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TM 9-2320-360-20-1
NOTE
The following flow chart should be
used If DDEC troubleshooting was
started on p. 2-80 and you were
referred here.
(1)
Unplug DDR.
(2)
Short pin A to Pin M on 12- pin DDL
connector.
Check circuit breakers to ECM and reset If needed.
CONTINUITY TEST
(1)
Check resistance between cavity A of
DDL connector and a known good
ground.
(2)
Disconnect vehicle harness connector at
ECM. Check resistance between pin M
of DDL and cavity El of ECM 30-pin
connector.
(3)
Check resistance between pin J of DDL
connector and cavity C2 of ECM 30-pin
connector.
(4)
Check resistance between pin K of DDL
connector and cavity C1 of ECM 30-pin
connector.
2-99
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