STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
C 12-4 Checking Out of
Cruise Control Switch
and Wiring
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
D. CHART 12 - CRUISE CONTROL INOPERATIVE (Cont'd)
To speed up the checkout cruise control switches, quick check tables have been developed. These tests are
all to be run with the ignition on, and the engine not running. Also, a DDR must be plugged into the DDL
connector. All three quick check tables must be gone through to completely check out the cruise control
wiring.
Example
Taking Table I, Step 2 you would do the following:
1. Ignition on, engine not running, DDR plugged in.
2. Turn the cruise enable switch to "on".
3. Select switch/light status on DDR.
4. Note the DDR display, "on" go to Table II step 1.
Cruise Control Quick Check Tables
TABLE I
Check out of Cruise enable switch and wiring (Ignition "on" not running)
Switch Status
DDR Readout
Cruise
Set/
Res/
DDR
Step
Enable
Coast
Accel
Being
Display
Okay?
Go to
SW
SW
SW
LOOKED At
Off
Yes
Table 1 Step 2
1
Off
Off
Off
Cruise Enable
On
No
C12-5
N/A
No
C12-3
Off
No
C12-6
2
On
Off
Off
Cruise Enable
On
Yes
Table 2
N/A
No
C12-3
Change 3 3-345.129