e21. TACHOMETER DOES NOT ILLUMINATE (CONT)
KNOWN INFO
Hazard lights switch
illuminates.
Tachometer OK.
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity Test or
STE/ICE-R Test #91
CAUTION
Read CAUTION
on following page.
Faulty auxiliary panel cable
assembly.
Faulty dashboard cable
assembly.
If continuity is not present,
auxiliary panel cable assembly
is faulty.
4.
Is continuity present from
connector P901 socket 1 to
connector P913 pin 10?
NO
YES
Repair wire 3020 from connector P901
socket 1 to connector P913 pin 10
(para 2-40) or replace auxiliary panel
cable assembly (para 7-49).
Repair wire 3020 from connector J913
socket 10 to terminal board TB2 position 31
(para 2-40) or replace WTEC II dashboard
cable assembly (para 7-10) or WTEC III
dashboard cable assembly (para 7-11).
TM 9-2320-365-20-1
2-392.4 Change 1