Hello,Hope everyone is having a good day,just had a amp put under my seat,And this code came up which is B0090 not sure where that could be coming from.Any help what it means or were this sensor it.Thank you(forgot to add this on thr scanner it says (subfault))
TheKrieg
DTC B0090 Active Switch Voltage Out of Range
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Circuit Description
When you first turn the ignition switch to the RUN position, the inflatable restraint sensing and diagnostic module (SDM) performs tests to diagnose critical malfunctions within itself. The SDM monitors the voltage levels at the passenger frontal SIR enable and disable terminals of the SDM to determine the position of the inflatable restraint IP module switch. The SDM then performs the following continuous diagnostic tests on the deployment loops:
Conditions for Running the DTC
Circuit Description
When you first turn the ignition switch to the RUN position, the inflatable restraint sensing and diagnostic module (SDM) performs tests to diagnose critical malfunctions within itself. The SDM monitors the voltage levels at the passenger frontal SIR enable and disable terminals of the SDM to determine the position of the inflatable restraint IP module switch. The SDM then performs the following continuous diagnostic tests on the deployment loops:
- Deployment loop voltage out of range test
- Deployment loop resistance measurement test
Conditions for Running the DTC
- Ignition 1 voltage is within the normal operating voltage range.
- Passenger frontal deployment loop is not shorted to voltage.
- The voltage detected at passenger frontal SIR enable terminal and passenger frontal SIR disable terminal are less than 1.0 volt when the AIR BAG ON lamp is commanded ON.
- The voltage detected at passenger frontal SIR enable terminal and passenger frontal SIR disable terminal are greater than 4.0 volts when the AIR BAG ON lamp is commanded OFF.
- The voltage detected at passenger frontal SIR enable terminal and passenger frontal SIR disable terminal are greater than 1.0 volt when the AIR BAG OFF lamp is commanded ON.
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