TM 5-2410-240-23-1
0019
Table 2. Engine Troubleshooting with Codes - Continued.
0019
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
1779-06 Fuel Rail #1 Pressure Valve
Test Step 1: Verify Diagnostic
Solenoid Current Above Normal
Code is Active.
N OT E
Always inspect harness connectors that are involved in the
circuit. Poor connections can often be the cause of an electrical
circuit problem. Verify that all connections in circuit are clean and
secure, and connections are in good condition. If a problem with
connection is found, correct the problem and verify diagnostic
code is active before performing this procedure.
Tag wiring harnesses to aid installation.
Perform Fuel Rail Pump Solenoid
1779-06 Active - Proceed to Test
Test (WP 0026) and check if diag-
Step 2.
nostic code 1779-06 becomes
active.
Test Step 2: Test Solenoid Con-
trol Circuit.
1. Turn ignition switch to OFF
position (TM 5-2410-240-10).
2. Disconnect harness connec-
tor E-C2 (WP 0018, Figure
103) from fuel rail pump sole-
noid.
3. Turn ignition switch to ON
position (TM 5-2410-240-10).
N OT E
Wait at least 30 seconds for diagnostic codes to become active.
1779-06 Remains Active - Pro-
4. Perform Fuel Rail Pump Sole-
ceed to Test Step 3.
noid Test (WP 0026) and
check if diagnostic code 1779-
1779-05 Becomes Active - ECM
05 becomes active.
and circuits test OK, fuel rail pump
solenoid faulty. Replace fuel injec-
tion pump (WP 0075). Verify
proper operation of machine
(TM 5-2410-240-10).
Test Step 3: Test Harness Sole-
noid Control Circuit.
1. Turn ignition switch and bat-
tery disconnect switch to OFF
position (TM 5-2410-240-10).
