Code No. 29: No receive fault detect signal


caution
  • If diagnosis code No.29 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.

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
Use the M.U.T.-III to diagnose the CAN bus lines.

Q. Is the check result normal?
Go to Step 2.
Repair the CAN bus line (Refer to GROUP 54C - Troubleshooting ). On completion, go to Step 2.

STEP 2. M.U.T-III other system diagnosis code.
Check whether the ETACS-ECU diagnosis code is set.

Q. Is the diagnosis code set?
Diagnose ETACS-ECU (Refer to ETACS-ECU, Troubleshooting ). After diagnosing the ETACS-ECU, go to Step 3.
Go to Step 3.

STEP 3. Check whether the diagnosis code is reset.
Check again if the diagnosis code is set.
(1)Erase the diagnosis code.
(2)Turn the ignition switch from "LOCK" (OFF) position to "ON" position.
(3)On completion, check that the diagnosis code is not reset.

Q. Is the check result normal?
The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Use Troubleshooting/inspection Service Points - How to Cope with Intermittent Malfunction ).
Replace the RV meter.