TM 5-3895-385-23-1
FIELD MAINTENANCE
BITUMINOUS MATERIAL PAVING MACHINE (BMPM)
SPN#100, FMI#2 ― OIL PRESSURE SWITCH SENSOR CIRCUIT ERROR
INITIAL SETUP:
Test Equipment
References -- Continued
Multimeter (WP 0440, Vol 3, Item 37)
WP 0334, Vol 2
Personnel Required
WP 0357, Vol 2
91L
WP 0443, Vol 3
References
WP 0448, Vol 3
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.
NOTE
Some sensors share harness wiring. Malfunctions in certain sensors or in the engine ECM may
cause false errors to display because of this shared wiring. For this malfunction (SPN#100,
FMI#2), harness wiring is shared by the engine oil pressure switch, the barometric pressure
sensor, and the engine coolant temperature sensor.
Table 1. SPN#100, FMI#2 ― Oil Pressure Switch Sensor Circuit Error.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Oil pressure switch is
1. Disconnect engine ECM wiring
malfunctioning.
harness connector W25 C13
from oil pressure sensor (WP
0451, Vol 3, Figure 46).
2. Inspect oil pressure sensor and
1. If damaged, replace oil
connector pins for damage.
pressure switch (WP 0333, Vol
2).
2. If no damage is found, proceed
to next test.