caution | When the ACC/FCM-ECU is replaced, calibrate
the radar (refer to ![]() |
note | The radar may not function normally if foreign object or dirt (snow or ice) is adhered
on the radar or its surrounding area, or the road condition is bad due to a severe weather (heavy
rain or snow). In that case, the system will deactivate the ACC and/or FCM as system protection
and display an alert message ("ACC/FCM RADAR BLOCKED") on the combination meter. |
note | A diagnosis code is not set as a historic fault. |
DIAGNOSIS PROCEDURE |
STEP 1. Check the ACC/FCM-ECU radar for contamination. |
Check the ACC/FCM-ECU radar for contamination. |
Q.
Is the ACC/FCM-ECU radar contaminated?
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STEP 2. Check whether the diagnosis code is set again. |
Drive the vehicle at 15 km/h or more for approximately 30 minutes. Check whether
the ACC/FCM-ECU sets any diagnosis code. |
Q.
Is diagnosis code No. C1773 set?
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STEP 3. ACC/FCM-ECU radar calibration. |
Perform calibration of ACC/FCM-ECU radar calibration (Refer to ![]() |
Q.
Has the calibration succeeded?
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