Land Rover
Engine anti-theft signal fault. The engine may not start.
P1674 fault code: what it means
P1674: Engine anti-theft signal fault. The engine may not start.
Usual causes, most likely first
- immobiliser fault
- wiring fault
P1674 by make
Not sure what P1674 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.