|
|
MITSUBISHI MULTI COMMUNICATION SYSTEM (MMCS) CHASSIS ELECTRICAL 54A-398 COMMENTS ON TROUBLE SYMPTOM PROBABLE CAUSES • Malfunction of speaker • Malfunctions of multivision display • Malfunction of audio amplifier • 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 "Number of speaker" is set to "Premium." Q: Is the check result normal? YES : Go to Step 2. NO : Operate the M.U.T.-III to set the option STEP 2. Check the MMCS service mode, CAN and coding data for the MMCS service mode. (2) Check if "PREMIUM" is displayed. Q: Is the check result normal? YES : Go to Step 3. NO : Go to Step 4. STEP 3. Check the service data log for the MMCS Q: Is the service data log for the SP (speaker) displayed? Go to Step 4. NO : Go to Step 7. STEP 4. M.U.T.-III CAN bus diagnostics Q: Is the check result normal? YES : Go to Step 5. NO : Repair the CAN bus line. STEP 5. Check whether the diagnosis code is set. position to "ON" position. (3) Check if diagnosis code is set. Q: Is the diagnosis code set? YES : Troubleshoot the MMCS (Refer to ). NO : Go to Step 6. STEP 6. M.U.T.-III other system diagnosis code Q: Is the diagnosis code set? YES : Diagnose the ETACS-ECU (Refer to GROUP 54A − ETACS-ECU − Troubleshooting ). NO : Go to Step 7. STEP 7. Checking with audio speaker check Q: Is the check result normal? YES (normal for all) : The trouble can be an intermittent malfunction (Refer to GROUP − How to use Troubleshooting/inspection Service Points − How to Cope with Intermittent Malfunction ). NO (Either a speaker, a tweeter or a subwoofer is Go to Step 8. AC701264 AR Connector: F-25 <LANCER> F-25 (B) |