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Mechanical Troubleshooting

Brand: Caterpillar - Model: EP16KT

Number of messages: 2

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petect
Connecticut, United States

hello can any one tell me what code 21 is?
first i had code 10/20 i replaced 1 transisitor for the left drive motor
now i have only code 21.
right drive motor spins with steer wheel straight.
left motor doesnt spin

Posted 18 Aug 2009 04:56 AM

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Jplayer
North Carolina, United States

Problem: Left Motor, Transistor Wire Breakage (21)
Indication: "21" display. Vehicle operation (traction and pump motors) disabled.

(2) Possible causes:
Wire break in T1L, faulty drive board, faulty CS2 current sensor, faulty logic card, faulty wiring.

You will need a service manual for the instructions on how to test the circuits related to this code.

You may want to double check your wiring and power cable connections since you replaced the transistor for the left motor.
Of course since august and theres been no replies to this i can assume you have already figured this out :)

-------------------------
John Player Jr

Modified 27 Sep 2009 05:10 AM
by poster.

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