WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DOES NOT ILLUMINATE (cont)

TM 9-2320-366-20-2

f40. WTEC III TRANSMISSION PUSHBUTTON SHIFT SELECTOR (TPSS) DOES NOT

ILLUMINATE (CONT)

KNOWN INFO

TEST OPTIONS

Continuity Test or

12 VDC and 24 VDC circuits

STE/ICE-R Test #91

operate.

Is continuity present from

REASON FOR QUESTION

Circuit breaker CB43 OK.

terminal board TB1

Circuit breaker CB79 OK.

position 60 to terminal

If continuity is not present,

WTEC III ECU OK.

board TB1 position 62?

terminal board TB1 is faulty.

WTEC III TPSS OK.

If continuity is present, WTEC

POSSIBLE PROBLEMS

III dashboard cable assembly

is faulty.

Faulty WTEC III dashboard

cable assembly.

Faulty terminal board TB1.

Replace terminal board

YES

TB1 (7-11).

Repair wire 1690 from terminal board

TB1 position 62 to circuit breaker CB79

(para 2-45) or replace WTEC III dashboard

cable assembly (para 7-11).

2-1822.26

Change 1