BITUMINOUS MATERIAL PAVING MACHINE (BMPM)
SPN#729, FMI#3 ― HIGH VOLTAGE AT INTAKE AIR HEATER SIGNAL CIRCUIT
References -- Continued
WP 0388, Vol 2
WP 0392, Vol 2
WP 0443, Vol 3
WP 0448, Vol 3
WP 0277, Vol 2
WP 0451, Vol 3
WP 0332, Vol 2
WP 0357, Vol 2
Engine off (TM 5-3895-385-10)
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 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#729,
FMI#3), harness wiring is shared by the intake manifold pressure/temperature sensor, the
camshaft position sensor, the water-in-fuel sensor, and the rail fuel pressure sensor.
Table 1. SPN#729, FMI#3 ― High Voltage at Intake Air Heater Signal Circuit.
TEST OR INSPECTION
1. Intake air heater relay and
1. Remove covers from intake air
heater relays (WP 0392, Vol 2).
2. Inspect wiring and intake air
1. If damaged, replace relay (WP
heater relay connections for
0392, Vol 2).
damage (WP 0392, Vol 2).
2. If not damaged, proceed to next