INSPECTION PROCEDURE P-5: The driver’s door switch signal is not received. <RH drive vehicles>


caution Whenever the ECU is replaced, ensure that the input signal circuit is normal.


COMMENTS ON TROUBLE SYMPTOM
Input signal from the driver’s door switch is used to operate the functions below. If the signal is abnormal, these functions will not work normally.

  • Lamp reminder function
  • Door-ajar warning buzzer
  • Keyless entry system
  • Sunroof timer
  • Electric retractable remote controlled door mirror
  • Ignition key cylinder illumination lamp
  • Head lamp automatic-shutdown
  • Interior lamp
  • Interior lamp automatic-shutdown
  • Door-ajar warning lamp

POSSIBLE CAUSES

  • Malfunction of the driver’s door switch
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

Step 1. Check the installation condition.
Check that the front door switch (RH) is installed on the body correctly.

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

Step 2. Connector check: D-02 front door switch (RH) connector

Q. Is the check result normal?

Go to Step 3.

Repair the defective connector.

Step 3. Check the front door switch (RH).
Refer to GROUP 42 - Door .

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

Step 4. Connector check: C-219 ETACS-ECU connector

Q. Is the check result normal?

Go to Step 5.

Repair the defective connector.

Step 5. Check the wiring harness between D-02 front door switch (RH) connector terminal No.1 and C-219 ETACS-ECU connector terminal No.10.



note Prior to the wiring harness inspection, check joint connector C-210, and repair if necessary.

  • Check the input line for open circuit.

Q. Is the check result normal?

Go to Step 6.

Repair the wiring harness.

Step 6. SWS monitor data list.
<Selected item> ETACS ECU
  • Driver’s door: open
Item No.
 Item name
 Normal condition
Item 32
 DR DOOR SW
 ON
OK: Normal condition is displayed.

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.