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Q.
Is diagnosis code B1519 set?
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(1)Disconnect the negative battery terminal.
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(2)Disconnect the connectors C-130 and then reconnect it. (3)Connect the negative battery terminal. (4)Erase the diagnosis code memory, and check the diagnosis code.
Q.
Is diagnosis code B1603 set?
Go to Step 3.
The procedure is complete. It is assumed that diagnosis code B1603 set as connector
C-130 was engaged improperly.
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(1)Disconnect the negative battery terminal.
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(2)Disconnect the connectors C-130 and then reconnect them.
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(3)Disconnect connector D-15 <LHD> or D-23 <RHD> and then reconnect them. Use a flat-tipped
screwdriver to pull out the locking button at the harness side connector.
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(4)Disconnect connectors C-123, and then reconnect it. Slide the outer hosing of intermediate connector
(instrument panel wiring harness side) C-123 in the arrow direction shown. (5)Connect the negative battery terminal. (6)Erase the diagnosis code memory, and check the diagnosis code.
Q.
Is diagnosis code B1603 set?
Go to Step 4.
The procedure is complete. It is assumed that diagnosis code B1603 set as connector
C-123, C-130 or D-15 <LHD> or D-23 <RHD> was engaged improperly.
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(1)Disconnect the negative battery terminal.
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(2)Disconnect seat belt pre-tensioner (driver’s side) connector D-15 <LHD> or
D-23 <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-15 <LHD> or D-23 <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 B1603 set?
Go to Step 5.
Replace the seat belt with pre-tensioner (driver’s side) (Refer to ).
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(1)Disconnect the negative battery terminal.
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(2)Disconnect SRS-ECU connector C-130.
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(3)
danger |
To prevents the seat belt pre-tensioner from operating unintentionally, disconnect the
seat belt pre-tensioner (driver’s side) connector D-15 <LHD> or D-23 <RHD>
to short the squib circuit.
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Disconnect seat belt pre-tensioner (driver’s side) connector D-15 <LHD> or
D-23 <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 4mm 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 29, 30
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-130 harness side connector terminals 29 and 30 OK: Open circuit
Q.
Is the check result normal?
Go to Step 6.
Repair the harness wires between SRS-ECU connector C-130 (terminal No.29 and 30)
and the seat belt pre-tensioner (driver’s side) connector D-15 <LHD> or D-23 <RHD> (terminal
No.1 and 2)
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Q.
Is diagnosis code B1603 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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