Home Technical Discussions Volkswagen Passat: 1998-2005 (B5)

Volkswagen Passat: 1998-2005 (B5) weird problems on Passat 2001


Permlink Replies: 11 - Pages: 1
Last Post: Mar 11, 2014 3:45 AM Last Post By: valcar1977
mario.stefan

Posts: 25
Registered: 03/19/04
weird problems on Passat 2001
Posted: May 25, 2004 10:12 AM
  Click to reply to this thread Reply
Hello,
A good friend of mine has a Passat 1,8 T 20V made in 2001.The serial number is WVWAC23B21E005581, SFI engine, 150 HP/ 5700 rpm.The problem is that the "check engine" doesn't turn off and after a half an hour the ABS light turn on and also the ECT light. When ECT turn on ,the engine start to buck and sometimes it stalls.Also the computer demands "emission workshop".We went to VW dealer ,checked the engine and everything seems to be in a good shape.Now those problems are the same again. I'll appreciate if you guys can give me an advice.Thanks a lot.

Mario.
JoeBean

Posts: 4,697
Registered: 02/14/02
Re: weird problems on Passat 2001
Posted: May 25, 2004 11:28 AM   in response to: mario.stefan in response to: mario.stefan
  Click to reply to this thread Reply
The first step is to have the diagnostic trouble codes checked. Then, post the code #s and we can probably point you in the right direction. Ideally, the codes would be checked with a VW scan tool. This will provide the most useful info. Barring that, though, a generic OBD-II scanner should give some codes that will give at least some idea of what's going on.

Terry
mario.stefan

Posts: 25
Registered: 03/19/04
Re: weird problems on Passat 2001
Posted: May 25, 2004 11:45 AM   in response to: mario.stefan in response to: mario.stefan
  Click to reply to this thread Reply
hello,
First time at the dealer they found something like that:
1. P1517 - main relay F 271 electrical problem in circuit;
2. P1602 - power supply B+ terminal 30 voltage too low;
3. P1531 - Camshaft adjustment.

They sloved the camshaft adjustment ( it was an unplugged electrical conector) but nothing about the first two issues.
Some ideas???
Thanks again

Mario
mario.stefan

Posts: 25
Registered: 03/19/04
Re: weird problems on Passat 2001
Posted: May 25, 2004 11:50 AM   in response to: mario.stefan in response to: mario.stefan
  Click to reply to this thread Reply
Here are the codes.I just saw you message.Thank you very much.

Mario
JoeBean

Posts: 4,697
Registered: 02/14/02
Re: weird problems on Passat 2001
Posted: May 25, 2004 1:46 PM   in response to: mario.stefan in response to: mario.stefan
  Click to reply to this thread Reply
Attachment 1.gif (20.1 KB)
Attachment 2.gif (55.9 KB)
Here's some info:
P1517 - Motronic ECM Voltage Supply Relay, J271, malfunction in electrical circuit.
Repair info: Check the relay
P1602 - Voltage supply terminal 30 voltage too low
Repair info: Check voltage supply for control module.
P1531 - Camshaft adjustment open circuit
Repair info: Check valve for camshaft adjustment.

All three are probably caused by the same thing - the relay. This relay is located in the intake plenum chamber, left side, to the right of the ECM. It should be stamped 428 or 429, or possibly 30 if it's an early vehicle. See the attached pics taken from the Official Factory Repair Manual. It supplies power to the ECM and also to the camshaft adjustment valve.

The relay receives power to pins 2 and 9 via the same connection from the battery. Check both these pins for voltage at all times. You should have approx. battery voltage. Pin 4 gets grounded via the ECM pin 21. You can check it for continuity to that pin if you suspect a problem there. And pin 6 is the power supply side of the relay. There are 2 fuses from this line. There is a safety fuse between it and the camshaft adjustment valve. And there's another fuse, S229, between it and the ECM. I'd doubt both are bad. But just to be sure you could check them. Or, remove the relay and check for voltage between pins 9 and 4 when you turn the ignition on. I believe you should have voltage then as the ECM should ground pin 4 when the ignition is turned on. If you do, turn the ignition off and put the relay back in. Put your hand on the relay and have someone turn the ignition on. If it's working you should feel the relay click on. If you don't feel it click on it's bad. You may be able to repair it by opening it up - it's probably just a solder joint gone bad.

Terry
mario.stefan

Posts: 25
Registered: 03/19/04
Re: weird problems on Passat 2001
Posted: May 26, 2004 9:24 AM   in response to: JoeBean in response to: JoeBean
  Click to reply to this thread Reply
Thank you indeed Terry.I'm gonna make those checkings.I'll tell you what it was.

Mario.
mario.stefan

Posts: 25
Registered: 03/19/04
Re: weird problems on Passat 2001
Posted: Jun 4, 2004 11:56 PM   in response to: mario.stefan in response to: mario.stefan
  Click to reply to this thread Reply
hello
Case solved.That relay ( 30) was the problem. As you said ,I found a bad solder joint in the relay.I replaced it with a new one and now the car seems to run very good. A VW mechanic told me that the bad relay can affect the trottle body.I don't now if it's true , may be you can tell me if it's right. Will see what's gonna be.Now it's OK , but .......

Thanks indeed Terry for all advices and especially for those two photos with the relay emplacement.

Mario.
JoeBean

Posts: 4,697
Registered: 02/14/02
Re: weird problems on Passat 2001
Posted: Jun 5, 2004 3:36 PM   in response to: mario.stefan in response to: mario.stefan
  Click to reply to this thread Reply
A failing relay can cause all sorts of electrical spikes and problems, so what that mechanic said is not beyond the realm of possibility. I haven't heard of it being a big problem, though. But asking around at www.clubb5.com might give you more of an indication of what other owners have experienced.

Terry

mario.stefan

Posts: 25
Registered: 03/19/04
Re: weird problems on Passat 2001
Posted: Jun 6, 2004 2:42 PM   in response to: JoeBean in response to: JoeBean
  Click to reply to this thread Reply
Thanks Terry . As I said , now , the car run well ( no alarm signals on the red matrix)but my friend is not content and he's complaining about some kind of engine vibrations. What can I say. I don't know what to do or what to check.He told me that before this relay replacement, the engine used to run more smoothly( except those signals on the red matrix). Whatever , we'll see ...

Mario.
JoeBean

Posts: 4,697
Registered: 02/14/02
Re: weird problems on Passat 2001
Posted: Jun 6, 2004 4:28 PM   in response to: mario.stefan in response to: mario.stefan
  Click to reply to this thread Reply
He should start by having the codes checked/cleared and a throttle body adaptation procedure performed. This is performed with a VW scan tool and should be done as one procedure. If the engine really is running poorly it's likely because of problems with the settings stored in the ECM.

Of course, engine vibration may be indicative of another problem, like failing motor mounts.
Terry
mario.stefan

Posts: 25
Registered: 03/19/04
Re: weird problems on Passat 2001
Posted: Jun 10, 2004 5:58 PM   in response to: JoeBean in response to: JoeBean
  Click to reply to this thread Reply
thank you Terry.I didn't talk to my friend in the last days to know how the engine runs. May be the next week I'm gonna talk to him to see what's new. Will see.

Thanks again for the informations.

Mario.
valcar1977

Posts: 2
Registered: 03/11/14
Re: weird problems on Passat 2001
Posted: Mar 11, 2014 3:45 AM   in response to: JoeBean in response to: JoeBean
  Click to reply to this thread Reply
Hello,
I have a 2001 VW Passat 2.8 V6 GLX. This is my first Volkswagen I purchased it February 2013. a I have learned so much about this car just from the internet and these forums. I am a single mother and a student so my finances are limited. I bought this car and I shouldn't of, it had problems but the autocheck came out fine. To make a long story short it hasn't been running for maybe a month for as long as I have owned it. I had to rewire the fuse box and I know I have a short. I also rebuilt the mechatronics unit which included replacing the solenoids and changed out the valve body harness My question is about the relay that is supposed to be next to the ECU. Relay 428/429 or 30. I do not have the relay and I think it wasn't wired for it or something. I purchased the software VCDS lite and here are the codes.

VCDS-Lite Version: Release 1.2
Monday, 24 February 2014, 17:41:28:41653

Chassis Type: 3B - VW Passat B5
Scan: 01,02,03,08,15,16,17,19,35,36,37,46,47,55,56,57,58,75,76,77


Address 01: Engine Labels: Redir Fail!
Controller: 3B0 907 551 BS
Component: 2.8L V6/5V G 0001
Coding: 07551
Shop #: WSC 00028
VCID: 759DC0625CD9
WVWRH63B21P208129 VWZ7Z0A3497870
4 Faults Found:
17536 - Fuel Trim; Bank 1 (Mult): System too Lean
P1128 - 35-10 - - - Intermittent
17538 - Fuel Trim; Bank 2 (Mult): System too Lean
P1130 - 35-10 - - - Intermittent
18032 - MIL Request Signal Active (Check TCM for errors too!)
P1624 - 35-00 - -
18010 - Power Supply Terminal 30: Voltage too Low
P1602 - 35-10 - - - Intermittent
Readiness: 0010 0101


Address 02: Auto Trans Labels: 01V-927-156.LBL
Controller: 8D0 927 156 AS
Component: AG5 01V 2.8l5V USA 3132
Coding: 00104
Shop #: WSC 00028
VCID: 7E8FDF4E69EF
3 Faults Found:
17114 - Gear Ratio Monitoring: Incorrect Gear Ratio
P0730 - 35-10 - - - Intermittent
17118 - Gear 4: Incorrect Ratio
P0734 - 35-00 - -
17119 - Gear 5: Incorrect Ratio
P0735 - 35-10 - - - Intermittent


Address 03: ABS Brakes Labels: 8E0-614-111-ASR.LBL
Controller: 3B0 614 111
Component: ABS/ASR 5.3 FRONT D00
Coding: 00031
Shop #: WSC 00028
VCID: D3D9DEFA32ED
No fault code found.


Address 08: Auto HVAC Labels: 3Bx-907-044.LBL
Controller: 3B1 907 044 J
Component: CLIMATRONIC B5GP 0002
Coding: 17200
Shop #: WSC 00028
VCID: 2823D916DBEB
7 Faults Found:
00532 - Supply Voltage B+
07-10 - Signal too Low - Intermittent
00792 - A/C Pressure Switch (F129)
35-00 - -
00603 - Footwell/defroster Flap Positioning Motor (V85)
37-10 - Faulty - Intermittent
01271 - Positioning Motor for Temperature Flap (V68)
37-10 - Faulty - Intermittent
01272 - Positioning Motor for Central Flap (V70)
37-10 - Faulty - Intermittent
01274 - Air Flow Flap Positioning Motor (V71)
37-10 - Faulty - Intermittent
01299 - Diagnostic Interface for Data Bus (J533)
79-00 - Please Check Fault Codes


Address 15: Airbags Labels: 6Q0-909-605-VW5.LBL
Controller: 6Q0 909 605 C
Component: 09 AIRBAG VW6 04 0004
Coding: 12345
Shop #: WSC 00028
VCID: 37010A6A0655
1 Fault Found:
00532 - Supply Voltage B+
07-10 - Signal too Low - Intermittent


Address 16: Steering wheel Labels: 1J0-907-487-A.LBL
Controller: 1J0 907 487 B
Component: Lenkradelektronik 0002
Coding: 00008
Shop #: WSC 00028
VCID: 30133176E33B
No fault code found.


Address 17: Instruments Labels: 3B0-920-xx5-17.LBL
Controller: 3B0 920 925 B
Component: KOMBI+WEGFAHRSP VDO V13
Coding: 07235
Shop #: WSC 00050
VCID: 2237CB3EBDD7
WVWRH63B21P208129 VWZ7Z0A3497870
3 Faults Found:
00779 - Outside Air Temp Sensor (G17)
30-00 - Open or Short to Plus
01335 - Drivers Seat/Mirror Position Control Module (J543)
49-10 - No Communications - Intermittent
01330 - Central Control Module for Central Convenience (J393)
49-10 - No Communications - Intermittent


Address 19: CAN Gateway Labels: 6N0-909-901-19.LBL
Controller: 6N0 909 901
Component: Gateway K<->CAN 0001
Coding: 00006
Shop #: WSC 00028
VCID: F0937176A3BB
3 Faults Found:
01335 - Drivers Seat/Mirror Position Control Module (J543)
49-10 - No Communications - Intermittent
01330 - Central Control Module for Central Convenience (J393)
49-10 - No Communications - Intermittent
01331 - Door Control Module; Driver Side (J386)
49-00 - No Communications


Address 36: Seat Mem. Drvr Labels: 3B1-959-760.LBL
Controller: 3B1 959 760 D
Component: Sitzverstellung 0101
Coding: 0000000
Shop #: WSC 00000
VCID: 2E2F2F0EF90F
6 Faults Found:
01008 - Note; Emergency OFF Switch is Active!
000 - -
00668 - Supply Voltage Terminal 30
002 - Lower Limit Exceeded - Intermittent
01330 - Central Control Module for Central Convenience (J393)
01331 - Door Control Module; Driver Side (J386)
004 - No Signal/Communication
01341 - Control Module in Instrument Panel On Comfort CAN (J285)
004 - No Signal/Communication - Intermittent
01336 - Data Bus for Comfort System
004 - No Signal/Communication - Intermittent


Address 46: Central Conv. Labels: 1C0-959-799.LBL
Controller: 1C0 959 799 C
Component: 08 Komfortgerát HLO 0003
Coding: 00258
Shop #: WSC 05311
VCID: 37010A6A0655
11 Faults Found:
01330 - Central Control Module for Central Convenience (J393)
53-10 - Supply Voltage Too Low - Intermittent
01334 - Door Control Module; Rear Right (J398)
49-10 - No Communications - Intermittent
01333 - Door Control Module; Rear Left (J388)
49-10 - No Communications - Intermittent
01332 - Door Control Module; Passenger Side (J387)
49-10 - No Communications - Intermittent
01331 - Door Control Module; Driver Side (J386)
49-00 - No Communications
01299 - Diagnostic Interface for Data Bus (J533)
49-10 - No Communications - Intermittent
01179 - Incorrect Key Programming
35-00 - -
01332 - Door Control Module; Passenger Side (J387)
53-10 - Supply Voltage Too Low - Intermittent
01359 - Internal Central Locking Switch; Passenger Side (E198)
27-10 - Implausible Signal - Intermittent
01333 - Door Control Module; Rear Left (J388)
53-10 - Supply Voltage Too Low - Intermittent
01334 - Door Control Module; Rear Right (J398)
53-10 - Supply Voltage Too Low - Intermittent

End

I do not have some of trim of the car connected like the seat controls and the drivers trim is off at the moment because I am slowing fixing the car. I know that I have a short. Can you tell me where the relay would be if it is not next to the ECU? I also downloaded a really neat wiring diagram that is in color but its in Russian. Is one available in English? Your help with anything you might think it is or suggestions will be greatly appreciated. I really am interested in possibly going to school and specialize on Volkswagens. I have done as much as I can on my own without any help the car does start but it does go into limp mode.
Thank you,
Valarie Carrillo

Point your RSS reader here for a feed of the latest messages in all forums

Popular Discussions:
No popular dicussions.