TM 5-3895-385-23-1
0189
Table 1. Right Console Horn Keypad Fault Troubleshooting Procedures -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Measure for continuity (WP
1. If continuity is present, replace
0443, Vol 3) between
communication connector Y8
communication connector Y8 P1
(WP 0386, Vol 2).
Pin C and all other pins on Y8
P1 (WP 0451, Vol 3, Figure 48).
2. If no continuity is present,
proceed to next malfunction.
36. Communication connector Y7
1. Measure for continuity (WP
1. If continuity is present, proceed
has an open circuit.
0443, Vol 3) between
to next test.
communication connector Y7 P1
Pin A and Y7 P2 Pin A (WP
0451, Vol 3, Figure 51).
2. If no continuity is present,
replace communication
connector Y7 (WP 0386, Vol 2).
2. Measure for continuity (WP
1. If continuity is present, proceed
0443, Vol 3) between
to next test.
communication connector Y7 P1
Pin A and Y7 P3 Pin A (WP
0451, Vol 3, Figure 51).
2. If no continuity is present,
replace communication
connector Y7 (WP 0386, Vol 2).
3. Measure for continuity (WP
1. If continuity is present, proceed
0443, Vol 3) between
to next test.
communication connector Y7 P1
Pin B and Y7 P2 Pin B (WP
0451, Vol 3, Figure 51).
2. If no continuity is present,
replace communication
connector Y7 (WP 0386, Vol 2).
4. Measure for continuity (WP
1. If continuity is present, proceed
0443, Vol 3) between
to next test.
communication connector Y7 P1
Pin B and Y7 P3 Pin B (WP
0451, Vol 3, Figure 51).
2. If no continuity is present,
replace communication
connector Y7 (WP 0386, Vol 2).
0189-21