Question about 2000 Dodge Caravan

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No communication to odb2 - 2000 Dodge Caravan

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Did you have the ignition switch turn to the start position, With out the vehicle running,?

Posted on Dec 05, 2012

  • 3 more comments 
  • timmyton4000
    timmyton4000 Dec 05, 2012

    yes, i did key on

  • timmyton4000
    timmyton4000 Dec 05, 2012

    don't you think , because i install aftermaket radio cause problem

  • John Doe Dec 05, 2012

    We are not mind readers on here ,Why didn,t you have that in your details from the Start that you put a different deck in it, I installed car audio equipment for over 40 years ,End unless you have not got a total clue on what your doing have i seen some one mess up the computer in there vehicle buy installing a aftermarket stereo in it,

  • timmyton4000
    timmyton4000 Dec 05, 2012

    last year i tested ok, but last 2 month i installed my stereo in it , now i test it not communicate with odb2

  • timmyton4000
    timmyton4000 Dec 08, 2012

    someone know this problem? please help me

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Where is the plug in a 1994 toyota camry to hook up the diagnostic code box


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jturcotte_451.jpg

All models except the 1MZ-FE engine is equipped with OBD I till 1995.
  1. Make sure the battery voltage is at least 11 volts.
  2. Make sure the throttle valve is fully closed.
  3. Place the gear shift lever in Neutral. Turn all accessories off.
  4. The engine should be at normal operating temperature.
  5. Using a jumper wire, connect terminals TE1 and E1 of the Data Link Connector 1 (DLC1).
  6. Turn the ignition switch ON , but do not start the engine. Read the diagnostic code by the counting the number of flashes of the malfunction indicator lamp.
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Ssei is it an obd 1 or an obd 2, my engine lite is on but I get no reading from an obd 2 and a conflick of wich 2 terminals to cross for an obd 1


94 and 95 bonneville's have a odb1 system but the plug under the dash for the code reader is for odb2/.
you have to get a code reader that will read odb1 and odb2 with a manufacture special plug to read them.
also the computer in the 94-95 are only used in those 2 years.
new one at most auto parts stores is about $100.00
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if you have lots of codes and it runs good but just turns itself off all the time it's the computer.
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Not apassat 1996 wrong car. for a 99 jetta no


one thing to do when you have no communication is after you visualy check grounds and wiring then do this unplug each engine sensor one at a time each time try to use the scanner when it does you will have found the bad sensor and the problem. otherwise its time to have pcm checked. but when a sensor goes bad sometimes due to grounding out it will not allow car to communicate but unplugging them one at a time and trying to communicate will locate the bad one start with them crank sensor.

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