TM 5-3895-385-23-1
0015
Table 1. SPN# 102, FMI# 4 ― Intake Manifold Pressure Low Signal Voltage -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4. Check active engine faults
1. If fault code SPN#3510, FMI#4 is
screen for fault code
active, turn keyless engine switch
SPN#3510, FMI#4.
to the OFF position (TM 5-3895-
385-10), and proceed to
SPN#3510, FMI#4 troubleshooting
procedure.
2. If fault code SPN#3510, FMI#4 is
not displayed, proceed to next
malfunction.
2. Intake manifold pressure
1. Disconnect engine ECM wiring
sensor malfunction.
harness connector W25 C7 from
intake manifold
pressure/temperature sensor
(WP 0451, Vol 3, Figure 45).
2. Inspect intake manifold
1. If damaged, replace sensor (WP
pressure/temperature sensor
0333, Vol 2).
and connector pins for damage.
2. If not damaged, proceed to next
test.
3. Inspect engine ECM wiring
1. If damaged, replace ECM wiring
harness connector W25 C7 for
harness (WP 0334, Vol 2).
damage.
2. If not damaged, proceed to next
malfunction.
3. Intake manifold pressure
1. Turn keyless engine switch to
sensor supply voltage is
the AUX position (TM 5-3895-
incorrect.
385-10), but do not start engine.
1. If supply voltage is between 4.75
at engine ECM wiring harness
and 5.25 Volts Direct Current
connector W25 C7 +5 volt
(VDC), turn keyless engine switch
SUPPLY pin (pin 2) to intake
to the OFF position (TM 5-3895-
manifold pressure RETURN pin
385-10), and proceed to next test.
(pin 4) (WP 0443, Vol 3 and WP
0451,Vol 3, Figure 45).
2. If supply voltage is not between
4.75 and 5.25 VDC, turn keyless
engine switch to the OFF position
(TM 5-3895-385-10), and proceed
to malfunction 4.
0015-2