9J1–19
RESTRAINT CONTROL SYSTEM
DTC 17 Passenger Deployment Loop Open
D09R200001
Circuit Description:
When the ignition switch is turned “ON”, the SDM will
perform tests to diagnose critical malfunctions within
itself. Upon passing these tests, “ignition 1”, and
deployment loop voltages are measured to ensure they
are within their respective normal voltage ranges. During
“Continuous Monitoring” diagnostics, a fixed amount of
current is flowing in the deployment loop. This produces
proportional voltage drops in the loop. By monitoring the
voltage difference between “Passenger Bag High” and
“Passenger Bag Low”, the SDM calculates the combined
resistance of the passenger air bag assembly, harness
wiring CKTs IB07–YEL/GRN and IB08–YEL/RED, and
connector terminal contact.
DTC Will Set When:
The voltage difference between “Passenger Bag High”
terminal “15” and “Passenger Bag Low” terminal “16” is
above or equal to a specified value for 500 milliseconds
during “Continuous Monitoring”.
Action Taken:
SDM turns “ON” the “AIR BAG” warning lamp and sets a
diagnostic trouble code.
DTC Will Clear When:
The voltage difference between “Passenger Bag High”
terminal “15” and “Passenger Bag Low” terminal “16” is
below a specified value for 500 milliseconds during
“Continuous Monitoring”.