Lane Keeping Assist System (LKAS) Symptom Troubleshooting Index

WARNING: This page is about a different variant/trim than selected.

Symptom	Diagnostic procedure	Also check for
LKAS indicator (on the MID) does not come on	Symptom troubleshooting .
LKAS indicator (on the MID) does not go off, and no DTCs are stored	NOTE: If any of the CAN communication failure DTC is indicated in another system, troubleshoot the DTC first. Check for an open or a short in the F-CAN circuit; - Between the gauge control module and the CAN gateway (F-CAN D_H, F-CAN D_L) - Between the millimeter wave radar and the CAN gateway (F-CAN C_H, F-CAN C_L) Check the millimeter wave radar power circuit (IG1_OPTION). Check the millimeter wave radar ground circuit (GND). Do to the gauge control module self-diagnostic function .	Refer to the followings about the indicator operating condition; General troubleshooting information Refer to the followings about the circuit troubleshooting; Gauge control Module connector for inputs and outputs Millimeter wave radar connector for inputs and outputs Lane Keeping Assist System (LKAS) Circuit Diagram Fuse to components index Ground to components index

Symptom

Diagnostic procedure

Also check for

LKAS indicator (on the MID) does not come on

LKAS indicator (on the MID) does not go off, and no DTCs are stored

NOTE: If any of the CAN communication failure DTC is indicated in another system, troubleshoot the DTC first.

Check for an open or a short in the F-CAN circuit;
- -
  Between the gauge control module and the CAN gateway (F-CAN D_H, F-CAN D_L)
- -
  Between the millimeter wave radar and the CAN gateway (F-CAN C_H, F-CAN C_L)
Check the millimeter wave radar power circuit (IG1_OPTION).
Check the millimeter wave radar ground circuit (GND).
Do to the gauge control module self-diagnostic function .

Refer to the followings about the indicator operating condition;

Refer to the followings about the circuit troubleshooting;