B1703

DTC B1703: Transponder Data Inconsistent

DTC SET CONDITION
The encrypted code sent by the transponder is not the same encrypted code which is registered in the ETACS-ECU.

NOTE: DTC B1703 is always set together with MFI system DTC P0513.

TROUBLESHOOTING HINTS
- The encrypted code in the ignition key has not been properly registered
- Malfunction of ETACS-ECU

DIAGNOSIS

Required Special Tools:
- MB991958: Scan Tool (M.U.T.-III Sub Assembly)
- MB991824: V.C.I.
- MB991827: M.U.T.-III USB Cable
- MB991910: M.U.T.-III Main Harness A

STEP 1. Check by the other encrypted code registered ignition key.

Turn the ignition switch "ON" position with the encrypted code registered ignition key other than the one DTC is set.

Q: Is the diagnostic trouble code set?

YES: Register the new additional ignition key. Then go to Step 2.

NO: Register the encrypted code again. Then go to Step 2.

STEP 2. Recheck for diagnostic trouble code.




Recheck if the diagnostic trouble code is set.
1. Turn the ignition switch to "ON" position.
2. Erase the diagnostic trouble code.
3. Turn the ignition switch to the "LOCK" (OFF) position.
4. Turn the ignition switch to "ON" position.
5. Check if the diagnostic trouble code is set.
6. Turn the ignition switch to the "LOCK" (OFF) position.

Q: Is the diagnostic trouble code set?

YES: Replace the ETACS-ECU, and then record the VIN. Then, register the encrypted code again. Retest the system.

NO: The procedure is complete.