TM 5-3895-385-23-1
0156
Table 1. Crown Down Fault 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 proceed to next
malfunction.
3. Propel controller (Electronic
1. Disconnect main wiring harness
Control Module (ECM)) has
W1 J2 from propel controller
damage or loose pin.
module ECM (WP 0451, Vol 3,
Figure 2).
2. Check propel controller module
1. If propel controller module ECM
ECM for damage or loose pin.
has damage or loose pin,
replace propel controller module
ECM (WP 0399, Vol 2).
2. If no damage is found, proceed
to next malfunction.
4. Main wiring harness has an
Measure for continuity (WP 0443,
1. If no continuity is present,
open circuit.
Vol 3) between main wiring harness
replace main wiring harness
W1 J2 Pin 36 and main wiring
(WP 0373, Vol 2).
harness W1 J19 Pin 1 (WP 0451,
Vol 3, Figures 1 and 2).
2. If continuity is present, proceed
to next malfunction.
5. 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 wiring harness (WP 0373,
W1 J2 Pin 36 and all other pins on
Vol 2).
the main wiring harness W1 J2 (WP
0451, Vol 3, Figure 2).
2. If no continuity is present,
replace propel controller module
ECM (WP 0399, Vol 2).
END OF WORK PACKAGE
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