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P1606 fault code: what it means

P1606: Collision detected on a Lexus hybrid: the airbag system sent a crash signal and the hybrid system shut down HV power. Check for crash damage or crash-sensor wiring.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

  1. vehicle has been in a crash
  2. airbag ECU or collision signal wiring fault
  3. crash repair not completed or cleared

P1606 by make

Lexus

Collision detected on a Lexus hybrid: the airbag system sent a crash signal and the hybrid system shut down HV power. Check for crash damage or crash-sensor wiring.

Usual causes: vehicle has been in a crash; airbag ECU or collision signal wiring fault; crash repair not completed or cleared

Toyota

Collision detected: the hybrid ECU got a crash signal from the airbag system and shut down the high-voltage system. Check for crash damage or an open crash-sensor circuit.

Usual causes: vehicle has been in a crash and the airbag ECU sent a collision signal; airbag ECU or collision signal wiring fault; previous crash repair not cleared

What the repair usually costs

Not sure what P1606 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.