Code No.B1519: SRS-ECU connector lock out of order

TROUBLE JUDGEMENT

The connector lock switch which detects the status of connection is established in the SRS-ECU connector. This code is set when the SRS-ECU connector is not connected sufficiently or a poor connection is present in the connector lock switch.

PROBABLE CAUSES

Damaged connectors
Malfunction of the SRS-ECU

DIAGNOSIS PROCEDURE

STEP 1. Connector lock check: B-111, B-112 and B-113 SRS-ECU connectors.

(1)Check that the negative battery auxiliary terminal is disconnected. If the negative battery auxiliary terminal is connected, disconnect it.

(2)Disconnect the B-111, B-112, B-113 SRS-ECU connectors and then reconnect them.

(3)Connect the negative auxiliary battery terminal.

(4)After erasing the diagnosis code memory, check the diagnosis code again.

(5)Disconnect the negative auxiliary battery terminal.

(6)After erasing the diagnosis code memory, check the diagnosis code again.

(7)Disconnect the negative auxiliary battery terminal.

Q. Is diagnosis code B1519 set?

	Go to Step 2

	The procedure is complete. It is assumed that diagnosis code B1519 set as connectors B-111, B-112 and B-113 were engaged improperly.

STEP 2. Check at B-111, B-112 and B-113 SRS-ECU connectors

(1)Disconnect B-111, B-112 and B-113 SRS-ECU connectors.

(2)Check the connector lock switch terminal inside the harness side connector for improper contact or deformation.

Q. Are the SRS-ECU connectors B-111, B-112 and B-113 in good condition?

Go to Step 3

Replace the B-111, B-112 and B-113 SRS-ECU connector .

STEP 3. Check whether the diagnosis code is reset.

Q. Is diagnosis code B1519 set?

	Replace the SRS-ECU (Refer to ).

	An intermittent malfunction is suspected (Refer to GROUP 00, How to Cope with Intermittent Malfunction ).

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