[ Model - ECLIPSE CROSS / Year - 2018 ]
2018 / ECLIPSE CROSS / EC - Workshop Manual
54 -CHASSIS ELECTRICAL > 54A-CHASSIS ELECTRICAL > IMMOBILIZER SYSTEM<Vehicles without keyless operation system><Vehicles without keyless operation system> > DIAGNOSIS CODE PROCEDURES > B1A35 Transponder read error
Code No.B1A35 Transponder read error
 
 
caution
  • When diagnosis code No. B1A35 is set, be sure to diagnose the CAN bus line.
  • When replacing the ECU, always check that the communication circuit is normal.
 
 
DIAGNOSIS FUNCTION
ETACS-ECU sets diagnosis code No. B1A35 when it cannot receive data from the transponder.
 
 
JUDGEMENT CRITERIA
ETACS-ECU determines that the abnormality is present, if it cannot receive the key ID for the ignition key when the ignition switch is turned ON.
 
 
PROBABLE CAUSES
  • Malfunction of CAN bus line
  • Malfunction of another transponder
  • Malfunction of receiver antenna
  • Malfunction of ETACS-ECU
  • Interference of another transponder
 
 
DIAGNOSIS PROCEDURE
STEP 1. M.U.T.-IIISE CAN bus diagnostics
Use M.U.T.-IIISE to diagnose the CAN bus lines.
Is the check result normal?
Go to Step 2.
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ).
 
STEP 2. Check the ignition key inserted in the key cylinder for interference.
Are there other ignition keys or anything that interferes with the communication (things that generate radio waves such as magnets or air-cleaning device that has a power plug) near the ignition key inserted in the key cylinder?
Move away or remove other ignition keys or anything that interferes with the communication, and go to Step 3.
Go to Step 3.
 
STEP 3. Check whether the diagnosis code is set again.
Recheck if the diagnosis code is set.
(1) Register the ignition key which is used when detect the diagnosis code.
(2) Remove the ignition key from the cylinder and then insert the ignition key again.
(3) After 2 or 3 seconds later from inserting the key, then turn the ignition "ON".
(4) Check if the diagnosis code is set.
Is the diagnosis code set?
Go to Step 4.
The diagnosis is complete.
 
STEP 4. Replace the ignition key with another registered key for the vehicle, and recheck the diagnosis code.
Replace the ignition key by which the diagnosis code is set with another ignition key nearby, and recheck if the diagnosis code is set.
(1) Remove the ignition key from key cylinder and insert it again then turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
(2) Check if the diagnosis code is set.
Is the diagnosis code set?
Go to Step 5.
Go to Step 6.
 
STEP 5. Register the key ID and recheck the diagnosis code.
Register the key ID of the ignition key by which the diagnosis code is set in Step 4 (refer to ), and recheck if the diagnosis code is set.
(1) Remove the ignition key from key cylinder and insert it again then turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
(2) Check if the diagnosis code is set.
Is the diagnosis code set?
Go to Step 6.
The diagnosis is complete.
 
STEP 6. Replace the ignition key with a new one, and recheck the diagnosis code.
Replace the ignition key by which the diagnosis code is set with a new one, register the key ID of the new key, (refer to ), and recheck if the diagnosis code is set.
(1) Remove the ignition key from key cylinder and insert it again then turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
(2) Check if the diagnosis code is set.
Is the diagnosis code set?
Go to Step 7.
The diagnosis is complete.
 
STEP 7. Replace the receiver antenna, and recheck the diagnosis code.
Replace the receiver antenna, register the key ID of the key (refer to ), and recheck if the diagnosis code is set.
(1) Remove the ignition key from key cylinder and insert it again then turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
(2) Check if the diagnosis code is set.
Is the diagnosis code set?
Replace ETACS-ECU (Refer to ) and register the ID codes (Refer to ).
The diagnosis is complete.