Code No.B1426: G-sensor of side impact sensor (RH) failure
Code No.B1436: G-sensor of side impact sensor (LH) failure


caution If diagnosis code B1426 or B1436 is set in the SRS-ECU, always diagnose the CAN main bus line.

DIAGNOSIS CODE SET CONDITIONS




  • Analogue G-sensor is not operating.

  • Analogue G-sensor characteristics are abnormal.

  • Analogue G-sensor output is abnormal.

PROBABLE CAUSES



DIAGNOSIS PROCEDURE

STEP 1. M.U.T.-III CAN bus diagnostics
Use the M.U.T.-III to diagnose the CAN bus lines.

Q. Is the check result normal?
Go to Step 2.
Repair the CAN bus line (Refer to GROUP 54D, Diagnosis ).

STEP 2. Check whether the diagnosis code is reset.
Check again if the diagnosis code is set.
(1)Erase the diagnosis code.
(2)Ignition: "LOCK" (OFF) position to "ON"
(3)On completion, check that the diagnosis code is not reset.

Q. Is the diagnosis code set?
Go to Step 3.
There is an intermittent malfunction such as poor engaged connector(s) or open circuit (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).

STEP 3. Check the side impact sensor (front).

  • <For diagnosis code B1426>
    Replace side impact sensor (RH) (Refer to ) and SRS-ECU (Refer to ) with new part.

  • <For diagnosis code B1436>
    Replace side impact sensor (LH) (Refer to ) and SRS-ECU (Refer to ) with new part.
Check the diagnosis code.

Q. Is either diagnosis code B1426 or B1436 set?
Return to Step 1.
The procedure is complete.