Table 2. Engine Troubleshooting with Codes - Continued.
CID FMI CODE
TEST OR INSPECTION
Sensor Voltage Below Normal
(WP 0283), test for continuity
harness is shorted. Replace
between engine ECM har-
engine control wiring harness
ness connector E-C1
(WP 0052). Verify proper operation
of machine (TM 5-2410-240-10).
nal 55 and ground.
faulty. Replace engine ECM
Figure 108) to air (boost) pressure
Verify proper operation of machine
Test Step 1: Test 5-Volt and Sig-
Sensor Abnormal Rate of Change
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.
Select engine ECM C6.6 D6K.
2. Start and run engine (TM 5-
1785-10 Active - Proceed to
2410-240-10), and verify
1785-10 is active.
3. Turn ignition switch to OFF
position (TM 5-2410-240-10).
4. Disconnect air (boost) pres-
sure sensor E-C7
5. Install jumper wire between air
(boost) pressure sensor E-C7
ness connector terminal 1 and
6. Disconnect harness connec-
Figure 102) from engine ECM