e12. SPEEDOMETER DOES NOT OPERATE OR IS INACCURATE
START
1.
TEST OPTIONS
Transmission Diagnostic Code
Check
REASON FOR QUESTION
This question eliminates
possible problems and
determines where
troubleshooting continues.
KNOWN INFO
POSSIBLE PROBLEMS
Is main code 13, 22 or 25
active in pushbutton shift
selector?
YES
Go to step 2 of this fault.
NO
Perform transmission troubleshooting f19 or
f37 for main code 13, transmission troubleshooting
f2, f3, f4, f22, f23, or f24 for main code 22, or
transmission troubleshooting f14 or f32 for
main code 25.
Water temperature gage
operates correctly.
Main code 13, 22, or 25 active
in pushbutton shift selector.
Faulty dashboard cable
assembly.
Faulty WTEC II VIM.
Faulty WTEC II cab
transmission harness.
Faulty Central Tire Inflation
System (CTIS) cable assembly.
Faulty CTIS ECU.
Faulty speedometer.
INITIAL SETUP
Equipment Conditions
Engine shut down (TM 9-2320-365-10).
Tools and Special Tools
Tool Kit, Genl Mech (Item 44, Appendix C)
STE/ICE-R (Item 39, Appendix C)
Multimeter, Digital (Item 22, Appendix C)
Wrench, Torque, 0-75 lb-in. (Item 86, Appendix B)
Materials/Parts
Nut, Self-Locking (2) (Item 125, Appendix G)
Personnel Required
(2)
References
TM 9-4910-571-12&P
TM 9-2320-365-20-1
2-332 Change 1
