DTC Description

If Gear Selector Display signal is fault for more than 500 msec, EPB ECU sets DTC C1646.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

CAN Message Monitoring

1.

Defected CAN Communication Circuit

2.

Defected TCM

Threshold Value

Gear Selector Display signal is fault for over 50 times(more than 500 msec) within normal voltage condition

The fault is not checked for 2 sec after ignition "ON"

Fail Safe

DAR/Dynamic Braking(ESP) inhibted

Warning Indicator Lamp Status

Warning Indicator Lamp "ON"

Clear Condition

Ignition "OFF" and then "ON"

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