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DIAGNOSIS TSB Revision WIRELESS CONTROL MODULE (WCM) 42C-55 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 YES : Go to Step 3. − CAN Bus Diagnostics table ). On completion, go to Step 2. STEP 2. Diagnostic trouble code recheck after resetting C1934 or C1944 set? STEP 3. Check for TPMS transmitter. NOTE: The TPMS transmitter which cannot be checked may YES : Among the checked TPMS transmitters, replace the TPMS transmitters to which the DTC is set. Then ). Then go to Step 4. NO : Even when no transmitter is checked, register the ID codes (Refer to ). Then go to Step 4. STEP 4. Diagnostic trouble code recheck after register the C1934 or C1944 set? ). Then start over at Step 1. NO : The procedure is complete. |