![](../../../img/52/AC311438AF00ENG.png)
![](../../../img/52/AC313416BF00ENG.png)
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(1)Disconnect SRS-ECU connector
C-126 and diagnosis connector C-126, and measure at the
wiring harness
side.
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![](../../../img/52/AC006263AN00ENG.png)
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(2)
caution |
Do not insert a test probe
into the terminal from of the SRS-ECU connector
C-147 its front
side directly as the connector contact pressure
may be weakened.
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Resistance measurement between the following
terminals.
- SRS-ECU connector C-147 (terminal No.20) and
diagnosis connector C-126 (terminal
No.7)
OK: Less than 2 Ω
Q.
Is the check results normal?
Go to Step
2.
Go to Step
4.
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![](../../../img/52/AC311438AF00ENG.png)
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(1)Disconnect SRS-ECU connector
C-147 and measure at the wiring harness side.
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![](../../../img/52/AC209044AD00ENG.png)
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(2)
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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Check for continuity between terminal 19 and body
earth. OK: Less than 2 Ω
Q.
Is the check result normal?
Go to Step
3.
Check the
harness wire for open circuit between SRS-ECU connector
C-147 (terminal
No.19) and earth, and repair if necessary.
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![](../../../img/52/AC311438AF00ENG.png)
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(1)Disconnect SRS-ECU connector
C-147 and measure at the wiring harness side. (2)Connect
the negative battery terminal. (3)Turn the ignition
switch to the "ON" position.
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![](../../../img/52/AC006265AS00ENG.png)
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(4)
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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Voltage measurement between terminals 13, 16 and
body earth. OK: 9 V or more
Q.
Is the check result normal?
Go to Step
6.
Go to Step
5.
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![](../../../img/52/AC313416BG00ENG.png)
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note |
Prior to the wiring harness
inspection, check junction connector C-01, and
repair if necessary.
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Q.
Is the check result normal?
An intermittent
malfunction is suspected (Refer to GROUP 00, How to Use
Troubleshooting/Inspection
Service Points ).
Check the harness
wires for open or short circuit between SRS-ECU connector
C-147
(terminal No.20) and diagnosis connector C-126 (terminal
No.7) and repair if necessary.
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![](../../../img/52/AC313419AT00ENG.png)
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note |
Prior to the wiring harness
inspection, check junction block connectors
C-202 and C-205,
and repair if necessary.
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Q.
Is the check result normal?
An intermittent
malfunction is suspected (Refer to GROUP 00, How to Use
Troubleshooting/Inspection
Service Points ).
Check the harness
wires for open or short circuit between SRS-ECU connector
C-147
(terminal No.20) and ignition switch connector C-307, and
repair if necessary.
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Q.
Does the M.U.T.-III communicate normally with the SRS
system?
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An intermittent
malfunction is suspected (Refer to GROUP 00, How to Use
Troubleshooting/Inspection
Service Points ).
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Replace the SRS-ECU
(Refer to ).
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