STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
C 13-1 Determine "Cruise
Active" Light Status
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
D. CHART -13 - "CRUISE ACTIVE" LIGHT ALWAYS ON IF SUPPLIED ON VEHICLE
NOTE - This chart is only to be used if:
1) All basic mechanical checks and physical inspections have been performed with no problem found, and
2) Diagnosis of DDEC-III was started at step Start-1, pg 3-345.41 and you have now been referred here.
This is a digital output function.
Turn ignition off.
"Cruise Active"
Go to C13-2.
Turn ignition on while at the same
light comes on
time observing the "Cruise Active"
and stays on.
light.
"Cruise Active"
Light is operational. If cruise
light comes on for
control is inoperative, go to
up to 5 seconds
C12-3.
then goes out.
"Cruise Active"
Go to 14-2.
light does not
come on at all.
C 13-2 Check Calibration
configuration
Plug in DDR.
Turn Ignition on.
Determine which port CAL is
Not programmed
Reconfigure ECM for proper
programmed to.
for CAL.
definition.
Port programmed
Go to C13-3.
for CAL.
C 13-3 Check ECM
Connectors
Turn ignition off.
"Cruise Active"
"Cruise Active light driver line
Disconnect vehicle harness
light comes on
(ckt #XXX) is shorted to ground
connector at the ECM.
and stays on.
Check wiring of bulb socket.
Turn ignition on (engine not
Repair short. Then go to C13-30.
while at the same time observing
the "Cruise Active" light.
"Cruise Active"
Go to C13-4.
light stays off.
Change 3 3-345.141
