DTC U1415 Variant coding not implemented: Diagnosis

WARNING: This page is about a different variant/trim than selected.

STEP 1. Scan tool MB991958 CAN bus diagnostics
Use scan tool MB991958 to diagnose the CAN bus lines.

Q: Is the check result normal?
1. YES: Go to Step 2.
2. NO: Repair the CAN bus line (Refer to CAN BUS DIAGNOSTICS TABLE ). Then go to Step 4.
STEP 2. Scan tool MB991958 DTC of other systems
Use M.U.T.-III to check that DTC B222C is stored in the ETACS-ECU.

Q: Is the DTC stored?
1. YES: Troubleshoot the relevant diagnostic trouble code, and then go to Step 4.
2. NO: Go to Step 3.
STEP 3. Check whether the DTC is stored again.
1. Erase the DTC.
2. Turn the ignition switch from the "LOCK" (OFF) position to the "ON" position.
3. Check if the DTC is stored.
Q: Is DTC U1415 stored?
1. YES: Replace AWD-ECU (Refer to AWD-ECU ). Then go to Step 4.
2. NO: The trouble can be an intermittent malfunction such as loose connector fit, wiring harness open circuit (Refer to HOW TO COPE WITH INTERMITTENT MALFUNCTIONS ).
STEP 4. Check whether the DTC is stored again.
Q: Is DTC U1415 stored?
1. YES: Diagnose again from Step 1.
2. NO: This procedure is complete.