Inspection Procedure 7: The rear door switch (RH) signal is not received.


caution Before replacing the ECU, ensure that the power supply circuit, the earth circuit and the communication circuit are normal.








COMMENTS ON TROUBLE SYMPTOM


If there is an error to the rear door switch (RH) input signal, the rear door switch (RH) signal is no longer output to the communication line.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

STEP 1. Check the installation condition.
Check that the rear door switch (RH) is installed to the body correctly.

Q. Is the check result normal?
Go to Step 2.
Correct the installation condition.

STEP 2. Connector check: D-07 rear door switch (RH) connector

Q. Is the check result normal?
Go to Step 3.
Repair the defective connector.

STEP 3. Rear door switch (RH) check
Refer to GROUP 42 - Door .

Q. Is the check result normal?
Go to Step 4.
Replace the rear door switch (RH).

STEP 4. Connector check: C-313 ETACS-ECU connector

Q. Is the check result normal?
Go to Step 5.
Repair the defective connector.

STEP 5. Wiring harness check between the D-07 rear door switch (RH) connector terminal No. 3 and the C-313 ETACS-ECU connector terminal No. 8
Check the input lines for open circuit and short circuit.

Q. Is the check result normal?
Go to Step 6.
Repair the wiring harness.

STEP 6. M.U.T.-III data list

    Open the rear right door.
Item No.
 Item name
 Normal condition
Item 258
 RR door ajar switch
 Open
OK: Normal condition is displayed.

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 ETACS-ECU.