DTC 17 - Passenger Initiator Circuit Open

WARNING: This page is about a different car, the 1995 Suzuki Swift and 1995 Geo Metro. However, it is still accessible from the selected car via links, so may be relevant.

Every time ignition switch is turned to ON position, SDM performs a series of self tests to check for internal malfunctions. If no internal faults are detected, SDM measures voltages in ignition 1, 36 VLR (back-up power supply), and deployment loop circuits. If all of these circuit voltages are within pre-defined parameters, SDM will measure resistance of passenger-side inflator module. This is accomplished by allowing a small amount of current to flow from A6 terminal, through passenger-side inflator module and back to SDM via A5 terminal. Voltage drop between two terminals is used to calculate resistance of inflator module. After this calculation is complete, SDM removes ground signal from A5 terminal and measures voltage at A6 and A5 terminals. If an open circuit is detected (resistance above a specified limit), SDM will set DTC 17. If this fault is occurring intermittently, most probable causes are a poor connection at passenger-side inflator module or SDM, or a damaged SIR wiring harness.

NOTE: Test numbers below refer to test numbers in chart.

Discriminates between a faulty passenger-side inflator module and a faulty SIR wiring harness.
Checks continuity of Yellow/Red wire between SDM terminal A6 and passenger-side inflator module terminal B2.
Checks continuity of Yellow wire between SDM terminal A5 and passenger-side inflator module terminal B1.

WARNING: To avoid air bag deployment and injury when trouble shooting system, only use test equipment specified in diagnostic charts. Under no circumstances should battery powered test equipment or test light be used. Carefully follow all instructions.

Fig 1: DTC 17 - Passenger Initiator Circuit Open

Courtesy of GENERAL MOTORS CORP.