Chrysler Repair: 00 town&country speedometer, ccd data, trip odometer


Question
QUESTION: i have a 2000 town & country with a 3.8 with a cluster problem,everything stopped working except the tach.after checking the wiring and plugged in the scan tool i figured it was the cluster itself so i replaced it ,that was not the problem,any ideas?

ANSWER: Hi Glenn,
I was wondering if you solved the cluster problem, or if you still needed some help?
Use the 'thank/rate' tab below to get back to me if so. And while you are there if you would consider entering a 'yes' where you see the question about a "nomination of me for expert of the month" I would be most appreciative. Thanks in advance.






Hi Glenn,
Begin by trying a self-diagnostic test and calibration:
With the ignition "off", press and hold trip odometer reset button until "sof" appears in the window, then release the button. Then watch for any numbers to appear in the window, and observe the unit go thru a calibraion routing. Let me know what are the results.
It may be a CCD data bus problem, but begin with this step.
Roland
PS Sorry for the delay as your question was just recently referred to the "pool" where I saw it.


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

QUESTION: hi roland,
still no luck on the 2000 t&c cluster,i performed the diagnostic and that produced no results,nothing came up in yhe window.i only found one wire going into the cluster with power ,blue,should'nt there be two?

ANSWER: Hi Glenn,
Let's try the calibration in a different way:
With the ignition off, press and hold the trip and reset buttons and while holding turn the ignition to the 'on' position. Wait until 'code' appears in the window, then release buttons. See if a 3-digit code then appears in the window. Then it will go thru a series of Chec's and tests. Record all the codes. Then let me know.

Is the tach still working, but no other gauges?
One thing to do is to get a fault code readout, for free at an Autozone parts store, or for about $40 at an independent garage. Get the 4-digit fault code numbers and names, then write back with the results and we'll go from there. We need a clue as to what the data bus thinks is wrong.
There should be voltage on the pink wire all the time, and the red/white pin 11 when the ignition is on. The orange should show variable voltage when the headlamps are 'on' and you move the dimmer. The wires on 9 and 10 should show voltage of  +/- 2.5V with the ignition on.
Roland
PS Use the 'thank/rate' to get back, and please consider a 'nomination' for me to be expert of the month.

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

QUESTION: hi roland,
i'm begining to feel like i know you on a personal level,the only code i could get out or it was a 1495 witch says a evaporitive emmision leak detected,solinoid malfunction.could the clock spring be the problem?

Answer
Hi Glenn,
No the LDP has nothing to do witht he clock spring in the steering column. That circuit is powered by PTC #1 in the row of 10 such sockets under the 4 plugs on the fuse box unter the dash. The Pump itself gets that power and its function is controlled by the PCM under its own control Pins 72 and 77 to pin 1 and 2 respectively at the pump. The power is on pin 3. If the circuits seem continuous then the pump may be bad. It is located above one of the chassis cross members at the firewall or thereabout.
On the cluster, have you checked the voltages I described on the various pins?
Roland
As usual, use the "thank/rate" to get back, and feel free to give me a 'yes' on the 'nomination for expert of the month' question. I am in a close race for that honor.