Component Location
General Description

TCM decide that error is detected, when checksum is worng by TCM internal operation.

TCM watch that TCM checks error of each data by each data checksum for TCM internal operation value.

DTC Description

This code is set when TCM detected checksum error by internal operation.

( Checksum error is detected when TCM's ROM or DATA is changed by reprogram illegally.)

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

•

ROM checksum error

•

ROM data reprogram illegally

•

TCM

Enable Conditions

•

Ignition "ON"

•

Battery voltage > 10V

Threshold value

•

Checksum error or TCM fault

Detecting Time

•

1event

Fail safe

•

Locked into 4th gear

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