DTC Description

If abnormal Clutch signal is detected, HECU sets DTC C1520.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

Signal Monitoring

1.

Shorted Clutch Switch Circuit

2.

Defected Clutch Switch

Threshold Value

Clutch Switch signal does not change after driving with over 60 km/h(Approx. 37 mph) and stop for 5 times1)

Clutch Switch signal changes 40 times within 5 sec.2)

Fail Safe

CBC/TCS/ESC(ESP)/HAC/VSM inhibited(ESC[ESP] Only)

Warning Indicator Lamp Status

ESC(ESP) Warning Indicator Lamp "ON"

Clear Condition

In case of 1) condition : Ignition "OFF" and then "ON" and clutch switch change is detected for 5 times

In case of 2) condition : Ignition "OFF" and then "ON"

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