FRONT BRAKE AIR INDICATOR DOES NOT ILLUMINATE WHEN AIR PRESSURE IS BELOW 65 PSI (cont)

TM 9-2320-366-20-1

e37. FRONT BRAKE AIR INDICATOR DOES NOT ILLUMINATE WHEN AIR PRESSURE IS BELOW

65 PSI (CONT)

WARNING

CAUTION

Read WARNING and

CAUTION on

KNOWN INFO

TEST OPTIONS

following page.

Voltage Test or

Other indicator lights

STE/ICE-R Test #89

illuminate.

Is 24 VDC present at

REASON FOR QUESTION

FRONT BRAKE AIR pressure

connector PX7 pin 27?

gage operates.

If 24VDC is not present, wire

Front brake air indicator lamps

1658 is faulty. If continuity is

OK.

present, front air pressure

Lighted indicator display OK.

POSSIBLE PROBLEMS

Faulty front air pressure

transmitter.

Faulty dashboard cable

assembly.

Repair wire 1658 from connector PX7 pin 27

to terminal board TB1 position 61 (para 2-45) or

YES

replace WTEC II dashboard cable assembly

(para 7-10) or WTEC III dashboard cable

assembly (para 7-11).

Replace front air pressure

transmitter (para 7-44).

Change 1