DTC B1703: Transponder Data Inconsistent: 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

1. 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 (Refer to ENCRYPTED CODE REGISTRATION CRITERIA TABLE ). Then go to Step  2.

   NO:  Register the encrypted code again (Refer to ENCRYPTED CODE REGISTRATION CRITERIA TABLE ). Then go to Step  2.

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 (Refer to ENCRYPTED CODE REGISTRATION CRITERIA TABLE ). Retest the system.

   NO:  The procedure is complete.

   Fig 1: Connecting Scan Tool To Data Link Connector

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.