BITUMINOUS MATERIAL PAVING MACHINE (BMPM)
SPN#110, FMI#4 ― ENGINE COOLANT TEMPERATURE SENSOR VOLTAGE BELOW NORMAL
References -- Continued
WP 0334, Vol 2
WP 0357, Vol 2
WP 0443, Vol 3
WP 0451, Vol 3
WP 0277, Vol 2
WP 0332, Vol 2
Engine off (TM 5-3895-385-10)
WP 0333, Vol 2
Engine hood assembly removed (WP 0433, Vol 2)
All active fault codes must be investigated prior to replacing the engine Electronic Control Module
(ECM). Failure to comply may cause damage to equipment.
Some ECM wiring harness Supply and Return signal lines are shared by more than one ECM
sensor. Problems affecting ECM sensors that share lines can result in display of several
malfunctions (SPN and FMI codes) at the same time. ECM problems that affect shared lines can
also produce several malfunction codes. For this malfunction (SPN#110, FMI#4), the ECM
harness Supply and Return lines are shared by the engine coolant temperature sensor, the
barometric pressure sensor, and the engine oil pressure switch.
Table 1. SPN#110, FMI#4 ― Engine Coolant Temperature Sensor Voltage Below Normal.
TEST OR INSPECTION
1. Engine coolant temperature
1. Disconnect engine ECM wiring
harness connector W25 C14
from engine coolant temperature
sensor (WP 0451, Vol 3, Figure
2. Inspect engine coolant
1. If damaged, replace sensor
temperature sensor and
(WP 0333, Vol 2).
connector pins for damage.
2. If not damaged, proceed to