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TM 9-2320-364-20-2
2-874
7. CODE 23: SHIFT SELECTOR (CONT).
3.
Repair wire(s) (see
schematic Fig 2-20) or
notify DS
Maintenance.
Verify repair, go to
Step 7 of this Fault.
YES
NO
“CHECK TRANS” light ON.
Restricted gear shifts.
Torque converter lockup clutch
unlocked.
Transmission does not shift
properly or stays in N
(Neutral).
Wire 210A OK.
Wires 230 and 234 OK.
Short/open ATEC ECU wire
harness.
Short/open in control box wire
harness.
Shift selector faulty.
Transmission ECU faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If continuity is not present on
any one of the wires on
connector MC12, ATEC ECU
will register a code 23.
WARNING
Is continuity measured on all
wires between shift selector
connector MC12 and MC9?
Read WARNING
on Page 2-875
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