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DIAGNOSIS TSB Revision WIRELESS CONTROL MODULE (WCM) 42C-73 DTC U0195: Satellite radio tuner CAN timeout CAUTION • If DTC U0195 is set to the ETACS-ECU, always diagnose the CAN bus line. • Before replacing the ECU, ensure that the communication circuit is normal. . TROUBLE JUDGMENT If the signal from satellite radio tuner cannot be . TROUBLESHOOTING HINTS • The satellite radio tuner may be defective. • The WCM may be defective. • The CAN bus may be defective. 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 CAUTION To prevent damage to scan tool MB991958, always turn the Scan Tool (M.U.T.-III) (2) Turn the ignition switch to the "ON" position. YES : Go to Step 2. ). STEP 2. Using scan tool MB991958, read the satellite radio YES : Troubleshoot the satellite radio. (Refer to GROUP 54A, Diagnosis <Satellite radio tuner>). NO : Go to Step 3. AC608435 Data link connector MB991827 MB991824 MB991910 AB |