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B1BA5 fault code: what it means

B1BA5: Airbag ECU squib count mismatch: wrong SRS-ECU fitted for the car.

Body · Costly if missed

Usual causes, most likely first

  1. incorrect SRS-ECU installed
  2. squib specification mismatch

B1BA5 by make

Mitsubishi

Airbag ECU squib count mismatch: wrong SRS-ECU fitted for the car.

Usual causes: incorrect SRS-ECU installed; squib specification mismatch

Not sure what B1BA5 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.