TM 5-3805-298-23-1
0045
Table 1. 4 Fuel Injector 4 Diagnostic Codes - Continued.
045
CID FMI CODE
TEST OR INSPECTION
CORRECTIVE ACTION
NOTE
4-6 Fuel Injector 4 Current
Above Normal
Always inspect wiring harness connectors that 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 the
connection is found, correct the problem and verify that this malfunction
or diagnostic code is active before performing this procedure.
Perform open or short-circuit test at each wiring harness connection to
identify the correct wiring harness to replace.
Tag all wiring harnesses to aid in installation.
Perform this test only if condition is active.
DIAGNOSTIC CODE SET CONDITION
Engine ECM detects abnormally high current on fuel injector 4.
POSSIBLE CAUSE
Engine control wiring harness wiring harness shorted.
Injector cylinder 3 and 4 jumper harness shorted.
Fuel injector 4.
Engine ECM.
Test Step 1. Check for Active
Diagnostic Codes.
1. Connect MSD and select C6.6 924
2. Start engine or attempt to start
Diagnostic Code 4-6 Active - Proceed
engine (TM 5-3805-298-10) while
to Test Step 2.
using MSD to check for active
Diagnostic Code 4-6 Not Active -
diagnostic codes (WP 0008).
Troubleshooting is complete.
Test Step 2. Isolate Fault.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Disconnect connector E-C13
(WP 0012, Figure 6) from
connector EG-C1 (WP 0012,
Figure 5).
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
