DTC U1415: Variant coding not completed: 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
- STEP 1. Using scan tool MB991958, diagnose the CAN bus lines.
Using scan tool MB991958, diagnose the CAN bus lines.
Q: Is the check result normal?
YES : Go to Step 2.
NO : Repair the CAN bus lines. (Refer to TROUBLESHOOTING .) After repairing the CAN bus line, go to Step 5.
- STEP 2. Scan tool diagnostic trouble code for other systems
Use scan tool to check that the diagnostic trouble code B222C is set in the ETACS-ECU.
Q: Is any DTC set?
YES : Perform troubleshooting for the diagnostic trouble code that is set. Then go to Step 4.
NO : Go to Step 3.
- STEP 3. Check for diagnostic trouble codes of other systems
Q: Is DTC U1417 set?
YES : Perform the troubleshooting for diagnostic trouble code No. U1417.(Refer to DTC U1417: VARIANT CODING VALUE INVALID (INCLUDES FAULTY INSTALLATION) .)
NO : Go to Step 4.
- STEP 4. Check whether the DTC is reset.
- Ignition switch "LOCK" (OFF)
- Ignition switch "ON"
- Check that the ABS warning light is extinguished.
Q: Is DTC U1415 set?
YES : Replace the hydraulic unit (incorporates in ASC-ECU).(Refer to HYDRAULIC UNIT .) Then go to Step 5.
NO : Intermittent malfunction. (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTION .)
- STEP 5. Check whether the DTC is reset.
- Ignition switch "LOCK" (OFF)
- Ignition switch "ON"
- Check that the ABS warning light is extinguished.
Q: Is DTC U1415 set?
YES : Return to Step 1.
NO : The procedure is complete.