B2231 Air Bag Passenger Circuit Short to Battery Loop 2

• B2231: This code indicates a short circuit condition in the passenger airbag circuit, specifically loop 2, where it is shorted to the battery voltage.

B2231: Air Bag Passenger Circuit Short to Battery Loop 2

Severity: Moderate

Common Causes

B2231 – Air Bag Passenger Circuit Short to Battery Loop 2

Common causes:

• Faulty passenger airbag module
• Short circuit in the wiring harness
• Poor electrical connection in the airbag system

Common Misdiagnosis

OBD2 Code: B2231

Description: Air Bag Passenger Circuit Short to Battery Loop 2

Common Misdiagnosis: Faulty airbag module or sensor, when the actual issue may be a wiring problem or poor connection.

Common Diagnostic Steps

• Code: B2231
• Description: Air Bag Passenger Circuit Short to Battery Loop 2
• Common Diagnostic Steps:
• Inspect the airbag system wiring for any visible damage or corrosion.
• Check the passenger airbag module connections and ensure they are secure.
• Use a multimeter to test for continuity in the passenger airbag circuit.
• Verify that there is no short to battery voltage in the circuit by checking voltage levels.
• Examine the clock spring for any signs of wear or damage, as it can affect connectivity.
• If applicable, check related fuses and replace if necessary.
• Consult vehicle-specific repair manuals for additional diagnostic procedures specific to your model.
• If all checks are normal, consider replacing the passenger airbag module or control unit as needed.