KNOWN INFO
TEST OPTIONS
Visual Inspection
REASON FOR QUESTION
2.
NO
YES
Go to step 5 of this fault.
KNOWN INFO
TEST OPTIONS
REASON FOR QUESTION
Continuity Test or
STE/ICE-R Test #91
NO
Go to step 4 of this fault.
YES
CAUTION
Read CAUTION
on following page.
3.
Repair wire 1616 from connector PX7
pin 22 to splice E2 (para 2-40) or replace
WTEC II dashboard cable assembly
(para 7-10) or WTEC III dashboard
cable assembly (para 7-11).
e31. PARKING BRAKE INDICATOR AND/OR EMERGENCY BRAKE INDICATOR DOES NOT
ILLUMINATE (CONT)
This question eliminates
possible problems and
determines where
troubleshooting continues.
Parking brake operates.
Circuit breaker CB77 OK.
Front lights cable assembly
OK.
Low pressure transmitter OK.
POSSIBLE PROBLEMS
Faulty emergency brake
indicator lamps.
Faulty dashboard cable
assembly.
Faulty parking brake indicator
lamps.
Faulty lighted indicator display.
Does emergency brake
indicator illuminate?
If continuity is present, wire
1616 is faulty.
Is continuity present from
lighted indicator display
socket 27 to socket 22?
Parking brake operates.
Circuit breaker CB77 OK.
Front lights cable assembly
OK.
Low pressure transmitter OK.
Emergency brake indicator
lamps OK.
POSSIBLE PROBLEMS
Faulty dashboard cable
assembly.
Faulty parking brake indicator
lamps.
Faulty lighted indicator display.
2-446 Change 1
TM 9-2320-365-20-1