TM 5-3895-385-23-1
0211
Table 1. Left Control Pedestal Display Malfunction Troubleshooting Procedures -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Measure voltage (WP 0443, Vol
1. If voltage reads a minimum of 22
3) from W1 J31 Pin 7 to W1 J31
VDC, turn keyless engine switch
Pin 9 (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 22 VDC,
turn keyless engine switch to
the OFF position (TM 5-3895-
385-10), and proceed to next
malfunction.
6. 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 9 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. Disconnect W1 J4 connector
(WP 0451, Vol 3, Figure 3).
3. Measure for continuity (WP
1. If continuity is present, proceed
0443, Vol 3) between main
to next malfunction.
wiring harness W1 J31 Pin 7 and
main wiring harness W1 J4 Pin 3
(WP 0451, Vol 3, Figures 3 and
6).
2. If no continuity is present,
replace main wiring harness
(WP 0373, Vol 2).
7. Main wiring harness has a short
Measure for continuity (WP 0443,
1. If continuity is present, replace
circuit.
Vol 3) between main wiring harness
main hydraulic manifold wiring
W1 J31 Pin 7 and all other pins on
harness (WP 0373, Vol 2).
the main wiring harness W1 J31
(WP 0451, Vol 3, Figure 6).
2. If no continuity is present,
proceed to WP 0277, Vol 2.
8. Communication cable C12
Check communication cable C12 J1
1. If damage is found, replace
disconnected.
and J2 for proper connection and
communication cable C12 (WP
damage (WP 0386, Vol 2).
0386, Vol 2).
0211-3
