TM 5-2420-231-23-1
0028
Table 1. Engine Grid Heater Indicator Fault - Continued.
028
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. Pull the red lock lever (Figure 4,
Engine Grid Heater Indicator
Item 3) outward toward the rear of
Fault - Continued
the machine, while slightly pulling
downward on heater grid controller
wiring harness connector (Figure
4, Item 2) (WP 0007, Figure 11) to
disconnect it from heater grid con-
troller (Figure 4, Item 1) (WP 0007,
Figure 12).
Figure 4. Heater Grid Controller.
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3. Using a digital multimeter, test for
Continuity - Proceed to Test Step 4.
continuity between side console
No Continuity - Proceed to Test Step 6.
wiring harness connector (WP
0007, Figure 28) terminal 16 and
machine ground. There should be
no continuity.
Test Step 4. Check for Shorted Main
Chassis Wiring Harness.
1. Remove front instrument panel
right-side cover (WP 0176).