TM 5-3805-293-23-2
0030
Table 1. Implement Code (2169-03 to 2182-13) Troubleshooting Procedures - Continued.
CDI FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
2181-05 Blade Pitch Forward System Response:
Solenoid Current Below Nor- ECM will log diagnostic code.
mal
N OT E
Always inspect the harness connectorsthat are involved in the circuit.
Poor connections can often be the cause of a problem in an electrical
circuit. Verify that all connections in the circuit are clean and secure,
and that all connections are in good condition. If a problem with a con-
nection is found, correct the problem and verify that this diagnostic code
is active before performing this procedure.
Perform open or short circuit test ateach harness connection to identify
correct harness to replace.
Perform this test only if condition is active.
Test Step 1. Test for Active Code.
1. Using MSD (WP 0006), select
2181-05 Code Active - Proceed to
implement 120M and verify 2181-
Test Step 2.
05 is active.
2181-05 Code Not Active -
Troubleshooting complete.
Test Step 2. Test for Faulty Blade
Pitch Forward Solenoid.
1. Turn ignition switch and battery
disconnect switch to the OFF
position.
2. Disconnect front attachment wir-
ing harness connector U-C41
(WP 0009, Figure 232) from blade
pitch forward solenoid (WP 0009,
Figure 233) (WP 0180).
3. Connect jumper wire between
front attachment wiring harness
connector U-C41 (WP 0009, Fig-
ure 232) terminal 1 and terminal
2.
2181-06 Code Active - Replace
4. Using MSD (WP 0006), select
blade pitch forward solenoid (WP
implement 120M and check if
0245).
code 2181-06 becomes active.
Proceed to step 5.
2181-05 Code Remains Active -
Proceed to Test Step 3.
5. Using MSD (WP 0006), select
2181-05 Code Active - Repeat
implement 120M ECM and verify
troubleshooting code from the
2181-05 is not active.
beginning.
2181-05 Code Not Active -
Troubleshooting complete.
0030-51