loops
The circuits which supply current to the air bag assemblies to deploy the air bag.
Diagnostic Trouble Code (DTC)
Formerly "Code", a numerical designator used by the SDM to indicate specific SRS malfunctions.
Driver Current Source
An output of the SDM which applies current into the driver air bag assembly circuit during the "Initiator Assembly Resistance Test".
Driver Air Bag Assembly
An assembly located in the steering wheel hub consisting of an inflatable bag, an inflator and an initiator.
EEPROM
Electronically Erasable Programmable Read Only Memory. Memory which retains its contents when power is removed from the SDM.
Ignition Cycle
The voltage at the SDM "Ignition 1" inputs, with ignition switch "ON", is within the normal operating voltage range for at least ten seconds before
turning ignition switch "OFF".
Ignition 1