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B0100 and B0103 A valid ID message is not received within 5 seconds of the EFS being powered up. Status message is not received. The SDM has failed twice to reset the EFS. B0102 and B0105 The SDM has received an ID message from the EFS that does not match the ID stored in the When 2 EFS resets are attempted without the correct identification being detected by the B0101 and B0104 Will set when the SDM has received a NOK (Not OK) message from the EFS. Action Taken When the DTC Sets The SDM commands the AIR BAG indicator ON via class 2 serial data. The SDM attempts to reset the EFS. Conditions for Clearing the DTC The condition responsible for setting the DTC no longer exists. Use the scan tool CLEAR DTC command. A history DTC will clear once 255 malfunction-free ignition cycles have occurred. Diagnostic Aids The following can cause an intermittent condition: A short between the EFS signal and voltage circuits High or low resistance in the EFS signal and voltage circuits Inspect the EFS signal and voltage circuits carefully for cutting and/or chafing. Verify the correct EFS is installed in the vehicle. Reference Information Schematic Reference SIR Schematics
2007 Hummer H3 2007 RESTRAINTS Supplemental Inflatable Restraints - H3
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