TROUBLESHOOTING WITH A DIAGNOSTIC CODE - CONTINUED
Table 4. Implement Control - Continued.
TEST OR INSPECTION
(c) Disconnect connector J1 from
0590 09 - Continued
implement ECM (WP 0060 00).
(d) Turn battery disconnect and engine
start switches to ON position (TM
(e) At connector J1, measure voltage
1. If voltage measures 18 DCV to 35 DCV,
between all possible sources of
go to Test 3.
positive voltage to all possible
2. If voltage measures less than 18 DCV,
sources of ground.
ensure ground is proper. Also, check
circuit breakers. If ground is OK, power
circuit has failed. Replace wiring harness
in question (WP 0195 00 thru WP 0201
00). If this does not resolve problem, go
to Test 4.
3. Check for a data link circuit short to
(a) Turn battery disconnect switch to
OFF position (TM 5-3805-291-10).
(b) Turn engine start switch to OFF
position (TM 5-3805-291-10).
(c) Disconnect and inspect wiring
harness connectors that are related
to CAT Data Link circuits (WP
contacts are clean and that
connectors are tight. Reconnect all
connectors. Refer to Electrical
Connectors Inspection (WP 0022
00) as necessary.
(d) Disconnect wiring harness from all
modules (WP 0056 00, WP 0057
00, WP 0060 00, and WP 0063 00).
(e) Measure resistance between CAT
1. If resistance is greater than 5,000 Ohms
Data Link connectors and all
for each measurement, go to Test 4.
possible sources of ground. CAT
Data Link connectors are J1-8 and
each measurement, short is between
5,000 Ohms and contact 9 (wire 945-BR)
and contact 8 (wire 944-OR). Replace
wiring harness in question (WP 0195 00
thru WP 0201 00).