Supplemental Inflatable Restraint (SIR)

CIRCUIT DESCRIPTION
DTC 35 is set when the voltage at the "Sense Low" input, terminal "A6," is within a specific range of the "36 VLR" output voltage for 500 milliseconds during the "Continuous Monitoring" tests performed by the DERM. The "Continuous Monitoring" tests are performed by the DERM after the initial "Turn-ON" tests are completed and are performed every 100 milliseconds while "Ignition 1" voltage is present at the DERM. If one of the discriminating sensors is open the voltage at the "Sense Low" input will increase due to the increase in the resistance of the discriminating sensor section of the deployment loop and DTC 35 will set.

TEST CONDITIONS
Tested every 100 milliseconds during "Continuous Monitoring."

FAILURE CONDITIONS
DTC 35 will set if the voltage at the "Sense Low" input, terminal "A6," is within a specific range of "36 VLR" output voltage for 500 milliseconds and the "36 VLR" output voltage is in range.

ACTION TAKEN
DERM turns "ON" the "INFL REST" warning lamp.

CONDITIONS TO CLEAR
Current DTC 35 will clear if the voltage at the "Sense Low" input, terminal "A6," is within a specific range of "36 VLR" output voltage for 500 milliseconds.

TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.
1. This test checks for proper resistance of the LH forward discriminating sensor.
2. This test checks for proper resistance of the RH forward discriminating sensor.
3. This test checks for an open in the discriminating sensor interconnect CKT 349.
4. This test checks for an open in the LH forward discriminating sensor ground circuit.
5. This test checks for an open in the RH forward discriminating sensor ground circuit.