Chrysler Crossfire
Anti theft alarm

This is one information page of my collection of what I have repaired on my Crossfire.

Note:
You should not do any repair on your car if you don't have enough experience and knowledge! You use this information at your own risk! Don't blame me if something goes wrong.

Content:

• Main Content Chrysler Crossfire DIY
  1. Anti theft alarm
  2. Control unit
  3. Schematics and error codes
  4. Hood switch
  5. Glow compartment switch
  6. Door switches
  7. Central Locking Pump, examination
  8. Central Locking Pump, incoming cables
  9. Liftgate switch
  10. To be continued

Note:
You have to work with the electric parts. Disconnect the battery, the negative terminal ! When disconnecting the battery the alarm and radio will be reset, be sure to have any codes that's needed!

3, Schematics and error codes:

Now I must go deeper into this problem. There are drawing on the Chrysler Crossfire forum so I can check the wires, but not so easy to find the cables in the car. Maybe I can use the OBD reader and get some code out to check that the switches deliver correct signal to the control unit.

Chrysler Crossfire and Schematics:

At the Chrysler Crossfire forum you can find schematics and a lot of other information that help you to repair your car. Here is a good place to start at: Chrysler Crossfire forum Documantation. You have to register as a member to open these documents. My Crossfire is a non SRT and a coupe, I use the document: "2004 Crossfire (Coupe Only) Service Manual".

The chapter 8Q is about the: Vehicles Theft Security

For my problem maybe the interesting part are at Q-32 "Alarm Trips On Its Own" and the Schematics at Q-44, Q-45.

List of connectors pin number and cable colors:

I have to make a table of all these wires of interest to get a clear view:

Central Locking Pump

* If the resistance is below 10k Ohm from pin to ground, its broken. Check fuse 9, 10 Ampere.

List of alarm triggers:

From chapter 8Q-47 there is a list of what can trigger the alarm.

1. Doors, Hood and Hatch switches
2. Radio is removed (disconnected)
3. Ignition is jumped
4. Glove box is opened
5. Anti theft tow sensor tripped
6. Alarm siren is tripped

In my car I don't think number 2 and 6 are active. I have the siren replaced with a non original one and the radio has for long periods been disconnected and still theft alarm works. Read the information on page 8Q-47, there are more information about details there.

Error codes:

With the OBD reader I can check if there are any error codes stored in the ECU (motor controller). It's clear, no error.

Also check if there are any pending error codes, no problem here either.