TM 5-3895-385-23-1
0164
Table 1. Lights Relay Fault Troubleshooting Procedures -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Measure voltage (WP 0443, Vol
1. If voltage reads a minimum of
3) from known good ground to
22 Volts Direct Current (VDC),
relay connection point 86 (WP
turn keyless engine switch to
0447, Vol 3, Figure 4, Item 2) on
the OFF position (TM 5-3895-
lights relay (WP 0447, Vol 3,
385-10), and replace lights relay
Figure 3).
(WP 0277, 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.
3. Screed controller (ECM) has
1. Disconnect main wiring harness
damage or loose pin.
W1 J1 from screed controller
module ECM (WP 0451, Vol 3,
Figure 1).
2. Check screed controller module
1. If screed controller module ECM
ECM for damage or loose pin.
has damage or loose pin,
replace screed controller module
ECM (WP 0399, Vol 2).
2. If no damage is found, proceed
to next malfunction.
4. Main wiring harness has
Check main wiring harness W1 J1
1. If main wiring harness has
damage or loose pin.
for damage or loose pin (WP 0451,
damage or loose pin, repair or
Vol 3, Figure 1).
replace main wiring harness
(WP 0373, Vol 2).
2. If no damage is found, proceed
to next malfunction.
5. Main wiring harness has an
1. Disconnect W1 J4 (WP 0451,
open circuit.
Vol 3, Figure 3).
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