DTC 83

�� Diagnostic Chart:

Wiring Diagram:

CIRCUIT DESCRIPTION
During the "Turn-ON" tests, performed at the beginning of each ignition cycle, the DERM delays the charging of the "Driver 36 VLR" and "Passenger 36 VLR" power supplies. While the delay is active the DERM measures the voltage at the "Driver 36 VLR" terminal "A4," "Passenger 36 VLR" terminal "A3," "Driver Source Sense" terminal "A5," and "Passenger Source Sense" terminal "A6." When the driver reserve diode is shorted "Ignition 1" voltage is measured at "Driver 36 VLR" from the forward biased driver ignition diode. When the voltage measured at "Driver 36 VLR" is within a specified range of "Ignition 1" voltage for eight consecutive "Turn-ON" tests History DTC 83 is set.

TEST CONDITIONS
Tested once each ignition during the "Turn-ON" test while the "36 VLR delay" is active.

FAILURE CONDITIONS
History DTC 83 is set when the voltage measured at "Driver 36 VLR" terminal "A4" is within a specified range of "Ignition 1" voltage for eight consecutive "Turn-ON" tests and no "higher priority faults" are detected.

ACTION TAKEN
DERM sets a history diagnostic trouble code.

CONDITIONS TO CLEAR
History DTC 83 will clear when the voltage measured at "Driver 36 VLR" terminal "A4" indicated that the power supply is in a discharged state during "Turn-ON" tests.

TEST DESCRIPTION
Number(s) below refer to circled number(s) on the diagnostic chart.
1. This test determines whether the malfunction is due to a shorted driver reserve diode within the dual pole arming sensor or a malfunctioning DERM.