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(1)Disconnect the negative battery
terminal.
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![](../../../img/52/AC313481AL00ENG.png)
![](../../../img/52/AC208384AO00ENG.png)
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(2)Disconnect curtain air bag
module connector G-04. Use a flat-tipped screwdriver to pull
out the locking button at the harness side connector, and
then disconnect the connector.
|
![](../../../img/52/AC301553AK00ENG.png)
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(3)Connect special tool dummy
resistor (MB991865) to special tool resistor harness
(MB991884). (4)Connect special tool (MB991884) to the
G-04 harness side connector. (5)Connect the negative
battery terminal. (6)Erase diagnosis code memory, and
then check the diagnosis code.
Q.
Is diagnosis code 3B set?
Go to Step
2.
Replace
the curtain air bag module (Refer to ).
|
|
(1)Disconnect the negative battery
terminal.
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![](../../../img/52/AC311438AG00ENG.png)
![](../../../img/52/AC313481AL00ENG.png)
![](../../../img/52/AC208384AO00ENG.png)
|
(2)Disconnect SRS-ECU connector
C-146 and curtain air bag module connector G-04, and measure
at the wiring harness side. For connector G-04, use a
flat-tipped screwdriver to pull out the
locking button at the harness side connector, and then
disconnect the connector.
|
![](../../../img/52/AC201287BK00ENG.png)
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(3)Connect G-04 harness side
connector to special tool resistor harness
(MB991884).
|
![](../../../img/52/AC303201AC00ENG.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-146 terminal No.29 and special
tool terminal No.2
- SRS-ECU connector C-146 and special tool terminal
No.1
OK: Less than 2 Ω
Q.
Are the check results normal?
Go to Step
3.
Repair
the harness wire between SRS-ECU connector C-146 (terminal
No.29 and 30)
and curtain air bag module connector G-04 (terminal No.1and
2).
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|
Q.
Is diagnosis code No.3B set?
|
|
Replace the SRS-ECU
(Refer to ).
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|
|
|
An intermittent
malfunction is suspected (Refer to GROUP 00, How to Use
Troubleshooting/Inspection
Service Points ).
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