Posted in Mitsubishi Colt

B1437 – Side impact sensor (LH) voltage error 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-airbag module (LH) (squib)
  • 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 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 4. Check the impact sensor (LH) (M.U.T.-III diagnosis code).

    Q. Is diagnosis code B1427 set?

    STEP 5. Check whether the diagnosis code is reset.

    Q. Is diagnosis code B1437 set?

    Author: admin