TM 9-2320-387-24-l
TRANSMISSION
SYSTEM
DIAGNOSTIC
FLOWCHART
TRANSMISSION LIGHT CIRCUIT
657A
Check for >12V on pin 1 (wire
6578) of harness connector at
trans check lamp.
I
NO
Q
n YES
Y
.Check for continuity on wire 657A
from Jl pin U to pin 2 of harness
connector at trans check lamp.
Check pin j of Jl
(wire 291 D) for >12V.
NO
?
Follow diagnostic
procedure for pin j of Jl
to obtain >12V on wire
291 D.
Replace transmission
check lamp
(para. 4-41).
1 Does transmission check lamp light? 1
1 Gotopage2-402.1
2-406