[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > FCM/LDW/AHB-ECU > DIAGNOSIS CODE PROCEDURES > CODE NO. C1747 SHIFT SIGNAL UNDETERMINED
Code No. C1747 Shift signal undetermined
 
 
caution
  • Whenever the ECU is replaced, ensure that the CAN bus lines are normal.
 
 
OPERATION
FCM/LDW/AHB-ECU communicates with the inhibitor switch signal via the CAN bus lines.
 
 
DIAGNOSIS CODE SET CONDITION
This diagnosis code is set when the abnormality below is detected:
  • The ECU receives an invalid inhibitor switch signal from the CVT-ECU.
 
 
PROBABLE CAUSES
  • Defective CVT system (Transmission control system)
  • Malfunction of the FCM/LDW/AHB-ECU
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE other system diagnosis code.
Check the CVT diagnosis code (Refer to GROUP 23A -Troubleshooting ).
Is the diagnosis code set?
Perform the relevant troubleshooting (Refer to GROUP 23A -Troubleshooting ).
Go to Step 2.
 
STEP 2. M.U.T.-IIISE other system data list.
Check the CVT-ECU data list (Refer to GROUP 23A - Data List Reference Table ).
  • Ignition switch: ON
  • Engine: Stopped
  • Operate the selector lever
 
Item No.Item nameSelector lever positionNormal condition
60Inhibitor SW: PPON
Other than POFF
61Inhibitor SW: RRON
Other than ROFF
62Inhibitor SW: NNON
Other than NOFF
63Inhibitor SW: DDON
Other than DOFF
OK: Normal condition is displayed.
Is the check result normal?
Go to Step 3.
Proceed to the diagnosis code procedure "P0705". (Refer to GROUP 23A -Troubleshooting ).
 
STEP 3. Check whether the diagnosis code is set again.
Check again if the diagnosis code is set in the FCM/LDW/AHB-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 FCM/LDW/AHB-ECU (Refer to ).
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).