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
1589-04 Turbocharger Inlet
13. Install a jumper on connector FA-
Air Pressure Sensor Volt-
C18 (WP 0009, Figure 28) termi-
age Below Normal Code -
nal 9 and terminal 8.
Continued
14. Test for continuity between ECM
Continuity - (Resistance should be
harness connector FA-C17 (WP
less than 5.0 Ohms) - Engine ECM
0009, Figure 14) terminals 34 and
faulty, replace Engine ECM (WP
55.
0067).
Connect harness connector FE-C1
There should be good continuity.
(WP 0009, Figure 27) to harness con-
nector FA-C18 (WP 0009, Figure 28).
Connect the turbocharger inlet air
pressure sensor harness connector
FE-C6 (WP 0009, Figure 26).
No Continuity - Rear chassis wiring
harness is open, replace rear chassis
wiring harness (WP 0189).
Connect the turbocharger inlet air
pressure sensor harness connector
FE-C6 (WP 0009, Figure 26).
Test Step 2. Test 5-Volt Circuit.
1. Turn the ignition 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. Turn the ignition switch to the ON
position.
4. Using a digital multimeter, mea-
Voltage OK - (4.84-5.16 Volts) -
sure for voltage between harness
Replace fuel wiring harness (WP
connector FA-C18 (WP 0009, Fig-
0064).
ure 28) terminal 7 and ground.
Voltage NOT OK - Proceed to step 5.
Voltage should be within 4.84 - 5.16
Volts.
5. Turn the ignition switch and bat-
tery disconnect switch to the OFF
position.
6. Disconnect harness connector
FA-C17 (WP 0009, Figure 14)
from Engine ECM J1 (WP 0067).
7. Install a jumper wire on connector
FA-C18 (WP 0009, Figure 28)
between terminals 7 and 8.
Change 1