TM 5-3895-385-23-1
0161
Table 1. Horn Fails To Sound Troubleshooting Procedures -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. If voltage reads below 22 VDC,
turn keyless engine switch to
the OFF position (TM 5-3895-
385-10), and replace screed
controller module ECM (WP
0399, Vol 2).
7. Horn malfunction.
1. Disconnect W1 J47 on main
wiring harness (WP 0451, Vol 3,
Figure 14).
2. Turn keyless engine switch to
the AUX position (TM 5-3895-
385-10), but do not start engine.
3. Press and hold horn button on
left control pedestal (TM 5-3895-
385-10).
4. Measure voltage (WP 0443, Vol
1. If voltage reads below 22 VDC,
3) from known good ground to
turn keyless engine switch to the
W1 J47 on main wiring harness
OFF position (TM 5-3895-385-
(WP 0451, Vol 3, Figure 14).
10), and replace main wiring
harness (WP 0373, Vol 2).
2. If voltage reads a minimum of 22
VDC, turn keyless engine switch
to the OFF position (TM 5-3895-
385-10), and replace horn (WP
0372, Vol 2).
END OF WORK PACKAGE
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