How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Jared D Your Own Question
Jared D
Jared D, ASE Certified Technician
Category: Ford
Satisfied Customers: 1768
Experience:  Shop Supervisor at County Fleet
62275574
Type Your Ford Question Here...
Jared D is online now
A new question is answered every 9 seconds

2002 Ford Sport Track, anti-theft system preventing vehicle

Customer Question

2002 Ford Sport Track, anti-theft system preventing vehicle from starting. Have tried resetting the system twice. Have a new factory key, anti-theft light blinking about every second or two even when key is out of the ignition.
Submitted: 1 year ago.
Category: Ford
Expert:  Jared D replied 1 year ago.

Good morning,

Let me see if I can help get this one sorted out. To diagnose this system you will need a multi-meter.

Try these steps to diagnose what sounds like a bad transceiver:

1. Check fuse 14 (5 amp) of the Central Junction Box (CJB) for being blown, missing, or poorly connected and service as necessary.

2. If fuse 14 checks to be ok, access the transceiver located under the ignition switch tumbler forward of the steering wheel and check the circuits of its connection.

A. A Dark Green/White wire supplies ignition-fed voltage from fuse 14.

B. A Black/Light Blue wire supplies the transceiver a ground.

C. The Grey/Orange wire and the White/Light Green wire are communication circuits running between the transceiver and the PCM. With the transceiver plugged in and backprobing, both wires should read close to battery voltage with a Digital Volt-Ohm Meter (DVOM) (they will not light a test light).

3. If the transceiver circuits show to be ok and the connection is in good condition, replace the suspect transceiver.

Customer: replied 1 year ago.
Jared can you stay on the line while I do what you recommended.
Customer: replied 1 year ago.
I have a multi-meter. Is the CJB inside the engine compartment or inside the cabin?
Customer: replied 1 year ago.
Also is the transceiver located under the plastic shrouding covering the steering wheel?
Expert:  Jared D replied 1 year ago.

Oh sorry, the CJB is the under hood box.

I'll get a diagram of the transceiver in a sec.

Customer: replied 1 year ago.
Okay
Expert:  Jared D replied 1 year ago.

This one shows a pretty good picture.

Customer: replied 1 year ago.
Thanks, ***** ***** see a 5 amp fuse in the CJB.
Customer: replied 1 year ago.
Any idea how much a transceiver would run?
Customer: replied 1 year ago.
Picture of the CJB in the vehicle
Expert:  Jared D replied 1 year ago.

I'm sorry I just realized that I marked that the CJB is the under hood, it is the under dash. The under hood is the BJB. Sorry! I keep getting pulled away here at the shop. Normally it's quiet around here in the morning.

Customer: replied 1 year ago.
Not a problem. I'm sure you run into this (guys running back and forth between computer and the car they are working on) all the time.
Expert:  Jared D replied 1 year ago.

The transceiver ring is about $50. Usually dealer only.

Customer: replied 1 year ago.
I found fuse 14 (inside the cabin). It was a 10 amp fuse. And it looked good. I'll put a Ohm meter on it though.
Customer: replied 1 year ago.
Yeah it's good. I'm going to go through all the 5 amp fuses to check for continuity.
Customer: replied 1 year ago.
Here's an all important question, if I replace the transceiver will it respond to the existing keys or do I have to have the transceiver programmed?
Expert:  Jared D replied 1 year ago.

This model shouldn't need to be programmed if you replace the transceiver ring. the programming is stored in the PCM rather than the transceiver.

Customer: replied 1 year ago.
Thanks. I'm taking the ring out now.
Expert:  Jared D replied 1 year ago.

Yeah, that's most likely the problem. Let me know if you need any additional info.

Expert:  Jared D replied 1 year ago.

I just wanted to check whether you need any additional info.

If you no longer have any questions please don't forget to rate.

Expert:  Jared D replied 1 year ago.

Please don't forget to rate. We don't get paid if we don't get a positive rating.