Can anyone help on a Cobra alarm fault Post Posted 17 March 2007, 4:51 PM #711369 (In Topic #85830) Book Settling In Can anyone help on a Cobra alarm fault Lights blink, imobilizer works, but the horn doesn't sound. Fuses, duff horn or a crazy earth gremlin??Book Book.91' Sportline 0 guests and 0 members have just viewed this: None. Forum home Electrics