TM 5-3895-385-23-1
0018
Table 1. SPN#105, FMI#3 ― Intake Manifold Air Temperature Sensor
Voltage Above Normal -- Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. If fault code SPN#105, FMI#3
is not displayed, turn keyless
engine switch to the OFF
position (TM 5-3895-385-10).
No fault present; restore
equipment to original condition.
2. ECM malfunction.
1. Disconnect engine ECM wiring
harness connector W25 C1 from
engine ECM (WP 0451, Vol 3,
Figure 45).
2. Inspect engine ECM wiring
1. If damaged, replace engine
harness connector W25 C1 and
ECM wiring harness (WP 0334,
connector pins for damage.
Vol 2).
2. If not damaged, proceed to
next test.
3. Inspect engine ECM connector
1. If damaged, replace engine
and connector pins for damage.
ECM (WP 0332, Vol 2).
2. If not damaged, proceed to
next test.
4. Disconnect C11 J2 from Y4 (WP
0451, Vol 3, Figure 49) and C3
J2 from Y14 (WP 0451, Vol 3,
Figure 49).
5. Place a jumper wire between the
intake manifold air temperature
sensor SIGNAL pin (pin 23) and
intake manifold air pressure/
temperature sensor RETURN
pin (pin 47) at the ECM (WP
0451, Vol 3, Figure 45).
6. Turn keyless engine switch to
the AUX position (TM 5-3895-
385-10), but do not start engine.
Wait 30 seconds.
7. Check active engine faults
1. If fault code SPN#105, FMI#4
screen for fault code SPN#105,
is displayed, turn keyless
FMI#4.
engine switch to the OFF
position (TM 5-3895-385-10),
and proceed to next
malfunction.
0018-3
