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Location of OBD II connector on 2003 Volkswagen Passat

I tried to connect my scantool to my '03 VW Passat to clear a DTC but the diagnostic head loosened and went up into the dashboard.How can I get it down & secure it to retrieve DTC's

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SOURCE: 2003 VW Passat OBDII connector

Hi, you have to remove side fuse cover and remove 4 bolts 8mm.Pull foot well cover and secure conector.It may need new housing for OBDII conector.

Posted on Mar 08, 2009

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How can I fix my ESP problem on my passat 2002 , when ESP comes on the car struggle till 2400 rev then it s ok?? Help


Check & replace if necessary the brake pedal switch placed above pedals on the support.
If the problem still occurs you should access the ABS & ESP ECU (Electronic Control Unit) using diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC (Diagnostic Trouble Codes) memored.
Then you will be able to replace bad piece(s) and fix the problem by erasing all DTC stocked inside ABS & ESP ECU, and reset it.


tdisline_516.jpg

The ESP system means the Electronic Stability Program. If the ESP lights on the dashboard permanently the ESP system is faulty.
You should access the ESP Electronic Control Unit (ECU) memory for pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: brake pedal switch, front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ESP ECU, in other words reset the ESP system and turn off the warning lamp on dashboard.
Good Luck!

Oct 26, 2011 | 2002 Volkswagen Passat

1 Answer

I have a 2002 vw passat and my abs light came on and shut off is this goin to b a problem my car has 97,000 mile


The ABS system means the Anti-lock Brake System. If the ABS lights on the dashboard permanently the ABS system is faulty. You must access the ABS Electronic Control Unit (ECU) memory to pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ABS ECU, in other words reset the ABS system and turn off the warning lamp on dashboard.

Aug 19, 2011 | 2002 Volkswagen Passat

1 Answer

Dashboard spiral light vw jetta tdi 2001


Check & replace if necessary the brake pedal switch placed above pedals on the support.
If the problem still occurs you might access the Engine Control Module (ECM) using suitable diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC (Diagnostic Trouble Codes) memored. Then you will be able to replace bad piece(s) and fix the problem by erasing all DTC's stocked inside ECM & reset it.

Jul 05, 2011 | 2001 Volkswagen Jetta TDI

1 Answer

EPS light is on


The ESP system means the Electronic Stability Program. If the ESP lights on the dashboard permanently the ESP system is faulty. You must access the ESP Electronic Control Unit (ECU) memory for pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ESP ECU, in other words reset the ESP system and turn off the warning lamp on dashboard.

May 30, 2011 | 2004 Volkswagen Passat

1 Answer

I have a vw passat TDI130 2003. It runs really well, but engine workshop lights up along with the esp, abs and the glow plug indicators lighting up, most garages are charging just for a diagnosis to the...


Check & replace if necessary the brake pedal switch placed above pedals on the support.
If the problem still occurs you might access the ESP & ABS ECU (Electronic Control Unit) using diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC (Diagnostic Trouble Codes) memored.
Then you will be able to replace bad piece(s) and fix the problem by erasing all DTC stocked inside ESP & ABS ECU & reset it.
I'm convinced that your brake pedal switch is faulty because the glow plug warning light went ON, along with the ESP & ABS. Just replace the brake pedal switch, see if rear stop lamps light when press the brake pedal, and test the car on the road.

May 20, 2011 | 2003 Volkswagen Passat

1 Answer

The esp light went on first and then the glow plug warning sign on my 2005 TDi passat. said workshop assistance, what is the problem


Check & replace if necessary the brake pedal switch placed above pedals on the support.
If the problem still occurs you might access the ABS & ESP ECU (Electronic Control Unit) using diagnostic equipment connected to the data link connector of the car, in order to pull out all DTC (Diagnostic Trouble Codes) memored.
Then you will be able to replace bad piece(s) and fix the problem by erasing all DTC stocked inside ABS ECU & reset it.
tdisline_516.jpg
The ESP system means the Electronic Stability Program. If the ESP lights on the dashboard permanently the ESP system is faulty. You must access the ESP Electronic Control Unit (ECU) memory for pull out all DTC (Diagnostic Trouble Codes), using diagnostic equipment connected to the data link connector of the car. Then you will be full informed about bad pieces (e.g.: brake pedal switch, front right wheel abs sensor interrupted, ...). After bad pieces replacement you will be able to erase all faults memored by ESP ECU, in other words reset the ESP system and turn off the warning lamp on dashboard.
I'm convinced that your brake pedal switch is faulty because the glow plug warning sign went ON after ESP warning light. Just replace the brake pedal switch, see if rear stop lamps light when press the brake pedal, and test the car on the road.
Good Luck!

May 11, 2011 | 2003 Volkswagen Passat

1 Answer

I am getting a p0171 code on my 2005 volkswagon passat what does that mean


P0171 - Fuel Trim, Bank1 System too Lean
VW DTC 16555 (P0171) - Fuel Trim, Bank1 System too Lean
By only pulling battery power from the ECU doesn't clear the codes on OBDII systems.
You must have access to a VAS, VAG-COM, Bosch KTS, ... diagnostic scantool. The ECU (Electronic Control Unit for engine management) is seeing a fuel trim that's much too lean even with the ECU making adjustments. Colud be the MAF (Mass Air Flow) sender out of order, the pre-cat O2 sensor, or a significant vacuum leak. You need to confirm / deny working parts with a 2nd gear pull data-logging measuring blocks 002, + 032 (VAS, VAG-COM).

Dec 09, 2009 | 2005 Volkswagen Passat

1 Answer

2003 VW Passat OBDII connector


Hi, you have to remove side fuse cover and remove 4 bolts 8mm.Pull foot well cover and secure conector.It may need new housing for OBDII conector.

Mar 05, 2009 | 2003 Volkswagen Passat

1 Answer

New battery in 03 VW Passat, engine turns but will not start.


Possible flooding, cold weather can freez open injectors causing them to leak into the cylinders. Press the gass pedal all the way to the floor and crank the engine for no more than 60 seconds. The cylinders will clear themselves allowing proper mix of air/fuel and should start easy. If that does not solve please specify if the engine is 1.8l or 2.8l.

Jan 18, 2009 | 2003 Volkswagen Passat

2 Answers

1997 VW Passat trouble code


Hi ejj509,

Both my 97 Passat and my wife's 99 Passat were throwing the same OBD codes you listed.

Both VW's had the same problem. There is no "quick" solution for the problem. I can tell you what I found, what I had to do and how I repaired both vehicles so they no longer throw this OBD error code.

I removed the black plastivc AIR pump and found that three of the six aluminum rivets which hold the AIR pump impeller housing together had rotted off so the case was leaking air. I went to a hardware store with one of the aluminum rivets I had removed from the AIR pump and bought six brass machine screws and brass nuts. I gouged the aluminum rivets out and replaced them with the brass machine screws.

After I had replaced the AIR pump in the VW, I cleared the codes and ran the diagnostics again.
It still threw the same codes!!!

Next, I removed the plastic top engine cover from the VW engine (VR6) and located the many air solenoids hidden under the cover. I went to a local NAPA shop and purchased an eight foot length of their smallest gauge neoprene gas line (1/8 inch ID).

I carefully removed each piece of rotted VW vacuum line from the air solenoids and replaced each rotted section with lengths of the new neoprene gas line. I had to follow out each of the old vacuum lines and replace them because they were badly deteriorated. This took about five hours to accomplish.

I replaced the plastic engine cover and connected up my cable from my laptop to the VW's computer port, cleared all of the codes and ran a new scan. This time the scan was clear! Woo Hoo! Apparently, the problem was both the leaking AIR pump and faulty, deteriorated (cheap) Volkswagen vacuum lines.

It was well worth the effort. My driveway has now become a bonafied VW repair shoppe.



Nov 07, 2008 | 1997 Volkswagen Passat

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