TM 5-3895-385-23-1
0184
Table 1. Left Console Horn Keypad Fault Troubleshooting Procedures -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. If voltage reads below 10 VDC,
turn keyless engine switch to
the OFF position (TM 5-3895-
385-10), and proceed to next
test.
7. Disconnect main wiring harness
W1 J31 from left pedestal wiring
harness W12 J2 (WP 0451, Vol
3, Figure 6).
8. Turn keyless engine switch to
the AUX position (TM 5-3895-
385-10), but do not start engine.
9. Measure voltage (WP 0443, Vol
1. If voltage reads a minimum of 10
3) from W1 J31 Pin 8 to W1 J31
VDC, turn keyless engine switch
Pin 10 (WP 0451, Vol 3, Figure
to the OFF position (TM 5-3895-
6).
385-10), and replace left
pedestal wiring harness (WP
0374, Vol 2).
2. If voltage reads below 10 VDC,
turn keyless engine switch to the
OFF position (TM 5-3895-385-
10), and proceed to next
malfunction.
3. Main wiring harness has an
1. Measure for continuity (WP
1. If continuity is present, proceed
open circuit.
0443, Vol 3) between main
to next test.
wiring harness W1 J31 Pin 8 and
a known good ground (WP 0451,
Vol 3, Figure 6).
2. If no continuity is present,
replace main wiring harness
(WP 0373, Vol 2).
2. Measure for continuity (WP
1. If continuity is present, proceed
0443, Vol 3) between main
to next malfunction.
wiring harness W1 J31 Pin 8 and
main wiring harness W1 J4 Pin 4
(WP 0451, Vol 3, Figures 3 and
6).
2. If no continuity is present,
replace main wiring harness
(WP 0373, Vol 2).
0184-3
