|
(1)Disconnect the negative battery
terminal.
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![](../../../img/52/AC313414AV00ENG.png)
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(2)Disconnect intermediate
connector C-148 (pre-tensioner harness and instrument panel
harness
connection).
|
![](../../../img/52/AC006042CG00ENG.png)
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(3)Connect special tool dummy
resistor (MB991865) to special tool resistor harness
(MB991866). (4)
caution |
Do not insert a test probe
into the terminal from its front side directly
as the connector contact pressure may be
weakened.
|
Connect special tool (MB991866) to the C-148 harness
side connector by backprobing. (5)Connect the negative
battery terminal. (6)Erase diagnosis code memory, and
then check the diagnosis code.
Q.
Is diagnosis code 27 set?
Go to Step
2.
Go to Step
3.
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|
(1)Disconnect the negative battery
terminal.
|
![](../../../img/52/AC311438AF00ENG.png)
|
(2)Disconnect SRS-ECU connector
C-147.
|
![](../../../img/52/AC313414AV00ENG.png)
|
(3)Disconnect intermediate
connector C-148 (pre-tensioner harness and instrument panel
harness
connection).
|
![](../../../img/52/AC304089AC00ENG.png)
|
(4)
caution |
Do not insert a test probe
into the terminal from its front side directly
as the connector contact pressure may be
weakened.
|
Resistance measurement between the following
terminals.
- SRS-ECU connector C-147 terminal No.5 and harness
side connector C-148 terminal
No.2
- SRS-ECU connector C-147 terminal No.6 and harness
side connector C-148 terminal
No.1
OK: Less than 2 Ω
Q.
Are the check results normal?
Go to Step
4.
Repair
the harness wires between SRS-ECU connector C-147 (terminal
No.5 and 6)
and harness side connector C-148 (terminal No.1 and
2).
|
|
(1)Disconnect the negative battery
terminal.
|
![](../../../img/52/AC313414AV00ENG.png)
|
(2)Disconnect intermediate
connector C-148 (pre-tensioner harness and instrument panel
harness
connection).
|
![](../../../img/52/AC313429AN00ENG.png)
![](../../../img/52/AC300147AK00ENG.png)
|
(3)Driver’s seat belt
pre-tensioner connector D-32, and measure at the wiring
harness
side. For connector D-32, use a flat-tipped screwdriver to
pull out the locking button at the
harness side connector, and then disconnect the
connector.
|
![](../../../img/52/AC201287BM00ENG.png)
|
(4)Connect D-32 harness side
connector to special tool resistor harness
(MB991884).
|
![](../../../img/52/AC304090AC00ENG.png)
|
(5)
caution |
Do not insert a test probe
into the terminal from its front side directly
as the connector contact pressure may be
weakened.
|
Resistance measurement between the following
terminals.
- pre-tensioner side connector C-148 terminal No.1 and
special tool terminal
No.2
- pre-tensioner side connector C-148 terminal No.2 and
special tool terminal No.1
OK: Less than 2 Ω
Q.
Are the check results normal?
Replace the
driver’s seat belt pre-tensioner (Refer to ).
Repair the harness
wires between pre-tensioner side connector (terminal No.1
and
2) and driver’s seat belt pre-tensioner connector D-32
(terminal No.1 and 2).
|
|
Q.
Is diagnosis code No.27 set?
|
|
Replace the SRS-ECU
(Refer to ).
|
|
|
|
An intermittent
malfunction is suspected (Refer to GROUP 00, How to Use
Troubleshooting/Inspection Service
Points ).
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