B0007 - Body Fault Code B0007 - SRS / Krockkuddar (Airbag Förar/Passagerar/Sido/Gardin)
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System
Body (Interior, Lighting, Comfort)
Related Fault Codes
Body Fault Code B0001 - SRS / Krockkuddar (Airbag Förar/Passagerar/Sido/Gardin)
Body Fault Code B0002 - SRS / Krockkuddar (Airbag Förar/Passagerar/Sido/Gardin)
Body Fault Code B0003 - SRS / Krockkuddar (Airbag Förar/Passagerar/Sido/Gardin)
Body Fault Code B0004 - SRS / Krockkuddar (Airbag Förar/Passagerar/Sido/Gardin)
Technical Description
DTC B0007 indicates a circuit fault in the driver knee airbag or auxiliary driver deployment loop. The Restraint Control Module (RCM/ACM) continuously monitors the deployment loop impedance by passing a supervisory micro-current (<30 mA) across the bridge wire. If the measured loop resistance deviates from the strict window (typically 1.8 to 3.2 Ohms), or if a short to battery/ground is detected, the DTC is latched and the SRS warning lamp is illuminated while the affected stage is inhibited.
Possible Causes
1. Dålig kontakt, korrosion eller deformerade terminaler i det gula SRS-kabeldonet under instrumentbrädan/rattstången
2. Aktiverat eller skadat inbyggt kortslutningsbleck (shorting bar) i kontaktdonet
3. Defekt tändpiller (internt avbrott/högresistans i krockkuddsmodulen)
4. Skadat eller klämt ledningskablage mot instrumentpanelens metallbalk
5. Internt fel i SRS-styrdonet (RCM/ACM)
Recommended Solution
Workflow
Mechanic's Tip
Before replacing expensive components, always double-check wiring and connections. 80% of all sensor faults are actually due to corroded contacts or broken wires.
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