TM 42320-387-24-l
DCA TROUBLESHOOTING
DIAGNOSTIC FLOWCHART
KNOWN INFO
STEXE-R OK
CABLES OK
TK OK USING PULSE
TACHOMETER
POSSIBLE PRbBLEMS
VEHICLE SYSTEMS
REMOVE THE TACHOMETER
FROM THE ENGINE AND
INSPECT IT. IS IT OK?
VISUAL INSPECTION
- CHECK
FOR BROKEN WIRES OR
CONNECTORS AND WORN
PARTS. ALSO CHECK THE SLOT
IN THE OIL PUMP DRIVE.
REASON FOR OUESllON
If the tachometer is no good. you
can’t expect good test results.
/_
I
I
TACHOMETER.
VEHICLE TACHOMETER
STE/lCE-R OK
I POSSIBLE PROBLEh!;
VEHICLE SYSTEMS
DCA
t
82
1
TEST OPllONS
/
INSTALL THE TACHOMETER
FROM THE TK KIT. RUN THE
ORIGINAL TEST WITH THE
VEHICLE TEST METER IN THE TK
MODE. IS THE VEHICLE OK?
SEE THE CHART ON THE
FOLDOUT PAGE TO RUN THE
TK VERSION OF THE
TEST YOU WANT.
REASON FOR OUESTlON
You want to know if the vehicle
is OK
IF YOU CAME FROM ANOTHER
L
PARAGRAPH,
RETURN THERE AND FOLLOW
83
1
TEST OPTIONS
DID THE ORIGINAL DCA TEST
NONE
STEIICE-R OK
GIVE A CORRECT RESULT?
POSSIBLE PROBLEMS
I-
2-486
