Ford Mondeo/Focus Reverse Light Switch XS4T-15520-AB 1.8L/2.0L Direct Fit

When Ford ZT or Focus is shifted into Reverse, if the rear light does not illuminate, the instrument cluster reverse prompt fails, or the reversing image does not activate automatically, it usually indicates worn or sticking internal contacts in the reverse light switch, which needs replacement. This switch, when functioning normally, closes the circuit when in reverse, turning on the reverse light and activating rear radar or camera systems to ensure reversing safety. OEM number XS4T-15520-AB, directly matches Ford ZT (1.8L/2.0L) and Focus (1.8L/2.0L) models. Installation: first disconnect the battery negative, remove the old switch, screw it into the corresponding hole in the transmission case, and do not overtighten to avoid damaging the seal.