TM 5-2410-240-23-1
0019
Table 2. Engine Troubleshooting with Codes - Continued.
0019
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
1797-04 Fuel Rail Pressure Sensor
Test Step 1: Test Signal Circuit.
Voltage Below Normal
N OT E
Always inspect harness connectors that are involved in 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
a connection is found, correct the problem and verify diagnostic
code is active before performing this procedure.
Tag wiring harnesses to aid installation.
1. Connect MSD (WP 0016).
Select engine ECM C6.6 D6K.
2. Start and run engine (TM 5-
2410-240-10), and verify
1797-04 is active.
3. Turn ignition switch to OFF
position (TM 5-2410-240-10).
4. Disconnect fuel rail pressure
sensor harness connector
E-C6 (WP 0018, Figure 107).
5. Start and run engine (TM 5-
2410-240-10).
N OT E
Wait at least 30 seconds for diagnostic codes to become active.
1797-04 Remains Active - Pro-
6. Using MSD (WP 0016), select
ceed to Test Step 2.
engine ECM C6.6 D6K, and
check if diagnostic code 1797-
1797-03 Becomes Active - Fuel
03 is active.
rail pressure sensor is faulty.
Replace fuel rail pressure sensor
(WP 0054). Verify proper operation
of machine (TM 5-2410-240-10).
Test Step 2: Test Harness Sig-
nal Circuit.
1. Turn ignition switch and bat-
tery disconnect switch to OFF
position (TM 5-2410-240-10).
2. Disconnect harness connec-
tor E-C1 (WP 0018,
Figure 102) from engine ECM
J2.