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AUTO A/C DIAGNOSIS TSB Revision HEATER, AIR CONDITIONING AND VENTILATION 55-63 DTC U0195: Satellite radio tuner CAN timeout CAUTION If DTC U0195 is set in the A/C-ECU, diagnose the CAUTION Whenever the ECU is replaced, ensure that the . TROUBLE JUDGMENT The A/C-ECU receives air conditioning opera- . TECHNICAL DESCRIPTION (COMMENT) Current trouble • Connector(s) or wiring harness in the CAN bus lines between the Satellite Radio and the Past trouble • If DTC U0195 is stored as a past trouble, carry out diagnosis with particular emphasis on wiring − How to Cope with Intermit- tent Malfunctions ) and check the CAN bus lines. You can narrow down the possible . TROUBLESHOOTING HINTS • Malfunction of the Satellite Radio • Malfunction of the A/C-ECU • Damaged harness wires and connectors DIAGNOSIS Required Special Tools: • MB991223: Harness Set • MB992006: Extra Fine Probe • MB991958: Scan Tool (M.U.T.-III Sub Assembly) • MB991824: V.C.I. • MB991827: M.U.T.-III USB Cable • MB991910: M.U.T.-III Main Harness A |