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RADIO AND CD PLAYER TSB Revision CHASSIS ELECTRICAL 54A-321 STEP 6. Check the wiring harness between ETACS-ECU • Check the power supply lines (battery power supply) for open circuit and short circuit. Q: Is the wiring harness between ETACS-ECU connector C-317 (terminal 1) and radio and CD player connector connector(s) may have loose, corroded or damaged STEP 7. Check the power supply circuit to the ETACS-ECU. harness-side connector. (2) Measure the voltage between terminal 2 and ground. OK: Battery voltage Q: Is the measured voltage battery voltage? YES : Go to Step 9. STEP 8. Check the wiring harness between ETACS-ECU • Check the power supply line for open circuit and short cir- cuit. Q: Is the wiring harness between ETACS-ECU connector C-307 (terminal 2) and fusible link (36) in good connector(s) may have loose, corroded or damaged STEP 9. Retest the system YES : The trouble can be an intermittent malfunction (Refer to GROUP 00, How to use − How to Cope with Intermittent Malfunction NO : Replace the radio and CD player. AC709325 AD Harness side: C-307 |