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(1)Disconnect the negative battery terminal.
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(2)Disconnect seat belt pre-tensioner (passenger’s side) connector D-23 <LHD>,
D-15 <RHD>. Use a flat-tipped screwdriver to pull out the locking button at the harness
side connector, and then disconnect the connector.
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(3)Connect special tool dummy resistor (MB991865) to special tool resistor harness (MB991884). (4)Connect special tool (MB991884) to the D-23 <LHD>, D-15 <RHD> harness side
connector. (5)Connect the negative battery terminal. (6)Erase diagnosis code memory, and then check the diagnosis code.
Q.
Is diagnosis code B1611 set?
Go to Step 2.
Replace the seat belt with pre-tensioner (passenger’s side) (Refer to ).
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(1)Disconnect the negative battery terminal.
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(2)Disconnect SRS-ECU connector C-153.
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(3)
danger |
To prevents the seat belt pre-tensioner from deploying unintentionally, disconnect the
seat belt pre-tensioner (passenger’s side) connector D-23 <LHD>, D-15 <RHD>
to short the squib circuit.
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Disconnect seat belt pre-tensioner (passenger’s side) connector D-23 <LHD>,
D-15 <RHD>. Use a flat-tipped screwdriver to pull out the locking button at the harness
side connector, and then disconnect the connector.
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(4)
caution |
Insert an insulator such as a cable tie to a depth of 7 mm or more, otherwise the short
spring will not be released.
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Insert a cable tie [3 mm wide, 0.5 mm thick] between terminals 5, 6
and the short spring to release the short spring.
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(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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Resistance measurement between C-153 harness side connector terminals 5, 6 and body earth. OK: Open circuit
Q.
Is the check result normal?
Go to Step 3 .
Repair the harness wires between SRS-ECU connector C-153 (terminal No.5 and 6)
and the seat belt pre-tensioner (passenger’s side) connector D-23 <LHD>, D-15 <RHD>
(terminal No.1 and 2).
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Q.
Is diagnosis code B1611 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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