DTC C1608: EEPROM Error: Diagnosis

Required Special Tools: 

• MB991958 Scan Tool (M.U.T.-III Sub Assembly)
  • MB991824: Vehicle Communication Interface (V.C.I.)
  • MB991827 M.U.T.-III USB Cable
  • MB991910 M.U.T.-III Main Harness A

1. STEP 1. M.U.T.-III CAN bus diagnostics 

   Use scan tool to diagnose the CAN bus lines.

   Q: Is the check result normal? 

   1. YES:  Go to Step 2.
   2. NO:  Repair the CAN bus lines (Refer to CAN BUS DIAGNOSTICS TABLE . On completion, go to Step 2.
2. STEP 2. Diagnostic trouble code check 
   1. Turn the power supply mode of the engine switch to OFF.
   2. Turn the ignition switch to the "ON" position.
   3. Check if the DTC is set.
   4. Turn the power supply mode of the engine switch to OFF.

      Q: Is the DTC C1608 set? 

      1. YES:  Replace the KOS-ECU and register the ID codes (Refer to ID CODES REGISTRATION PROCEDURES  . Then go to Step 3.
      2. NO:  The procedure is complete.
3. STEP 3. Diagnostic trouble code check 
   1. Turn the power supply mode of the engine switch to OFF.
   2. Turn the power supply mode of the engine switch to ON.
   3. Check if the DTC is set.
   4. Turn the power supply mode of the engine switch to OFF.

      Q: Is the DTC C1608 set? 

      1. YES:  Start over at Step  1.
      2. NO:  The procedure is complete.