TROUBLESHOOTING WITH A DIAGNOSTIC CODE - CONTINUED
Table 3. Powertrain Control - Continued.
CID FMI CODE
TEST OR INSPECTION
(b) Disconnect connector J1 from ECM
0596 09 - Continued.
(WP 0063 00).
(c) Turn battery disconnect and engine
start switches to ON position (TM 5-
(d) At connector J1, measure voltage from 1. If voltage is correct, go to Test 3.
+battery terminals to negative battery 2. If voltage does not measure 18 to 35
DCV, ensure that proper ground is
available. If ground is correct, repair
power circuit. Also, check circuit
breakers (WP 0195 00 thru WP 0201
3. If conditions are not resolved, go to Test
3. Check CAT Data Link circuit for a short to
(a) Turn engine start and battery
disconnect switches to OFF position
(b) Inspect wiring harness connectors
related to circuits of CAT Data Link.
Ensure connector contacts are clean
(c) Disconnect wiring harness from all
modules (WP 0056 00, WP 0057 00,
WP 0060 00, and WP 0063 00).
(d) At wiring harness connector for ECM, 1. If resistance measurement is correct, go
measure resistance from contact J1-20
to Test 4.
(wire 945-BR) and contact J1-10 (wire 2. If resistance measurement is not correct,
944-OR) to all possible sources of
short is between J1-20 (wire 945-BR)
and circuit with low resistance
measurement or short is between J1-10
(wire 944-OR) and circuit with low
resistance measurement. Replace
wiring harness in question (WP 0195 00
thru WP 0201 00).
3. If conditions are not resolved, replace
powertrain ECM (WP 0063 00).
4. If problem remains present, exit this
procedure and repeat this procedure.