TM 5-3805-293-23-1
0011
Table 2. Engine Troubleshooting with Codes for the 120M Motor Grader - Continued.
CDI FMI CODE
ERROR/EVENT
CORRECTIVE ACTION
1589-03 Turbocharger Inlet
17. Disconnect the Engine ECM har-
Air Pressure Sensor Volt-
ness connector FA-C17 (WP
age Above Normal Code -
0009, Figure 14) from Engine
Continued
ECM J1.
18. Using a digital multimeter, test for
Continuity - Rear chassis wiring
continuity between Engine ECM
harness is shorted, replace rear
harness connector FA-C17 (WP
chassis wiring harness (WP 0189).
0009, Figure 14) terminal 55, and
No Continuity - ECM faulty, replace
all other terminals.
Engine ECM (WP 0067).
There should be no continuity.
Connect harness connector FE-C1
(WP 0009, Figure 27) to harness con-
nector FA-C18 (WP 0009, Figure 28).
Test Step 2. Test Return Circuit.
1. Turn the ignition switch and
battery disconnect switch to the
OFF position.
2. Disconnect harness connector
FE-C1 (WP 0009, Figure 27) from
harness connector FA-C18 (WP
0009, Figure 28).
3. Using a digital multimeter, test for
No Continuity - Fuel wiring harness
continuity between harness con-
is open, replace fuel wiring harness
nector FE-C1 (WP 0009, Figure
(WP 0064).
27) terminal 8 and terminal 9.
Continuity - (Resistance should be
less than 5.0 Ohms) - Proceed to
There should be good continuity.
step 4.
4. Remove jumper wire from har-
ness connector FE-C6 (WP 0009,
Figure 26) terminal B and terminal
C.
5. Connect harness connector FE-
C1 (WP 0009, Figure 27) to har-
ness connector FA-C18 (WP
0009, Figure 28).
6. Install a jumper wire between har-
ness connector FA-C18 (WP
0009, Figure 28) terminals 8 and
9.
7. Install a jumper wire between har-
ness connector FA-C18 (WP
0009, Figure 28) terminals 8 and
9.
0011-144
