TROUBLESHOOTING WITH A DIAGNOSTIC CODE - CONTINUED
Table 2. Machine Control System - Continued.
TEST OR INSPECTION
CID FMI CODE
2. Check implement lockout switch circuits
1. If each resistance measurement is
0490 03 -
for a short to +battery circuit.
greater than 5.000 Ohms, go to Test 3.
(a) Wiring harness connector(s) remain
2. If one or more measurements is less
disconnected from ECM.
than 5.0 Ohms, there is a short between
(b) Battery disconnect switch and engine
wire E917 WH and circuit with lowest
start switch remain in OFF position
resistance measurement, or between
wire E918 GN and circuit with lowest
(c) Disconnect contact 6 (wire E917 WH)
resistance measurement. Replace
and contact 4 (wire E918 GN) from
wiring harness in question (WP 0169
connector of implement lockout switch
00 thru WP 0175 00).
(WP 0049 00).
(d) At ECM wiring harness connector,
measure resistance from contact 6
(wire E917 J2-58) and contact 4 (wire
E918 GN) of wiring harness to all
contacts used in ECM wiring harness
3. Check implement lockout switch circuits in 1. If resistance is less than 5.0 Ohms, go
to Test 4.
(a) Wiring harness remains disconnected 2. If resistance is greater than 5,000
from ECM and switch.
Ohms, circuit is open. Replace wiring
(b) At switch harness connector, connect a
harness in question (WP 0169 00 thru
jumper wire between contact 6 (wire
WP 0175 00).
E917 WH) and contact 4 (wire E918
(c) At ECM harness connector, measure
resistance from contact J2-58 (wire
E917 WH) to contact J2-59 (wire E918