B1451 – Curtain air bag module (LH) (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

Improper connector contact

Open circuit in the curtain air bag module (LH) (squib) circuit

Malfunction of the SRS-ECU

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DIAGNOSIS PROCEDURE

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

Q. Is the check result normal?

STEP 2. Check whether the diagnosis code is reset.

Q. Is the diagnosis code set?

STEP 3. Check the curtain air bag module (LH) (M.U.T.-III diagnosis code).

Q. Is diagnosis code B1451 set?

STEP 4. Resistance measurement between SRS-ECU connector B-109 (terminal No.9 and 10) and the curtain air bag module (LH) connector C-08 (terminal No.1 and 2)

SRS-ECU connector B-109 terminal No.9 and special tool terminal No.2

SRS-ECU connector B-109 terminal No.10 and special tool terminal No.1

Q. Are the check results normal?

STEP 5. Check whether the diagnosis code is reset.

Q. Is diagnosis code No.B1451 set?