TM 9-2320-280-20-1
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR TESTS
NO
YES
NO
YES
GLOWPLUGS CIRCUIT
2-318.14 Change 1
DIAGNOSTIC FLOWCHART
GLOWPLUG CURRENT OK
DISTRIBUTION BOX OK
GLOWPLUGS NOT
CYCLING
WIRING
GLOWPLUG
CONTROLLER
DISCONNECT BATTERY NEGATIVE
CABLE. DISCONNECT DISTRIBUTION
BOX ENGINE CONNECTOR. IS THERE
CONTINUITY FROM ENGINE
CONNECTOR HARNESS SOCKET 'C'
TO GLOWPLUG CONTROLLER
HARNESS SOCKET 4?
1. STE/ICE-R TEST 91
(Page 2-752)
2. MULTIMETER
Wire 570A controls
glowplug cycling.
E1
REPAIR WIRE 570A OR
REPLACE HARNESS
E2
GLOWPLUG CURRENT OK
DISTRIBUTION BOX OK
GLOWPLUGS NOT
CYCLING
WIRING
GLOWPLUG
CONTROLLER
1. STE/ICE-R TEST 91
(Page 2-752)
2. MULTIMETER
The controller can't work
properly without a proper
ground.
RECONNECT DISTRIBUTION BOX
ENGINE CONNECTOR. IS THERE
CONTINUITY FROM GLOWPLUG
CONTROLLER HARNESS SOCKET 5
TO ENGINE GROUND?
REPAIR WIRE 93A OR
REPLACE HARNESS
REPLACE
CONTROLLER
E
From B1,
Page 2-318.8
