|
INSPECTION PROCEDURE P-4: The driver's door switch signal is not received.
|
|  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.
- Ignition key reminder function
- Reminder preventing keys from being left inserted
- Power window timer function
- Ignition key cylinder illumination lamp
- Headlamp automatic shutdown function
|
| POSSIBLE CAUSES
- Malfunction of the driver's door switch
- Malfunction of the ETACS-ECU
- Damaged harness wires and connectors
|
| |
| |
| Step 1. Check the installation condition.
Check that the door switch (front, RH) is installed on the body correctly.
Q: Is the check result normal?
YES:
Go to Step 2  .
NO:
Correct the installation condition.
|
| Step 2. Connector check: D-42 door switch (front, RH) connector Q: Is the check result normal?
YES:
Go to Step 3 .
NO:
Repair the connector.
|
| Step 3. Check the door switch (front, RH).
Refer to GROUP 42 -
Door  .
Q: Is the check result normal?
YES:
Go to Step 4 .
NO:
Replace the door switch (front, RH).
|
| Step 4. Connector check: C-217 ETACS-ECU connector Q: Is the check result normal?
YES:
Go to Step 5 .
NO:
Repair the connector.
|
| Step 5. Check the wiring harness between D-42 door switch (front, RH) connector terminal No.3 and C-217 ETACS-ECU connector terminal No.10. NOTE: Prior to the wiring harness inspection, check joint connector C-221, and repair if necessary.
- Check the input line for open circuit.
Q: Is the check result normal?
YES:
Go to Step 6 .
NO:
Repair the wiring harness.
|
| Step 6. Retest the system.
Check that the driver's door switch signal is received normally.
Q: Is the check result normal?
YES:
The trouble can be an intermittent malfunction (Refer to GROUP 00 -
How to Cope with Intermittent Malfunction ).
NO:
Replace the ETACS-ECU.
|