TM 5-3895-385-23-1
0171
Table 1. Brake Valve Fault Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Attempt to drive BMPM forward
using joysticks (TM 5-3895-385-
10).
4. Measure voltage (WP 0443, Vol
1. If voltage reads a minimum of 22
3) between pin 1 and 2 on W1
Volts Direct Current (VDC),
J21 (WP 0451, Vol 3, Figure 4)
brake release solenoid (WP
while attempting to drive BMPM
0315, Vol 2).
forward.
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 continuity is present, proceed
open circuit.
Vol 3) between main wiring harness
to next malfunction.
W1 J2 Pin 31 and main wiring
harness W1 J21 Pin 1 (WP 0451,
Vol 3, Figures 2 and 4).
2. If no continuity is present,
replace main wiring harness
(WP 0373, Vol 2).
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 31 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
0171-2
