TM 5-3895-385-23-1
0181
Table 1. Screed Controller Offline Fault Troubleshooting Procedures -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
6. Measure voltage (WP 0443, Vol
1. If voltage reads a minimum of 22
3) between main wiring harness
VDC, turn keyless engine switch
W1 J1 Pin 1 and W1 J1 Pin 50
to the OFF position (TM 5-3895-
(WP 0451, Vol 3, Figure 1).
385-10), and proceed to
malfunction 6.
2. If voltage reads below 22 VDC,
turn keyless engine switch to the
OFF position (TM 5-3895-385-
10), and replace main wiring
harness (WP 0373, Vol 2).
3. Fuse blown.
1. Access fuse box (WP 0277, Vol
2).
2. Measure for continuity (WP
1. If continuity is present, proceed
0443, Vol 3) across screed
to next malfunction.
controller fuse (WP 0447, Vol 3,
Figure 1).
2. If no continuity is present,
replace screed controller fuse
(WP 0277, Vol 2).
4. 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 J1 Pin 1 and
known good ground (WP 0451,
Vol 3, Figure 1).
2. If no continuity is present,
replace main wiring harness
(WP 0373, Vol 2).
2. Disconnect main wiring harness
W1 J4 from fuse box (WP 0451,
Vol 3, Figure 1).
3. Measure for continuity (WP
1. If continuity is present, proceed
0443, Vol 3) between main
to next malfunction.
wiring harness W1 J1 Pin 50 and
main wiring harness W1 J4 Pin
25 (WP 0451, Vol 3, Figure 1).
2. If no continuity is present,
replace main wiring harness
(WP 0373, Vol 2).
0181-3