6.8 - Factory Alarms ( ,  )

Jaguar installs a factory alarm system that tees into the harnesses instead of just being spliced on. This is a very good but expensive setup. It is made by Derringer and though the harness ''T’s'' aren't included it is a very good system. Beware of cheap systems. Excessive draw will make short work of your battery! Look for a milliamp draw rating of no more than 60-70. Have them prove it! The parasitic draw tends to sulfate the battery quite a bit quicker than normal. Also make sure that they don't add an extra door lock solenoid to actuate the door locks. Some of these idiot installers actually charge you this added solenoid that isn't required. If they actually had a little electrical knowledge they could figure out how to wire the master solenoid in instead. .

6.8.1 - Reprogramming Factory K19 Alarm ( ,  )

The following are the instructions included with the alarm transmitters for 1990-? cars.

19,000 Code Transmitter Coding Instructions

THIS TRANSMITTER IS PRE-CODED. With the 19,000 code system, the Alarm ECU is programmed rather than the transmitter as with the 1988-89 system.

WHEN BOTH BATTERIES ARE DISCONNECTED (NOTED BELOW) THE ALARM ECU LOSES ALL TRANSMITTER SIGNALS.

Therefore, when programming the Alarm ECU with this transmitter ALL TRANSMITTERS FOR THIS CAR MUST BE AVAILABLE so that all 3 (or 4) can be entered into ECU memory AT THE SAME TIME.

If the owner has not brought in the two original transmitters supplied with the alarm, we recommend postponing programming until all 3 are available at the same time.

1. Ensure the original transmitters are available in addition to this unit.
2. Take note of pre-selected radio stations on AM and FM bands.
3. Disconnect the negative battery cable from the car battery.
4. Unplug the alarm system backup battery.
5. Reconnect both backup battery and car battery.
6. Alarm will chirp once per second and side lights will flash.
7. Press each of the 3 (or 4) remotes once until a total of 5 transmissions are made. Each press of a remote results in the speaker sounding once. Alarm ECU will remember a total of 5 codes, in any combination of 2 - 5 transmitters. If tone is not heard, replace the 12v transmitter battery. If good, replace transmitter with a new warranty unit.
8. When the Alarm ECU has received 5 codes from all 3 (or 4) transmitters, it will function after a door has been opened or closed.
9. Open and close a door.
10. Using each remote in turn, arm and disarm the system to ensure all transmitters are programmed in properly.
11. Re-program AM/FM radio stations.
12. Ensure the remotes are attached to car keys and labeled to avoid mix up