BITUMINOUS MATERIAL PAVING MACHINE (BMPM)
SPN#108, FMI#4 ― LOW VOLTAGE AT BAROMETRIC PRESSURE CIRCUIT
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#108, FMI#4), the ECM
harness Supply and Return lines are shared by the barometric pressure sensor, the engine oil
pressure switch, and the engine coolant temperature sensor.
Table 1. SPN#108, FMI#4 ― Low Voltage at Barometric Pressure Circuit.
TEST OR INSPECTION
1. Multiple fault codes.
1. Install fuse box (WP 0277, Vol
2. Connect battery cables (WP
0357, Vol 2).
3. Turn keyless engine switch to
the AUX position (TM 5-3895-
385-10), but do not start engine.
Wait 30 seconds.