REFERENCE INFORMATION
TRANSMISSION
SYSTEM
TM 9-2320-387-24-l
Will Not Display DTC Code 12, or Check Transmission ON Steady
(NOTE: TRANSMISSION
CHECK IAMP
IS THE LAMP NEXT TO THE SHln
LEVER MARKED 7RANS-ONLY’.)
REMOVE DIAGNOSTIC
SWITCH CABLE. INSTALL JUMPER
CABLE BETWEEN PINS AAND E of J2 ON TCM ASSY.
CHECK DlAGNOSTlC
CABLE
FOR OPEN AND REPAIR.
READ CCOES AND REMOVE
JUMPER.
l
IGNlTlON OFF.
l
DISCONNECT TCM CONNECTOR.
.
IGNlTlON ON.
l
IGNITION OFF.
l
DIAGNOSTIC TERMINAL
NOT GROUNDED.
l
RECONNECT TCM
CONNECTOR.
.
IGNlTlON ON AND
ENGINE OFF.
.
CONNECT PROBE PIN E
ON J2 TO GROUND.
DIAGNOSTIC
SWITCH
CABLE
\
Ji
52
CONNECTOR
CONNECTOR
I
REPLACE DEFECTIVE TCM
(PARA 4-45).
DTC 12 FLASHES
I
OPEN CKT PIN A J2.
REPLACE TCM
(PARA 4-45).
NOTE: AFTER TROUBLESHOOTING.
RECONNECT GLOW PLUG CONTROLLER.
VEHICLE WILL HAVE TO BE OPERATED
IN ORDER FOR TCM TO
RECEIVE TROUBLE CODES. AFTER REPAIRS, CHECK TRANS LAMP OPERATION.
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