B1743 – Blown hazard warning lamp fuse MMC Colt




COMMENTS ON TROUBLE SYMPTOM


PROBABLE CAUSES

  • Malfunction of the ETACS-ECU
  • Damaged harness wires and connectors

  • DIAGNOSIS PROCEDURE

    STEP 1. Check the hazard warning lamp fuse.

    Q. Is the check result normal?

    STEP 2. Connector check: B-234 ETACS-ECU connector

    Q. Is the check result normal?

    STEP 3. Voltage measurement at the B-234 ETACS-ECU connector.

    Q. Is the check result normal?

    STEP 4. Check the wiring harness between B-234 ETACS-ECU connector terminal No.5 and the fusible link (1).

  • Check the power supply line for open circuit.
  • Q. Is the check result normal?

    STEP 5. Check whether the diagnosis code is reset.

    Q. Is the diagnosis code set?

    Author: admin