TROUBLESHOOTING WITH A DIAGNOSTIC CODE - CONTINUED
Table 3. Powertrain Control - Continued.
CID FMI CODE
TEST OR INSPECTION
4. Check wiring harness.
0627 03 - Continued.
(a) Turn battery disconnect and engine
start switches to OFF position (TM 5-
(b) Wiring harness remains disconnected
(c) Disconnect wiring harness
connector(s) from powertrain ECM
(WP 0063 00).
1. If each resistance measurement is less
J2-53 (wire 419-YL) and J2-52 (wire
than 5 Ohms, go to Test 5.
G764-PK) of the wiring harness to all
2. If one or more resistance measurements
contacts used in wiring harness
is less than 5 Ohms, short is between J2-
connectors for ECM.
53 (wire 419-YL) and circuit with
52 (wire G764-PK) and circuit with
lowest resistance. Replace wiring
harness in question (WP 0195 00 thru
WP 0201 00).
5. Check switch circuits in wiring harness.
(a) Wiring harness remains disconnected
from ECM and switch.
(b) At wiring harness connector for switch,
connect a jumper wire between contact
B (wire 419-YL) and contact C (wire
1. If resistance is less than 5 Ohms, go to
(c) At wiring harness connector for ECM,
measure resistance from contact J2-53
(wire 419-YL) to contact J2-52 (wire
2. If resistance is greater than 5 Ohms,
circuit is open. Replace wiring harness
in question (WP 0195 00 thru WP 0201
6. Check if diagnostic code remains active.
(a) Inspect and clean wiring harness
(b) Reconnect all wiring harness
(c) Operate machine (TM 5-3805-291-