TM 5-2410-240-23-1
0019
Table 2. Engine Troubleshooting with Codes - Continued.
0019
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
1785-03 Intake Manifold Pressure
5. Using MSD (WP 0016), select
1785-03 Remains Active - Pro-
Sensor Voltage Above Normal
engine ECM C6.6 D6K and
ceed to Test Step 3.
Continued
check if diagnostic code 1785-
1785-04 Becomes Active - ECM
04 is active.
and signal circuit test OK. Sensor
is faulty. Replace air (boost) pres-
sure sensor (WP 0055).
Remove jumper wire from E-C7
(WP 0018, Figure 108) terminal 3
and terminal 2.
Connect E-C7 (WP 0018,
Figure 108) to air (boost) pressure
sensor.
Verify proper operation of machine
(TM 5-2410-240-10).
Test Step 3: Test Harness Sig-
nal Circuit.
1. Turn ignition switch and bat-
tery disconnect switch to OFF
position (TM 5-2410-240-10).
2. Leave jumper wire at air
(boost) pressure sensor har-
ness connector E-C7
(WP 0018, Figure 108) termi-
nal 2 and terminal 3 in place.
3. Disconnect engine ECM har-
ness connector E-C1
(WP 0018, Figure 102) from
engine ECM J2.
4. Using digital multimeter
Continuity - ECM faulty. Replace
(WP 0283), test for continuity
engine ECM (WP 0049).
between engine ECM har-
Remove jumper wire from E-C7
ness connector E-C1
(WP 0018, Figure 108) terminal 2
(WP 0018, Figure 102) termi-
and terminal 3.
nal 55 and terminal 38.
Connect E-C7 (WP 0018,
Figure 108) to air (boost) pressure
sensor.
Verify proper operation of machine
(TM 5-2410-240-10).
No Continuity - Engine control
wiring harness is open. Replace
engine control wiring harness
(WP 0052). Verify proper operation
of machine (TM 5-2410-240-10).
0019-109
