Toyota 4Runner: Center Airbag Sensor Assembly Malfunction (B1000/31)
DESCRIPTION
The center airbag sensor assembly consists of a deceleration sensor, safing sensor, drive circuit, diagnosis circuit, ignition control, etc.
If the center airbag sensor assembly receives signals from the deceleration sensor, it determines whether or not the SRS should be activated.
DTC B1000/31 is recorded when a malfunction is detected in the center airbag sensor assembly.
|
DTC Code |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
B1000/31 |
Center airbag sensor assembly malfunction. |
Center airbag sensor assembly |
PROCEDURE
|
1. |
CHECK DTC |
(a) Check for DTCs (See page .gif)
).
Result
|
Result |
Proceed to |
|---|---|
|
DTC B1000/31 is output |
A |
|
DTC B1000/31 and other DTCs are output |
B |
NOTICE:
If only DTC B1000/31 is output, do not clear the DTCs, replace the center airbag sensor assembly.
HINT:
If any DTCs other than DTC B1000/31 are also output, troubleshoot those DTCs first.
| A | .gif) |
REPLACE CENTER AIRBAG SENSOR ASSEMBLY |
| B | |
GO TO DIAGNOSTIC TROUBLE CODE CHART |
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DESCRIPTION
The front airbag sensor LH consists of the diagnostic circuit and frontal deceleration
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If the center airbag sensor receives signals from the frontal deceleration sensor,
...
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DESCRIPTION
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ILLUSTRATION
Inspection
INSPECTION
PROCEDURE
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(a) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
...
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