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Q.
Is diagnosis code B1519 set?
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(1)Check that the negative auxiliary battery terminal is disconnected. If the negative
auxiliary battery terminal is connected, disconnect it.
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(2)Disconnect the B-113 connector and then reconnect them.
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(3)Connect the negative auxiliary battery terminal.
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(4)After erasing the diagnosis code memory, check the diagnosis code again.
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(5)Disconnect the negative auxiliary battery terminal.
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Q.
Is diagnosis code B1450 set?
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The procedure is complete. It is assumed that diagnosis code B1450 set as connector
B-113 was engaged improperly.
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(1)Check that the negative auxiliary battery terminal is disconnected. If the negative
auxiliary battery terminal is connected, disconnect it.
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(2)Disconnect connectors B-113 and B-29 and then reconnect them. Slide the outer hosing of
intermediate connector B-29 in the arrow direction shown.
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(3)Use the flat-tipped screwdriver to pull out the locking button of C-10 harness side connector
to the direction of the arrow. After releasing the lock, disconnect the connector. Then, reconnect
the connector. (4)Connect the negative auxiliary battery terminal. (5)After erasing the diagnosis code memory, check the diagnosis code again.
Q.
Is diagnosis code B1450 set?
Go to Step 4
The procedure is complete. It is assumed that diagnosis code B1450 set as connector
B-113, B-29 or C-10 was engaged improperly.
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(1)Check that the negative auxiliary battery terminal is disconnected. If the negative
auxiliary battery terminal is connected, disconnect it.
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(2)Use the flat-tipped screwdriver to pull out the locking button of C-10 harness side connector
to the direction of the arrow. After releasing the lock, disconnect the connector.
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(3)Connect the dummy resistor (Special tool: MB991865) to the resistor harness (Special tool:
MB991884). (4)Connect special tool (MB991884) to the C-10 harness side connector. (5)Connect the negative auxiliary battery terminal. (6)After erasing the diagnosis code memory, check the diagnosis code again.
Q.
Is diagnosis code B1450 set?
Go to Step 5
Replace the curtain air bag module (LH) (Refer to ).
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(1)Check that the negative auxiliary battery terminal is disconnected. If the negative
auxiliary battery terminal is connected, disconnect it.
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(2)Disconnect the B-113 SRS-ECU connector.
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(3)
danger |
To prevents the air bag from deploying unintentionally, disconnect
the curtain air bag module (LH) connector to short the squib circuit.
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Use the flat-tipped screwdriver to pull out the locking button of C-10 harness side connector
to the direction of the arrow. After releasing the lock, disconnect the connector.
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(4)
caution |
The short spring may not be released due to the insufficient insertion. Therefore, insert
the insulator for 4 mm or more.
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Insert an insulator (width: 3 mm, thickness: 0.5 mm) such as cable tie between the terminal
1/2 and the short spring, and release the short spring. (5)
caution |
Do not insert a test probe into the terminal from
its front side directly as the connector contact pressure may be weakened.
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Check the continuity between the B-113 wiring harness side connector terminal No. 1 and
No. 2. OK: No continuity
Q.
Is the check result normal?
Go to Step 6
Repair the harness wires between SRS-ECU connector B-113 (terminal No.1 and 2)
and curtain air bag module (LH) connector C-10 (terminal No.1 and 2).
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Q.
Is diagnosis code B1450 set?
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Replace the SRS-ECU (Refer to ).
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An intermittent malfunction is suspected (Refer to GROUP 00, How to Cope with
Intermittent Malfunction ).
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