TM 9-2320-366-20-1
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.
2-402.4
Change 1
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 2-45) or replace auxiliary panel
cable assembly (para 7-58).
Repair wire 3020 from connector J913
socket 10 to terminal board TB2 position 31
(para 2-45) or replace WTEC II dashboard
cable assembly (para 7-10) or WTEC III
dashboard cable assembly (para 7-11).