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(1)Disconnect the negative battery
terminal.
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![](../../../img/52/AC302435AH00ENG.png)
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(2)By sliding the A section (in the
figure) of air bag module connector C-312 in the arrow
direction, disconnect the connector.
|
![](../../../img/52/AC300945AF00ENG.png)
|
(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.
|
Insert special tool (MB991866) into clock spring
side air bag module connector C-312 by
backprobing. (5)Connect the negative battery
terminal. (6)Erase the diagnosis code memory, and check
the diagnosis code.
Q.
Is diagnosis code 22 set?
Go to Step
2.
Replace
the driver’s air bag module (Refer to ).
|
|
(1)Disconnect the negative battery
terminal.
|
![](../../../img/52/AC313423AH00ENG.png)
|
(2)Disconnect the clock spring
connector C-309.
|
![](../../../img/52/AC300949AE00ENG.png)
|
(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.
|
Insert special tool (MB991866) into clock spring
harness side connector C-309 (terminal
No.3 and 4) by backprobing. (5)Connect the negative
battery terminal. (6)Erase the diagnosis code memory, and
check the diagnosis code.
Q.
Is diagnosis code 22 set?
Go to Step
3.
Replace
the clock spring (Refer to ).
|
![](../../../img/52/AC311438AF00ENG.png)
![](../../../img/52/AC313423AH00ENG.png)
|
(1)Disconnect SRS-ECU connector
C-147 and clock spring connector C-309.
|
![](../../../img/52/AC105924AG00ENG.png)
|
(2)
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.11 and the clock
spring connector C-309
terminal No.3
- SRS-ECU connector C-147 terminal No.12 and the clock
spring connector C-309 terminal
No.4
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.11 and 12)
and clock spring connector C-309 (terminal No.3 and
4).
|
|
Q.
Is diagnosis code 22 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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