TM 9-2320-387-24-l
GLOW PLUGS CIRCUIT
KNOWN INFO
OPEN CIRCUIT IN GLOW
PLUG CONTROLLER
OR
WIRING
POSSIBLE
PROBLEMS
WIRING
GLOW PLUG
CONTROLLER
KNOWN INFO
3PEN CIRCUlT IN GLOW
PLUG CONTROLLER
OR WIRING
POSSIBLE
PROBLEMS
WIRING
GLOW PLUG
CONTROLLER
IS THERE CONTINUITY BETWEEN
PCB ENGINE CONNECTOR
HARNESS SOCKET B AND GLOW
PLUG CONTROLLER HARNESS
CONNECTOR SOCKET 3?
b
Page 2-298; 17, Page 2-224;
DIAGNOSTIC FLOWCHART
TEST OPTlONS
1. St-E/ICE-R TEST 91
(Page 2-508)
REASON FOR QUESTION
This checks the return wire from
the glow plug controller to the
Protective Control Box.
02 t
1 TEST OPTIONS
IS THERE CONTINUITY
BETWEEN
PCB ENGINE CONNECTOR HARNESS
SOCKET A AND GLOW PLUG
CONTROLLER
HARNESS
CONNECTOR SOCKET 6?
,y
REASON FOR QUESTION
This checks the main power
wire from the PCB to the glow
plug controller.
1
r;
REPLACE GLOW PLUG
CONTROLLER.
DOES THE ENGINE
START EASILY WHEN COLD?
1.
91
(Page
2. MULTIMETER
T OPTlONS
TRY rr.
REASON FOR QUESTIONS
You verified that the wiring is OK
be bad.
