Section
4
TROUBLESHOOTING
CHARTS
D. CHART
7-
NO DATA LINK AND BULB CHECK
OKAY (Cent’d.)
STEP/SEQUENCE
RESULT
C7-30
Verify
Repairs
l Turn ignition
off.
l Reconnect
all connectors.
l Turn ignition
on.
l Clear codes.
l Turn ignition
off.
l Turn ignition
on.
l Note status
of "Check Engine”
light.
l If "Check Engine”
light does not
stay on, start engine and run for
1 minute or until ‘Check Engine”
light comes on. Stop engine.
l Read historical codes.
DDR display reads “NO-
DATA BEING RECEIVED
FROM DATA LINK” or
"DDEC SYSTEM NOT
RESPONDING”.
Engine starts,
and DDR reads
Code 25 (no codes).
Engine starts,
and codes other
than Code 25
appear.
TM 9-2320-363-20-1
WHAT TO DO NEXT
All
system diagnostics
are
complete. Please review this
section from the first step to find
the error.
Repairs
are complete.
GO to START-1, page 3-121, to
service codes.
3-181
