Component Location
General Description

LKAS is an abbreviation of Lane Keeping Assist System. During vehicle operation at 60 km/h, if the vehicle gets out of the existing lane, LKAS helps the driver to maintain the vehicle within the lane through steering wheel control and alarm. LKAS exchanges CAN data with each unit to control the MDPS motor.

DTC Description

The EPS(MDPS=Motor Driving Power Steering) ECU sets DTC C1804 if it doesn't receive LKAS signals from PCM.

DTC Detecting Condition

Item

Detecting Condition

Possible cause

DTC Strategy

•

LKAS CAN message monitoring

1.

Poor connection

2.

Connector isconnected

3.

Open or short in the circuit

4.

LKAS module

Enable Conditions

•

IG ON or Engine ON

Diagnostic Time

•

500m

Threshold value

•

It can't get LKAS message.

Diagnostic Circuit Diagram
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