CAUTION
Read CAUTION
on following page.
TEST OPTIONS
Continuity Test or
STE/ICE-R Test #91
REASON FOR QUESTION
KNOWN INFO
e14. TACHOMETER DOES NOT OPERATE OR IS INACCURATE (CONT)
If continuity is not present,
wire 1550 in auxiliary panel
cable assembly is faulty. If
continuity is present, wire
1550 in dashboard cable
assembly is faulty.
YES
NO
9.
Faulty dashboard cable
assembly.
Faulty auxiliary panel cable
assembly.
POSSIBLE PROBLEMS
Tachometer illuminates.
VOLTS gage OK.
Engine speed sensor OK.
Is continuity present from
connector P901 pin 4 to
connector P913 pin 12?
Repair wire 1550 from connector P901
pin 4 to connector P913 pin 12 (para
2-40) or replace auxiliary panel cable
assembly (para 7-49).
Repair wire 1550 from connector J913
socket 12 to connector PX26 socket 1
(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
2-356.4 Change 1