TROUBLESHOOTING WITH A DIAGNOSTIC CODE - CONTINUED
Table 2. Machine Control System - Continued.
TEST OR INSPECTION
CID FMI CODE
2. Check sensor wiring harness for a short to 1. If each resistance measurement is
0426 04 -
greater than 5,000 Ohms, go to Test 3.
(a) Turn engine start switch and battery
2. If one or more resistance
disconnect switch to OFF position (TM
measurements is not correct, there is a
short in wiring harness between signal
(b) Disconnect wiring harness from sensor
contact J1-37 (wire C949 YL) and
(WP 0072 00).
circuit with low resistance
(c) Disconnect wiring harness
measurement. Replace wiring harness
connector(s) from machine ECM (WP
in question (WP 0169 00 thru WP 0175
(d) At ECM wiring harness connector,
J1-37 (wire C949 YL) of wiring
harness to all possible sources of
ground. Measure resistance to all ECM
wiring harness connector contacts.
3. Verify diagnostic code remains active.
1. If CID 0426 FMI 04 is active, replace
(a) Inspect and clean harness connector
machine ECM (WP 0052 00).
2. If CID 0426 FMI 04 is not active, initial
(b) Reconnect all harness connectors.
diagnostic code was probably caused
(c) Turn battery disconnect switch and
by a poor electrical connection or a
engine start switch to ON position (TM
short at a harness connector that was
disconnected and reconnected.
(d) Operate machine (TM 5-3805-290-
Resume normal machine operation.
status of CID 0426 FMI 04.