S-Type battery
 

Hi, Does the alarm drain the battery. This morning car won't start, making clicking noises, and cannot lock doors with remote but alarm light still flashing.

Welcome to the forum marciajune,

A clicking starter solenoid is a good indication of a discharged battery and if the alarm has been activated it will certainly have contributed to this.

I've moved your question from General Tech Help to S-Type forum. This is the place to post questions about your model.

Please follow this link New Member Area - Intro a MUST - Jaguar Forums - Jaguar Enthusiasts Forum to the New Member Area - Intro a MUST forum and post some information about yourself and your vehicle for all members to see. In return you'll get a proper welcome and some useful advice about posting to the forum.

Graham

S-types are particularly sensitive to battery voltage. It sounds like your battery is pretty well discharged. First step is to get the battery charged up and checked out, or replaced if necessary. Even a partially discharged battery can cause all sorts of electrical gremlins in an S-type.