TM 5-3895-385-23-1
0189
Table 1. Right Console Horn Keypad Fault Troubleshooting Procedures -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. Measure for continuity (WP
1. If continuity is present, proceed
0443, Vol 3) between
to next test.
communication connector Y7 P1
Pin C and Y7 P2 Pin C (WP
0451, Vol 3, Figure 51).
2. If no continuity is present,
replace communication
connector Y7 (WP 0386, Vol 2).
6. Measure for continuity (WP
1. If continuity is present, proceed
0443, Vol 3) between
to next malfunction.
communication connector Y7 P1
Pin C and Y7 P3 Pin C (WP
0451, Vol 3, Figure 51).
2. If no continuity is present,
replace communication
connector Y7 (WP 0386, Vol 2).
37. Communication connector Y7
1. Measure for continuity (WP
1. If continuity is present, replace
has a short circuit.
0443, Vol 3) between
communication connector Y7
communication connector Y7 P1
(WP 0386, Vol 2).
Pin A and all other pins on Y7
P1 (WP 0451, Vol 3, Figure 51).
2. If no continuity is present,
proceed to next test.
2. Measure for continuity (WP
1. If continuity is present, replace
0443, Vol 3) between
communication connector Y7
communication connector Y7 P1
(WP 0386, Vol 2).
Pin B and all other pins on Y7
P1 (WP 0451, Vol 3, Figure 51).
2. If no continuity is present,
proceed to next test.
3. Measure for continuity (WP
1. If continuity is present, replace
0443, Vol 3) between
communication connector Y7
communication connector Y7 P1
(WP 0386, Vol 2).
Pin C and all other pins on Y7
P1 (WP 0451, Vol 3, Figure 51).
2. If no continuity is present,
proceed to next malfunction.
0189-22