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RADIO AND CD PLAYER CHASSIS ELECTRICAL 54A-298 Code No.B2420 Power integrated circuit CAUTION • If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior • Before replacing the radio and CD player, be sure to check that the power supply circuit, TROUBLE JUDGMENT COMMENTS ON TROUBLE SYMPTOM PROBABLE CAUSES • Malfunctions of radio and CD player • Malfunction of CAN bus line wiring harness and connector DIAGNOSIS PROCEDURE STEP 1. M.U.T.-III CAN bus diagnostics Q: Is the check result normal? YES : Go to Step 2. NO : Repair the CAN bus line (Refer to GROUP − Troubleshooting ). STEP 2. Check whether the diagnosis code is position to "ON" position. (3) Check if diagnosis code is set. Q: Is the diagnosis code set? YES : Replace the radio and CD player. NO : The trouble can be an intermittent − How to use Troubleshooting/inspection Service − How to Cope with Intermittent Malfunction ). Code No.B2421 Radio tuner CAUTION • If there is any problem in the CAN bus lines, an incorrect diagnosis code may be set. Prior • Before replacing the radio and CD player, be sure to check that the power supply circuit, TROUBLE JUDGMENT COMMENTS ON TROUBLE SYMPTOM PROBABLE CAUSES • Malfunctions of radio and CD player • Malfunction of CAN bus line wiring harness and connector DIAGNOSIS PROCEDURE STEP 1. M.U.T.-III CAN bus diagnostics Q: Is the check result normal? YES : Go to Step 2. NO : Repair the CAN bus line (Refer to GROUP − Troubleshooting ). STEP 2. Check whether the diagnosis code is position to "ON" position. (3) Check if diagnosis code is set. |