SIR(Airbag) problems
#1
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SIR(Airbag) problems
I have intermittent B0045 and B0040 errors.
This should translate to:
DTC B0040 LF/Driver Side Deployment Loop Resistance Low
DTC B0045 LF Side Deploy Loop Short to Ground/Voltage Out of Range
Anyone that has a clue where to start looking, and how to do it, I guess that sticking a DVM on the airbag connectors is not a good Idea.
Its an 2002/2003 Chevy Venture
This should translate to:
DTC B0040 LF/Driver Side Deployment Loop Resistance Low
DTC B0045 LF Side Deploy Loop Short to Ground/Voltage Out of Range
Anyone that has a clue where to start looking, and how to do it, I guess that sticking a DVM on the airbag connectors is not a good Idea.
Its an 2002/2003 Chevy Venture
Last edited by ebaman; August 9th, 2014 at 6:43 AM.
#2
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Hi !
Code B0040 will set when the SDM detects the LF side impact module deployment loop resistance is less than 1.3 ohm for 500 milliseconds .
DTC B0045 will set when one of the following conditions occur:
... the SDM detects the voltage at LF side impact module high control is greater than 6 volts for 500 milliseconds .
... the SDM detects the voltage at LF side impact module high control is less than 2.4 volts and LF side impact module deployment loop resistance is less than 6 ohm for 500 milliseconds
If DTC B0040 is present, test for a short between the LF side impact module high and LF side impact low control circuits. If DTC B0045 is present, test for a short to ground or voltage in the LF side impact module high and LF side impact module low control circuits.
Most likely you have a problem side seat driver airbag. See wire break or short circuit
Code B0040 will set when the SDM detects the LF side impact module deployment loop resistance is less than 1.3 ohm for 500 milliseconds .
DTC B0045 will set when one of the following conditions occur:
... the SDM detects the voltage at LF side impact module high control is greater than 6 volts for 500 milliseconds .
... the SDM detects the voltage at LF side impact module high control is less than 2.4 volts and LF side impact module deployment loop resistance is less than 6 ohm for 500 milliseconds
If DTC B0040 is present, test for a short between the LF side impact module high and LF side impact low control circuits. If DTC B0045 is present, test for a short to ground or voltage in the LF side impact module high and LF side impact module low control circuits.
Most likely you have a problem side seat driver airbag. See wire break or short circuit
#3
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Yeah, I know all that.
However, need to test the harnes, since I don't have the "Load Test Tool" specified in the workshop manual, question is that if a 2 Ohm resistor will do, as a replacement.
However, need to test the harnes, since I don't have the "Load Test Tool" specified in the workshop manual, question is that if a 2 Ohm resistor will do, as a replacement.
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