Supplemental Inflatable Restraint (SIR)

Diagnostic Chart:

Wiring Diagram:

CIRCUIT DESCRIPTION
The DERM monitors the voltage at the "Driver Source Sense" terminal "A5," the "Driver Side High" terminal "B9" and the "Driver Side Low" terminal "B8" during the "Continuous Monitoring" tests When all voltages are simultaneously below a specified value for 500 milliseconds DTC 14 sets.

DTC WILL SET WHEN
The voltages at terminals "A5","B9" and "B8" of the DERM harness connector are simultaneously below a specified value for 500 milliseconds.

ACTION TAKEN
DERM turns "ON" the "AIR BAG" warning lamp and sets a diagnostic trouble code.

DTC WILL CLEAR WHEN
The voltage at terminal "A5," "B9" or "B8" of DERM harness connector is above specified value for 500 milliseconds.

DTC CHART TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.
1. This test checks for a situation which prevents a proper connection of the arming sensor to the SIR wiring harness.

DIAGNOSTIC AIDS
It is highly unlikely that an intermittent condition has set this diagnostic trouble code as this would require a poor connection at terminals "A" and "B" or at terminals "C" and "D".