[ 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. C2338: ENGINE RPM SIGNAL (INVALID)
Code No. C2338: Engine Speed Signal (Invalid)
 
 
cautionWhen the ACC/FCM-ECU is replaced, calibrate the radar (refer to ).
 
 
OPERATION
The ACC/FCM-ECU receives engine speed signal from the engine-ECU.
 
 
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
  • An invalid engine speed signal received from the engine-ECU.
noteA diagnosis code is not set as a historic fault.
 
 
PROBABLE CAUSES
  • Engine system fault (crank angle sensor fault)
  • Malfunction of the ACC/FCM-ECU
 
 
DIAGNOSIS PROCEDURE
STEP 1. Check the DI and MPI system diagnosis code.
Using M.U.T.-IIISE, perform DI and MPI system diagnosis code (Refer to GROUP 13A - Troubleshooting, Diagnosis Function ).
Is any diagnosis code set?
Repair the DI and MPI system (Refer to GROUP 13A - Troubleshooting, Inspection Chart for Diagnosis Code ).
Go to Step 2.
 
STEP 2. Check whether the diagnosis code is set again.
Is diagnosis code No. C2338 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 ).