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RV METER CHASSIS ELECTRICAL 54A-463 TROUBLE JUDGEMENT COMMENT ON TROUBLE SYMPTOM PROBABLE CAUSES • Malfunction of the RV meter • Malfunction of the ETACS-ECU • Damaged harness wires and connectors • Malfunction of the CAN bus 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 ). On completion, go to Step 2. STEP 2. M.U.T-III other system diagnosis code. Q: Is the diagnosis code set? YES : Diagnose ETACS-ECU (Refer to ETACS- ECU, Troubleshooting ). After diagnosing the ETACS-ECU, go to Step 3. NO : Go to Step 3. STEP 3. M.U.T-III other system diagnosis code. • diagnosis code U1109: ETACS-ECU time out Q: Is the diagnosis code set? YES : Go to Step 4. NO : Go to Step 5. STEP 4. Check whether the diagnosis code is position to "ON" position. (3) On completion, check that the diagnosis code is not reset. Q: Is the diagnosis code set? YES : Replace the ETACS-ECU and register the ID codes (Refer to NO : The trouble can be an intermittent − How to use Troubleshooting/inspection Service − How to Cope with Intermittent Malfunction ). STEP 5. Check whether the diagnosis code is position to "ON" position. (3) On completion, check that the diagnosis code is not reset. Q: Is the diagnosis code set? YES : Replace the RV meter. NO : The trouble can be an intermittent − How to use Troubleshooting/inspection Service − How to Cope with Intermittent Malfunction ). Code No. 26: Engine CAN Timeout CAUTION • If diagnosis code No.26 is set in the RV meter, diagnose the CAN main bus line. • Whenever the RV meter is replaced, ensure that the communication circuit is normal. NOTE: When the diagnosis codes relating to the vehicle equipment. When the vehicle is not equipped |