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About Roland Finston
Expertise
I take questions about domestic Chrysler-product front wheel drive cars and minivans for the years 1982-2000 based upon my experience and shop manuals. I don't have detailed information (e.g. manuals) nor expertise for Jeeps, trucks, SUV's, import vehicles, or for years more recent than 2000. I am available to take a question between 8AM CST and 9PM CST . If I am shown as "maxed out" try again later in the day as I add question opportunities one at a time so as to respond quickly, but I do have other responsibilities as well so may not be available for several hours at times. Try at 7PM CST as I will always be available for one question then. There are answers to hundreds of Chrysler questions at your finger tips: click on "view past answers", one of which may be to your question as well; or put a few key words in the "search for" box, above.

Experience
I have been a do-it-yourself auto hobbyist for 5 decades, and most recently have been concentrating on the various Chrysler Corporation domestic front wheel drive cars and vans. I have shop manuals and wiring diagrams for many models for the years '83-'00, as well as rear wheel drive cars for the early 80's. I enjoy analyzing problems that other Chrysler enthusiasts are having and sharing my information. Organizations belong to Group co-moderator of the Yahoo autos group The Chrysler LeBaron Club

You are here: Experts > Home/Garden > Auto Repair > Chrysler Repair > 94 Caravan Code 15, No speedmeter

Topic: Chrysler Repair

Expert: Roland Finston
Date: 5/8/2008
Subject: 94 Caravan Code 15, No speedmeter

Question
QUESTION: Okay, I'm hoping you might be able to give me some advice on a 94 Caravan 3.0L 3 Speed automatic. My Speedometer would cut in and out periodically during humid days. Now the Speedometer has completely stopped working. My computer gave me a Code 15 No signal from the speed sensor, So I replaced the Speed Sensor , And it still don't work. I used a multi-meter too check the plug connections, and it tests fine too the next plug in the wiring harness... What May i be missing ?

ANSWER: Hi Russell,
You didn't mention which engine is involved but basically you need to make sure that the three wires from the sensor to the powertrain control module are patent. The orange goes to pin 7, the black/light blue goes to pin 4, and white/orange goes to pin 47 and that the first and third are not shorted to ground (the second is a common sensor ground wire). There should be 9V on the orange when the ignition is in the run position.
Roland

---------- FOLLOW-UP ----------

QUESTION: Its a 3.0L V6, When I pin out the wires from the connector, the black/blue wire Beeps too ground, and the Orange, White wire have no resistance too the ground. If I remove the connector, the car won't turn over. I'm about too go set up a light and try pining it out the the PCM

Answer
Yes, that tracing of the wires to the PCM is what is needed and to verify that you have 9V on the orange wire when the ignition switch is in the run position. And I mean to verify them from the plug of the speed sensor. I am not clear if by 'connector' you mean the one at the speed sensor or the light gray multipin behind the battery. That light gray one also carries the voltage for the fuel pump and spark coil so that is the reason the engine won't run if you open up that connector.
Roland

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