2.
Is main code 33 logged in
conjunction with main code
21?
Go to step 4 of this fault.
YES
NO
TEST OPTIONS
Visual Inspection
REASON FOR QUESTION
Main code 21 in conjunction
with main code 33 indicates
loss of common ground.
KNOWN INFO
Fuse OK.
Transmission oil level OK.
Batteries OK.
POSSIBLE PROBLEMS
Faulty WTEC II cab
transmission harness.
Faulty WTEC II TEPSS.
Faulty TPS cable assembly.
TM 9-2320-365-20-2
f12. WTEC II TRANSMISSION ECU PUSHBUTTON SHIFT SELECTOR (TEPSS) DISPLAYS MAIN
CODE 21 AND ANY SUB CODE (CONT)
2-1432 Change 1
