Inspection Procedure 1: Electric retractable remote controlled door mirror does not work at all.





caution Whenever the ECU is replaced, ensure that the input and output signal circuits are normal.












COMMENTS ON TROUBLE SYMPTOM


If the electric retractable remote controlled door mirror does not work at all, these power supply circuit(s), these earth circuit(s), remote controlled mirror switch or ETACS-ECU may be defective.

POSSIBLE CAUSES



  • Malfunction of the remote controlled mirror switch
  • Malfunction of ETACS-ECU
  • Damaged harness wires and connectors

DIAGNOSTIC PROCEDURE


Step 1. ECU check on the SWS monitor.


Check that the power supply and earth lines to the ETACS-ECU and the SWS communication lines are normal.

  • Ignition switch: ACC
ECU TO BE CHECKED
  • ETACS ECU
OK: "OK" is displayed on the "ETACS ECU" menu.

Q. Is the check result normal?

Go to Step 2.
Refer to GROUP 54C - SWS, Inspection Procedure 2 "Communication with the ETACS ECU is not possible ."

Step 2. SWS monitor data list.


Check the SWS communication signal, which are related to the electric retractable remote controlled mirror.
Selected item ETACS ECU
  • Ignition switch: ACC
Item No.
Item name
Normal conditions
Item 31
IG SW (ACC)
ON
OK: Normal condition is displayed.

Q. Is the check result normal?

Go to Step 3.
Refer to GROUP 54A, ETACS - Inspection procedure C-1 "The ignition switch (ACC) signal is not received ."

Step 3. ETACS switch data by using the SWS monitor


Check the ETACS-ECU signal, which is related to the electric retractable remote controlled mirror.

  • Remote controlled mirror switch (folding/unfolding switch): ON
Item No.
Item name
Normal conditions
Item 14
Retractable mirror switch
ON
OK: Normal condition is displayed

Q. Is the check result normal?

Go to Step 4.
Refer to GROUP 54A, ETACS - Inspection procedure C-18 "Signal is not received from the remote controlled mirror switch (folding/unfolding switch) ."

Step 4. Connector check: D-419 ETACS-ECU connector.


Q. Is the check result normal?

Go to Step 5.
Repair the connector.

Step 5. Voltage measurement at the D-419 ETACS-ECU connector.


(1)Remove the ETACS-ECU, and measure at the junction block side.
(2)Check the voltage between the D-419 ETACS-ECU connector terminal No.2 and body earth.
OK: System voltage

Q. Is the check result normal?

Go to Step 7.
Go to Step 6.

Step 6. Check the wiring harness between D-419 ETACS-ECU connector terminal No.2 and the fusible link (2).


note Prior to the wiring harness inspection, check intermediate connectors D-240 and junction block connector D-404, and repair if necessary.

  • Check the power supply line to the battery for open circuit.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
Repair the wiring harness.

Step 7. Retest the system.


Check that the electric retractable remote controlled mirror works normally.

Q. Is the check result normal?

The trouble can be an intermittent malfunction (Refer to GROUP 00 - How to Cope with Intermittent Malfunction ).
Replace the ETACS-ECU.