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RADIO AND CD PLAYER CHASSIS ELECTRICAL 54A-229 SYMPTOM PROCEDURES Inspection Procedure 1: Power of the radio and tape player does not turn ON when the ignition switch CAUTION Before replacing the radio and CD player, ensure OPERATION When the ignition switch is in the ON or ACC posi- COMMENTS ON TROUBLE SYMPTOM Provided that the audio diagnosis code is not set, if PROBABLE CAUSES • Malfunction of radio and CD player • Malfunction of the ETACS-ECU • Option coding information inconsistency • Damaged harness wires and connectors DIAGNOSIS PROCEDURE STEP 1. ETACS-ECU coding data check option coding information (Refer to GROUP 00 − Coding Table ). (2) Check that the "AUDIO" is set to "Present." Q: Is the check result normal? YES : Go to Step 2. NO : Operate the M.U.T.-III to set the option STEP 2. M.U.T.-III CAN bus diagnostics Q: Is the check result normal? YES : Go to Step 3. NO : Repair the CAN bus line. STEP 3. M.U.T.-III other system diagnosis code Q: Is the check result normal? YES : Troubleshoot the ETACS-ECU. Refer to ETACS-ECU − Troubleshooting NO : Go to Step 4. STEP 4. M.U.T.-III other system data list • Item No. Item name Normal Item 288 ACC switch ON Turn the ignition switch to the ACC position. OK: Normal condition is displayed. Q: Is the check result normal? YES : Go to Step 5. NO : Refer to ETACS − Inspection Procedure 1 "The ignition switch (ACC) signal is not . STEP 5. Check of short to power supply, short to Q: Is the check result normal? YES : Go to Step 6. NO : Repair the connector(s) or wiring harness. STEP 6. Voltage measurement at radio and CD wiring harness side. (2) Check the voltage between the radio and CD player connector (+B2 terminal) and body earth. OK: System voltage Q: Is the check result normal? YES <Vehicles without display audio> : Go to Step YES <Vehicles with display audio> : Go to Step 9. NO : Go to Step 7. |