B1461 – Seat belt pre-tensioner (RH) (squib) system (open- circuited in the squib circuit) MMC Colt

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OPERATION

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DIAGNOSIS CODE SET CONDITIONS

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PROBABLE CAUSES

Open circuit in the seat belt pre-tensioner (RH) (squib) circuit

Improper connector contact

Malfunction of the SRS-ECU

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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 seat belt pre-tensioner (RH) (M.U.T.-III diagnosis code).

Q. Is diagnosis code B1461 set?

STEP 4. Resistance measurement between the SRS-ECU connector B-109 (terminal No.17 and 18) and the seat belt pre-tensioner (RH) connector C-31 (terminal No.1 and 2).

SRS-ECU connector B-109 (terminal No.17) and the special tool (terminal No.2)

SRS-ECU connector B-109 (terminal No.18) and the special tool (terminal No.1)

Q. Are the check results normal?

STEP 5.Check whether the diagnosis code is reset.

Q. Is diagnosis code B1461 set?