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Page Title:
PARKING BRAKE INDICATOR AND/OR EMERGENCY BRAKE INDICATOR DOES NOT ILLUMINATE (cont) |
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 TM 9-2320-366-20-1
e31. PARKING BRAKE INDICATOR AND/OR EMERGENCY BRAKE INDICATOR DOES
NOT ILLUMINATE (CONT)
KNOWN INFO
TEST OPTIONS
2.
Visual Inspection
Parking brake operates.
REASON FOR QUESTION
Circuit breaker CB77 OK.
Does emergency brake
Front lights cable assembly OK.
This question eliminates
indicator illuminate?
Low pressure transmitter OK.
possible problems and
determines where
POSSIBLE PROBLEMS
troubleshooting continues.
Faulty emergency brake
indicator lamps.
Faulty dashboard cable
assembly.
Faulty parking brake indicator
NO
lamps.
Faulty lighted indicator display.
YES
Go to step 5 of this fault.
CAUTION
Read CAUTION
KNOWN INFO
TEST OPTIONS
on following page.
3.
Continuity Test or
Parking brake operates.
STE/ICE-R Test #91
Circuit breaker CB77 OK.
Is continuity present from
REASON FOR QUESTION
Front lights cable assembly OK.
lighted indicator display
Low pressure transmitter OK.
If continuity is present, wire
socket 27 to socket 22?
Emergency brake indicator
1616 is faulty.
lamps OK.
POSSIBLE PROBLEMS
Faulty dashboard cable
NO
assembly.
Faulty parking brake indicator
lamps.
Faulty lighted indicator display.
YES
Go to step 4 of this fault.
Repair wire 1616 from connector PX7
pin 22 to splice E2 (para 2-45) or replace
WTEC II dashboard cable assembly
(para 7-10) or WTEC III dashboard
cable assembly (para 7-11).
2-456
Change 1
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