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2000 volkswagon jetta 2.0 obd codes p0725,p1780,p1850

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  • 133 Answers

You can use vas 5054a to do the detail diagnosis. It is good at doing troubleshooting for VW vehicles.

Posted on Sep 12, 2013

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SOURCE: 2002 jetta tdi, got code po 725, p1780, p1850.

i had a few of these pop up. The PCM and the ECM had a brain fart. Have the codes cleared and if you have the same luck as me all will be back to normal. That was the fix...

Posted on Dec 28, 2009

czaa
  • 4536 Answers

SOURCE: 2001 2.0 vw jetta p1780 p0322 p0725 p1850

1st did u chec plug wires or dist area-these things wear--r u gitten gas from fuel pump or injector systems--may want to run another scan-computer systems r very complicated n 2-3 opinions dont hurt-zone or discount A does free ones

Posted on Sep 09, 2009

TDISLine
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SOURCE: 2001 beetle tdi for a

Fault codes explanation:
P0725 = Engine speed input circuit; CAN-BUS no communication with Engine Control Module (ECM); Invalid data received from ECM; damaged ECM.
P1850 = Data-Bus Powertrain missing message from ECM.
P1875 = Transmission Automatic Hall Effect sensor power circuit short to battery

I recommend you to access the ECM memory using VAG or similar diagnostic tool. But if you need to check a few things before scanning, I would recommend the following checks in your case:
- check the battery cables (clean and tight contacts)
- check engine ground cable (clean and tight contacts)
- check ECM (Engine Control Module) connectors and ground, the ECM is in plenum chamber under the windshield.
Having checked this wiring (most likely culprit), and made sure that contacts are clean tight, and connectors are fit, if the problem persists, (unlikely), you would need to get the codes using a VW equipment, to get the proper codes.
PS: there are some bulletins refering to ECM software updates on your model, so you should also check these out, if the problem points to ECM replacement eventually.

Posted on May 25, 2011

nicole99wu
  • 1049 Answers

SOURCE: Why wont my 1999 New

this obd2 trouble code table can help you understand the meaning of code.

Posted on Aug 10, 2011

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I have a 2000 volkswagon jetta 2.0 manual transmission what is wrong when air conditioner is running while driving or getting ready to take off the car cuts off?


2000 Volkswagen Jetta Problems - RepairPal

repairpal.com > Problems > Volkswagen > Jetta
Problem with your 2000 Volkswagen Jetta? Search our list of user submitted and RepairPal verified problems and issues.

Jul 28, 2015 | Cars & Trucks

1 Answer

Transmission problems


to many codes try to trick the trans computerif it is isolated unpug and read codes or take the positive wire off and leave it off for a few minutes and try your scanner again and see what it says.

Jan 24, 2013 | Cars & Trucks

1 Answer

P0725


P0725 VOLKSWAGEN - Engine Speed Input Circuit Malfunction

Possible causes- Open or shorted CKP sensor circuit condition
- Poor CKP sensor electrical connection
- Check communication error between the ECM and TCM
- Failed CKP Sensor When is the code detected?The P0725 Codes is triggered when TCM does not receive the engine speed signal from ECM

Jul 09, 2012 | Volkswagen Jetta Cars & Trucks

1 Answer

99 volkwagon jetta codes


Well, if you do not want to spend thousands of dollars in repairs, then I would recommend getting your vehicle PROPERLY diagnosed and repaired before any other things get destroyed by continuing to operate the vehicle with warning lamps lighting up all over your dash TRYING to tell you to get it fixed!
(this should have been fixed when it started out...BEFORE all the other codes showed up.)

DTC P1850 is a serial data bus malfunction. Your computer network is not working properly. You need a scanner that can communicate on the ENTIRE computer network in your vehicle to find out the cause of these problems. Please note that a generic OBD code reader CANNOT perform this function. Volks Wagen is a whole breed of its own and requires special equipment and software to diagnose and repair.

Jan 09, 2012 | Volkswagen Jetta Cars & Trucks

1 Answer

2002 jetta tdi, got code po 725, p1780, p1850. Transmission starts in second gear and will not go in to fourth gear. Any help? Thank you


i had a few of these pop up. The PCM and the ECM had a brain fart. Have the codes cleared and if you have the same luck as me all will be back to normal. That was the fix...

Dec 22, 2009 | 2001 Volkswagen Jetta TDI

2 Answers

2001 2.0 vw jetta p1780 p0322 p0725 p1850 The car stalls out intermintently and will not start for an hour. It was report that it usually happens when the car comes to a stop. The car then run rough and...


1st did u chec plug wires or dist area-these things wear--r u gitten gas from fuel pump or injector systems--may want to run another scan-computer systems r very complicated n 2-3 opinions dont hurt-zone or discount A does free ones

Sep 09, 2009 | 2001 Volkswagen Jetta TDI

1 Answer

Trans in 2000 jetta stuck in thrid


I currently have the same problem, and looking at replacing the transmission wire harness. I'm hoping this will cure my problem. My volkswagon mechanic thinks so anyways.

Jun 15, 2009 | 2000 Volkswagen Jetta TDI

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