Posted in Mitsubishi Colt

B1438 – Side impact sensor (LH) communication error , B1439 – Side impact sensor (LH) communication impossible, B1585 – Side impact sensor (LH) ID fault MMC Colt

 Posted by  Posted on September 28, 2020

OPERATION

DIAGNOSIS CODE SET CONDITIONS

PROBABLE CAUSES

  • Damaged wiring harnesses or connectors
  • Malfunction of the side impact sensor (LH)
  • Malfunction of the SRS-ECU

    • DIAGNOSIS PROCEDURE

    STEP 1. M.U.T.-III CAN bus diagnostics.

    Q. Is the CAN bus line found to be normal?

    STEP 2. Check whether the diagnosis code is reset.

    Q. Is the diagnosis code set?

    STEP 3. Check the impact sensor (LH) (M.U.T.-III diagnosis code).

    Q. Is diagnosis code B1428, B1429 or B1584 set?

    STEP 4. Check the harness wires for open circuit and short circuit between SRS-ECU connector B-109 (terminal No.40 and 41) and side impact sensor (LH) connector C-19 (terminal No.2 and 1).

    Q. Is the check result normal?

    STEP 5.Check whether the diagnosis code is reset.

    Q. Is diagnosis code B1438, B1439 or B1585 set?

    OPERATION

    DIAGNOSIS CODE SET CONDITIONS

    PROBABLE CAUSES

  • Damaged wiring harnesses or connectors
  • Malfunction of the side impact sensor (LH)
  • Malfunction of the SRS-ECU

    • DIAGNOSIS PROCEDURE

    STEP 1. M.U.T.-III CAN bus diagnostics.

    Q. Is the CAN bus line found to be normal?

    STEP 2. Check whether the diagnosis code is reset.

    Q. Is the diagnosis code set?

    STEP 3. Check the impact sensor (LH) (M.U.T.-III diagnosis code).

    Q. Is diagnosis code B1428, B1429 or B1584 set?

    STEP 4. Check the harness wires for open circuit and short circuit between SRS-ECU connector B-109 (terminal No.40 and 41) and side impact sensor (LH) connector C-19 (terminal No.2 and 1).

    Q. Is the check result normal?

    STEP 5.Check whether the diagnosis code is reset.

    Q. Is diagnosis code B1438, B1439 or B1585 set?

    OPERATION

    DIAGNOSIS CODE SET CONDITIONS

    PROBABLE CAUSES

  • Damaged wiring harnesses or connectors
  • Malfunction of the side impact sensor (LH)
  • Malfunction of the SRS-ECU

    • DIAGNOSIS PROCEDURE

    STEP 1. M.U.T.-III CAN bus diagnostics.

    Q. Is the CAN bus line found to be normal?

    STEP 2. Check whether the diagnosis code is reset.

    Q. Is the diagnosis code set?

    STEP 3. Check the impact sensor (LH) (M.U.T.-III diagnosis code).

    Q. Is diagnosis code B1428, B1429 or B1584 set?

    STEP 4. Check the harness wires for open circuit and short circuit between SRS-ECU connector B-109 (terminal No.40 and 41) and side impact sensor (LH) connector C-19 (terminal No.2 and 1).

    Q. Is the check result normal?

    STEP 5.Check whether the diagnosis code is reset.

    Q. Is diagnosis code B1438, B1439 or B1585 set?

    Author: admin