Chart B Indic Illum Steady, Key In ACC/on & DTC Diag Enabled

CIRCUIT DESCRIPTION
When the ignition switch is first turned to "ACC" or "ON," system voltage is applied from the ECU-B fuse to the "AIR BAG" indicator (located in the instrument cluster). The "AIR BAG" indicator is connected to the "Diagnosis and Memory Circuits," terminal "B12", of the center sensor assembly. The CIG & RADIO fuse and the IGN fuse apply system voltage to the center sensor assembly at the "DC-DC Converter" input, terminals "B13" and "B14". The center sensor assembly responds by illuminating the "AIR BAG" indicator for approximately six seconds.

TEST DESCRIPTION:
Number(s) below refer to circled number(s) on the diagnostic chart.
1. This lest checks to see if junction connector 3 is faulty.
2. This test checks for a short to ground in TC1 and TC2 CKTs.
3. This lest determines whether the fault is due to a short to ground in TC3 CKT or a faulty center sensor assembly.