Inspection Procedure 3: Hazard Lamp Answerback of Dead Lock System does not Work.


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

COMMENTS ON TROUBLE SYMPTOM
If the hazard warning lamp work normally, the ETACS-ECU may be defective.

PROBABLE CAUSES

  • Defective turn-signal lamp
  • Malfunction of the door lock actuator (RH)
  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors

DIAGNOSIS PROCEDURE

STEP 1. Check the operation of the hazard warning lamp.
Check that the hazard warning lamps illuminate normally.

Q. Is the check result normal?
Go to Step 2.
Refer to GROUP 54B, Inspection Procedure G-5 "The hazard warning lamps do not illuminate ".

STEP 2. Check the front door lock actuator switch.
Check that the front door lock actuator switch works normally. Refer to <COLT> or <COLT CZ3>.

Q. Is the check result normal?
Go to Step 3.
Replace the front door lock actuator (RH).

STEP 3. Check the operation of the dead lock system.
If the dead lock system is operated, check that the doors can be dead locked normally.

Q. Is the check result normal?
Go to Step 4.
Refer to .

STEP 4. Check the power supply circuit.
When the ignition switch is turned to the LOCK (OFF) position, check if the hazard warning lamps illuminate.

Q. Is the check result normal?
Go to Step 5.
Refer to GROUP 54B, Inspection Procedure A-1 "Check The Battery Power Supply Circuit to The ETACS-ECU ."

STEP 5. Retest the system.
Check that the dead lock hazard lamp answerback function work normally.

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. Then perform the variant coding (Refer to GROUP 00, Precautions Before Service - How to Perform Variant Coding ).