P1670 fault code: what it means

P1670: Engine computer cooling fan circuit low.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

fan relay or fan motor fault
wiring short

P1670 by make

Land Rover

Engine computer cooling fan circuit low.

Usual causes: fan relay or fan motor fault; wiring short

Volvo

Immobiliser communication fault. The car may crank but not start.

Usual causes: immobiliser module fault; data bus fault; key transponder fault

What the repair usually costs

Radiator cooling fan motor or fan assemblyNZ$350–NZ$1,280 · A$330–A$1,210
Hybrid battery cooling fan and duct clean (Prius / Aqua / Corolla)NZ$100–NZ$240 · A$110–A$260
Hybrid battery cooling fan and duct clean (Camry / RAV4 / Estima / Lexus)NZ$140–NZ$320 · A$150–A$350
Hybrid battery cooling fan motor replaceNZ$210–NZ$650 · A$220–A$660

Not sure what P1670 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.