[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
17 -ENGINE AND EMISSION CONTROL > ADAPTIVE CRUISE CONTROL SYSTEM (ACC) > DIAGNOSIS CODE PROCEDURES > CODE NO. C2340: FCM CONTROL DISABLED (ASC)
Code No. C2340: FCM control disabled (ASC)
 
 
caution
  • Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
  • When the ACC/FCM-ECU is replaced, calibrate the radar (refer to ).
 
 
OPERATION
ACC/FCM-ECU communicates with the ASC-ECU via the CAN bus lines.
 
 
DIAGNOSIS CODE SET CONDITION
Check Conditions
  • More than 2 seconds have passed since the ignition switch was turned to "ON" position.
  • ACC/FCM-ECU power voltage is more than 9 V and is less than 18 V.
Judgement Criterion
  • The ECU receives an FCM deactivation signal from the ASC-ECU.
 
 
PROBABLE CAUSES
  • Malfunction of the ACC/FCM-ECU
  • Defective ASC circuit system (automatic braking illumination circuit)
 
 
DIAGNOSIS PROCEDURE
STEP 1. Check the M.U.T.-IIISE other system diagnosis code.
Check if diagnosis code No. C1800 or C1801 is set in the ASC-ECU.
Is the diagnosis code set?
Troubleshoot the ASC-ECU (Refer to GROUP 35C - Troubleshooting ).
Go to Step 2.
 
STEP 2. Check the M.U.T.-IIISE diagnosis code.
Use M.U.T.-IIISE to check that any diagnosis code other than code No. C1753 or C2349 is set in ACC/FCM-ECU.
Is the diagnosis code set?
Troubleshoot the relevant diagnosis code (Refer to ).
Go to Step 3.
 
STEP 3. Check whether the diagnosis code is set again.
Check again if the diagnosis code is set in the ACC/FCM-ECU.
(1) Erase the diagnosis code.
(2) Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(3) Check if diagnosis code is set.
Is the diagnosis code set?
Replace the ACC/FCM-ECU (Refer to ).
It can be assumed that this malfunction is intermittent (Refer to GROUP 00 - How to Use Troubleshooting/Inspection Service Points, How to Cope with Intermittent Malfunction ).