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P0079 fault code: what it means

P0079: Exhaust valve timing solenoid circuit low (bank 1).

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. faulty exhaust CVVT solenoid
  2. wiring short to ground

P0079 by make

Volvo

Exhaust valve timing solenoid circuit low (bank 1).

Usual causes: faulty exhaust CVVT solenoid; wiring short to ground

Not sure what P0079 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.