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DTC Advanced Diagnostics: U3000-49
DTC U3000-49: Internal Failure of the SRS Unit
NOTE
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Always check "How to troubleshoot the SRS system" and proceed along each "DTC Troubleshooting" procedure. |
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Make sure the 12 volt battery is fully charged. If not, the results of tests may not be accurate. |
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The SRS indicator will turn on when the 12 volt battery voltage becomes below 10 volts. |
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The possible causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes. |
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Confirmation Procedure |
Basic Condition:
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12 volt battery voltage 10 - 16 V |
Operating Condition:
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1. |
Turn the vehicle to the ON mode, and wait 6 seconds. | |
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Duration |
About 6 seconds |
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DTC Type |
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1 drive cycle |
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SRS indicator on | |
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Fail Safe Action |
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Possible Cause |
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Short to ground or short to power between the SRS unit and the front passenger's weight sensor (front inner side) (SWS+ line) |
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Short to another line between the SRS unit and the front passenger's weight sensor (front inner side) (SWS+ line to SWS- line) |
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Short to ground or short to power between the SRS unit and the front passenger's weight sensor (rear inner side) (SWS+ line) |
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Short to another line between the SRS unit and the front passenger's weight sensor (rear inner side) (SWS+ line to SWS- line) |
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SRS unit internal failure |
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Front passenger's weight sensor internal failure | | |
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