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TM 9-2320-364-20-2
2-882
7. CODE 23: SHIFT SELECTOR (CONT).
“CHECK TRANS” light ON.
“DO NOT SHIFT” light OFF.
Circuit breakers not tripped.
May also have a code 32.
No false code 14.
No short/open circuit in forward
pressure switch circuit inside
transmission.
Cab/transmission wire
harness OK.
Shift selector OK.
Transmission ECU OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Verify repair.
If CHECK TRANS light does not
stay on, fault has been
corrected.
YES
NO
Fault corrected.
7.
Does CHECK TRANS light
stay ON longer than five
seconds?
Notify DS
Maintenance.
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