DTC 17

Test H: DTC 17 Passenger Initiator Circuit Open:

Supplemental Inflatable Restraint (SIR):

OPERATION:
When there is an open in the passenger inflator module the resistance between "Passenger Side High" terminal "A7" and "Passenger Side Low" terminal B7" increases. This causes a larger voltage drop from the "Passenger Side High" to the "Passenger Side Low" across a resistor inside the DERM which connects these two terminals together. The increase in the voltage difference between "Passenger Side High" and "Passenger Side Low" is detected by the DERM during the "Continuous Monitoring" tests and DTC 17 is set.

Test Conditions: Tested every 100 milliseconds during the "Continuous Monitoring" tests.

Failure Conditions: DTC 17 will set when the voltage difference between "Passenger Side High" terminal "A7" and "Passenger Side Low" terminal "B7" is above or equal to a specified value for 500 milliseconds.

Action Taken: DERM turns "ON" the "INFLATABLE RESTRAINT" warning lamp and sets a Diagnostic Trouble Code.

Conditions to Clear: DTC 17 will clear when the voltage difference between "Passenger Side High" terminal "A7" and "Passenger Side Low" terminal "B7" is below a specified value for 500 milliseconds.

POSSIBLE CAUSES:
Test Description: Number(S) below refer to circled number(S) on the diagnostic chart.
1. This test determines whether the malfunction is in the passenger inflator module.

DIAGNOSTIC AIDS:
This diagnostic trouble code will only set when there is an improper connection to the passenger inflator module or an open in the passenger inflator module or pigtail.