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Page Title:
ONE OR BOTH HEADLIGHT LOW BEAMS DO NOT ILLUMINATE |
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 TM 9-2320-366-20-1
INITIAL SETUP
Equipment Condition
Tools and Special Tools
Engine shut down (TM 9-2320-366-10-1).
Tool Kit, Genl Mech (Item 46, Appendix C)
STE/ICE-R (Item 41, Appendix C)
Personnel Required
Multimeter, Digital (Item 22, Appendix C)
(2)
References
TM 9-4910-571-12&P
START
KNOWN INFO
TEST OPTIONS
1.
Operational Test
Headlight high beams
illuminate.
Does one headlight low
REASON FOR QUESTION
beam illuminate?
POSSIBLE PROBLEMS
This question eliminates
possible problems and
Faulty headlight lamp.
determines where
Faulty front lights cable
troubleshooting continues.
assembly.
NO
Faulty dashboard cable
assembly.
Faulty relay K8.
Faulty turn signal switch.
YES
Go to step 3 of this fault.
KNOWN INFO
TEST OPTIONS
2.
Continuity Test or
Headlight high beams
STE/ICE-R Test #91
illuminate.
Is continuity present
REASON FOR QUESTION
One headlight low beam
between headlight lamp
operational.
wire 18 and headlight lamp
If continuity is not present,
Dashboard cable assembly OK.
wire 91?
headlight lamp is faulty. If
Relay K8 OK.
continuity is present, wire 18
Turn signal switch OK.
is faulty.
POSSIBLE PROBLEMS
Faulty headlight lamp.
NO
Faulty headlamp wire 18.
YES
Replace headlight lamp (para 7-41).
Repair wire 18 (para 2-45) or replace front
lights cable assembly (para 7-82).
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