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Accident Estimate
Airbag / SRSCritical⚠️ Professional Recommended

B0070

Passenger Knee Deployment Control (Circuit/Performance)

A fault has been detected in the passenger knee airbag deployment circuit.

SeverityCritical
CategoryAirbag / SRS
Est. Repair Cost$200-$500
Code TypeBody
DIY RepairProfessional

⚡ Common Causes

  • ›Damaged knee airbag wiring
  • ›Corroded connector under dash
  • ›Faulty knee airbag module

⚠️ Symptoms

  • ›Airbag warning light on
  • ›Knee airbag inoperative

✅ How to Fix — Step by Step

  • Step 1:Scan SRS system for codes
  • Step 2:Inspect wiring under dash
  • Step 3:Replace faulty knee airbag module

🔧 Diagnostic Tools Required

Using the correct diagnostic tools helps identify the root cause of B0070 before replacing parts unnecessarily. Always confirm the fault using live data and manufacturer-recommended diagnostic procedures.

💡 Pro Tip: Check for prior glovebox or dash removal work that may have disturbed this wiring.

Repair Cost Estimate

Full Repair Estimate
$200-$500
DIY Possible?
PRO
Severity
Critical

Frequently Asked Questions

What does OBD2 code B0070 mean?+
B0070 stands for Passenger Knee Deployment Control (Circuit/Performance). A fault has been detected in the passenger knee airbag deployment circuit.
What causes code B0070?+
Damaged knee airbag wiring; Corroded connector under dash; Faulty knee airbag module
How do I fix code B0070?+
Scan SRS system for codes; Inspect wiring under dash; Replace faulty knee airbag module
How much does it cost to fix B0070?+
Estimated repair cost for B0070 is $200-$500.
Is B0070 DIY-friendly?+
B0070 typically requires professional equipment and a qualified mechanic.

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