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
0003-02 Cylinder #3 Injector
System Response:
Erratic, Intermittent, or
A warning will appear on instrument
Incorrect
panel. An active diagnostic code will
be generated. ECM will log diagnostic
code.
Possible Performance Effect:
Engine will be derated while this diag-
nostic code is active.
N OT E
The fuel injectors are electro-mechanical devices. High-pressure fuel is
continuously available to each injector. The Engine Electronic Control
Module (ECM) determines the correct time and duration to activate
each injector.
Test Step 1. Check for Fuel Injector
Diagnostic Codes.
N OT E
Injectors 1-3 share a common ground in the Engine ECM. A failure of
the ECM could cause all three codes to appear.
Injectors 4-6 share a common ground in the Engine ECM. A failure of
the ECM could cause all three codes to appear.
1. Connect MSD (WP 0006). Select
0001-05, 0002-05, and 0003-05
Engine ECM C6.6 120M.
Diagnostic Codes are Active -
2. Start engine or attempt to start
Replace the Engine ECM (WP 0067).
engine.
0004-05, 0005-05, and 0006-05 Diag-
3. At the MSD check if all three diag- nostic Codes are Active - Replace
nostic codes 0001-05, 0002-05,
the Engine ECM (WP 0067).
and 0003-05 are active.
0003 -02 Only Active - Proceed to
Test Step 2.
4. At the MSD, check if all three
diagnostic codes 0004-05, 0005-
05, and 0006-05 are active.
Test Step 2. Replace Fuel Injector.
1. Replace fuel injector #3 (WP
All Six Injectors Indicate Success -
0075).
Fault has been cleared.
2. Perform Fuel System Verification
Injector #2 Indicates Fail - Proceed
Test (WP 0035).
to Test Step 3.
Test Step 3. Check ECM Flash
Files.
Verify correct Engine ECM flash files
Flash Files Bad - Replace ECM flash
files (WP 0008).
Flash Files Good - Replace Engine
ECM (WP 0067).
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