TCU Control Unit

The TCU (Transmission Control Unit) controls the AutoPowr/IVT transmission.

Light

Diagnostic trouble code

Brief description

Description

yellow

TCU

000126.00

Transmission

Transmission oil filter blocked. Change filter.

red

TCU

000127.01

Transmission

Transmission oil pressure too low. Check oil level and filter.

yellow

TCU

000161.00

Transmission

Engine speed too high. Reduce ground speed.

red

TCU

000177.00

Transmission

Transmission oil temperature too high. Check oil level and filter.

yellow

TCU

000191.00

Transmission

Tractor speed too high. Reduce ground speed.

If other diagnostic trouble codes appear, one of the tractor's sub-assemblies is either not working properly or not working at all. Make a note of the code and contact your dealer.

OU12401,0001AC4-19-20081008