INSPECTION PROCEDURE E-5: Multimode keyless entry system function 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-folding door mirrors work normally, the ETACS-ECU may be defective.

POSSIBLE CAUSES

  • Malfunction of the keyless entry transmitter
  • Malfunction of the ETACS-ECU

DIAGNOSIS PROCEDURE

Step 1. Check the operation of the electric folding outside rear-view mirrors.
Check that the electric folding outside rear-view mirrors operate normally by using the remote controlled mirror switch (folding/unfolding switch).

Q. Is the check result normal?
Go to Step 2
Refer to Inspection Procedure I-1 "Electric retractable remote controlled door mirror does not work at all. ."

Step 2. Check the keyless entry transmitter.
Check that the keyless entry system works normally.

Q. Is the check result normal?
Go to Step 3
Refer to Inspection Procedure E-1 "Keyless Entry System does not Work ."

Step 3. ECU check by using the SWS monitor.
Check that the power supply and earth lines to the ETACS-ECU and the SWS communication lines are normal.

  • Ignition switch: OFF
  • Operate the multimode function with the keyless entry transmitter.
ECU TO BE CHECKED
  • ETACS ECU
OK: "OK" is displayed on the "ETACS ECU" menu.

Q. Is the check result normal?
Go to Step 4.
Refer to Inspection Procedure A-3 "Communication with ETACS-ECU is not possible ."

Step 4. Use the SWS monitor to examine the keyless entry system for signal reception.
Check the condition of the keyless entry transmitter.
Operation switch
 Normal conditions (received signal)
LOCK (1 second or more)
 LOCK
LCK LNG PUSH
UNLOCK (1 second or more)
 UNLOCK
ULCK LNG PUSH
OK: By operating the switch as shown in the table above, relevant normal conditions are displayed.

Q. Are the check result normal?
Go to Step 5.
Refer to inspection procedure P-21 "Each switch signal of the keyless entry transmitter is not received ."

Step 5. SWS monitor data list.
Check the SWS communication signal, which is related to the multi-mode keyless entry system.
<Selected item> ETACS
  • Ignition switch: OFF
  • Operate the multi-mode function with the keyless entry transmitter.
Item No.
 Item name
 Normal condition
Item 30
 IGNITION SW IG1
 OFF
Item 34
 KEYLESS ENTRY
 MULTI CLOSE, MULTI OPEN or MULTI STOP
OK: Normal conditions displayed for all the items

Q. Are the check result normal?
Normal conditions are displayed for all the items. : Go to Step 6.
Normal condition is not displayed for item No.30 : Refer to inspection procedure P-2 "The ignition switch (IG1) signal is not received ."
Normal condition is not displayed for item No.34 : Replace the ETACS-ECU.

Step 6. Retest the system.
Check that the multi-mode keyless entry system 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 power window main switch.