(1) Apply 12 V dc to contacts 1 and 2 (ground) and check for continuity between its contacts 3/5 and 4/6.
(2) Disconnect 12 V dc and measure for open circuit between its contacts 3/5 and 4/6
g. Switch (Rheostat) R2.
(1) Measure for open circuit between contacts 1 and 2 when switch is turned to the off position (fully
Turn switch on (clockwise) and attach multimeter leads to contacts 1 and 2. Note that resistance increases
from 0 to 100 Ohms as switch knob is turned from off to fully on position.
Panel Lights (DS1 through DS5).
(1) Briefly touch a 12 V dc source to terminal of each light assembly. All lamps should illuminate.
As required, operate start system and check pressure gauges, ammeter and hourmeter/tachometer for correct
Figure 4-42.1. Control Panel Wiring Harness (Model 350 PAWN).
4-82.2 Change 2