TM 5-3895-385-23-1
FIELD MAINTENANCE
BITUMINOUS MATERIAL PAVING MACHINE (BMPM)
SPN#1043, FMI#4 ― LOW VOLTAGE ON CRANKSHAFT SPEED/POSITION SENSOR SUPPLY LINE
INITIAL SETUP:
Personnel Required
References ― Continued
91L
WP 0334, Vol 2
References
WP 0357, Vol 2
WP 0277, Vol 2
WP 0451, Vol 3
WP 0332, Vol 2
Equipment Conditions
WP 0333, Vol 2
Engine off (TM 5-3895-385-10)
Engine hood assembly removed (WP 0433, Vol 2)
TROUBLESHOOTING PROCEDURE
CAUTION
All active fault codes must be investigated prior to replacing the engine Electronic Control Module
(ECM). Failure to comply may cause damage to equipment.
Table 1. SPN# 1043, FMI#4 ― Low Voltage on Crankshaft Speed/Position Sensor Supply Line.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Crankshaft speed/position
1. Disconnect engine ECM wiring
sensor or connector pins
harness connector W25 C12
damaged.
from crankshaft speed/position
sensor (WP 0451, Vol 3, Figure
46).
2. Inspect crankshaft
1. If damaged, replace crankshaft
speed/position sensor and
speed/position sensor (WP
connector pins for damage.
0333, Vol 2).
2. If no damage is found, proceed
to next test.
3. Inspect engine ECM wiring
1. If damaged, replace engine
harness connector W25 C12 for
ECM wiring harness (WP 0334,
damage.
Vol 2).
2. If no damage is found, proceed
to next malfunction.
2. Circuit response incorrect.
1. Install fuse box (WP 0277, Vol
2).