Ford Repair Questions? Ask a Mechanic for Answers ASAP
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.
Oh sorry, the CJB is the under hood box.
I'll get a diagram of the transceiver in a sec.
This one shows a pretty good picture.
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.
The transceiver ring is about $50. Usually dealer only.
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.
Yeah, that's most likely the problem. Let me know if you need any additional info.
I just wanted to check whether you need any additional info.
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