DTC U1415: Variant coding not implemented: 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. Using scan tool MB991958, diagnose the CAN bus line. 

   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 4.
2. STEP 2. Using scan tool MB991958, check the other system DTC 

   Use scan tool to check that the DTC B222C is set in the ETACS-ECU.

   Q: Is any DTC set? 

   1. YES:  Troubleshoot the relevant DTC, and then go to  Step 4.
   2. NO:  Go to Step 3.
3. STEP 3. Check whether the DTC is reset. 
   1. Erase the DTC.
   2. Turn the ignition switch to the "LOCK" (OFF) position.
   3. Turn the ignition switch to the "ON" position.

   Q: Is DTC U1415 set? 

   1. YES:  Replace the hydraulic unit (integrated with ABS-ECU) (Refer to HYDRAULIC UNIT  ). Then go to Step 4.
   2. NO:  If the trouble symptom is resolved, an intermittent malfunction such as poorly engaged connector(s) or wiring harness is suspected (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION ).
4. STEP 4. Check whether the DTC is reset. 
   1. Erase the DTC.
   2. Turn the ignition switch to the "LOCK" (OFF) position.
   3. Turn the ignition switch to the "ON" position.

   Q: Is DTC U1415 set? 

   1. YES:  Return to  Step 1.
   2. NO:  The procedure is complete.