TM 9-2320-280-20-1
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
NO
YES
NO
YES
2-318.2 Change 1
START
1
NOTHING
DISTRIBUTION BOX
CABLES
GLOWPLUGS
BATTERY TESTS
(Page 2-251)
2
BATTERIES OK
CHECK ALL THE GLOWPLUG
CIRCUIT CONNECTIONS (GLOW-
PLUGS, GLOWPLUG HARNESS
CONNECTIONS). ARE ALL THE
CONNECTIONS CLEAN AND
TIGHT?
DISTRIBUTION BOX
CABLES
GLOWPLUGS
REPAIR
AS
NECESSARY
VISUAL INSPECTION
Loose or dirty connections
can hinder current flow or
cause mixups in the control
signals.
BATTERIES OK
CABLES/CONNECTIONS
SEEM OK
DISTRIBUTION BOX
CABLES
GLOWPLUGS
3
MEASURE THE RESISTANCE
FROM PINS A THROUGH H OF
GLOWPLUG HARNESS AND
GROUND. IS THE READING 2 TO 3
OHMS?
1. STE/ICE-R TEST 80
(Page 2-749)
2. MULTIMETER
GO TO A,
Page 2-318.6
GO TO 4,
Page 2-318.4
If the resistance is OK, then the
glowplugs and harness are OK.
The glowplugs and their control
circuits require battery power
to work.
GLOWPLUGS
TO RUN THE GLOWPLUG CIRCUIT
TESTS, THE BATTERIES MUST BE
IN A GOOD STATE OF CHARGE.
IF YOU AREN'T SURE, RUN THE
BATTERY CIRCUIT TESTS. IF
YOU ARE HERE BECAUSE THE
“WAIT-TO-START” LAMP DOESN'T
WORK PROPERLY, SEE THE NOTE
ON THE RIGHT-HAND PAGE.
DIAGNOSTIC FLOWCHART
