SPEEDOMETER DOES NOT OPERATE OR IS INACCURATE

TM 9-2320-366-20-1

e12. SPEEDOMETER DOES NOT OPERATE OR IS INACCURATE

INITIAL SETUP

Equipment Conditions

Materials/Parts

Engine shut down (TM 9-2320-366-10-1).

Nut, Self-Locking (2) (Item 133, Appendix G)

Tools and Special Tools

Personnel Required

Tool Kit, Genl Mech (Item 46, Appendix C)

(2)

STE/ICE-R (Item 41, Appendix C)

Multimeter, Digital (Item 22, Appendix C)

References

Wrench, Torque, 0-75 lb-in. (Item 90, Appendix B)

TM 9-4910-571-12&P

START

KNOWN INFO

TEST OPTIONS

Water temperature gage

Transmission Diagnostic Code

operates correctly.

Check

Is main code 13, 22 or 25

POSSIBLE PROBLEMS

REASON FOR QUESTION

active in pushbutton shift

This question eliminates

selector?

Main code 13, 22, or 25 active

possible problems and

in pushbutton shift selector.

determines where

Faulty dashboard cable

troubleshooting continues.

assembly.

Faulty WTEC II VIM.

Faulty WTEC II cab

transmission harness.

Faulty Central Tire Inflation

System (CTIS) cable assembly.

Faulty CTIS ECU.

Faulty speedometer.

YES

Go to step 2 of this fault.

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.

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Change 1