Vw Throttle Body Wiring Diagram
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p0122 TPS Help reading wire diagram for fault finding
- Thread starter Samoht
- Start date
- #1
Hello friends, I've got a p0122 (TPS G69) problem and I want to check wire connections with a DMM. I have been reading around and tried to learn a little about fault finding with a DMM. I'm not experienced with the tool and I don't want to mess up my electric system.
From vcds:
1 Fault Found:
000290 - Throttle Position Sensor (G69)
P0122 - 000 - Signal too Low - Intermittent - MIL ON
Freeze Frame:
Fault Status: 10100000
Fault Priority: 2
Fault Frequency: 12
Reset counter: 255
Mileage: 129222 km
Time Indication: 0
Date: 2015.02.14
Time: 13:47:57
Freeze Frame:
RPM: 1955 /min
Speed: 32.0 km/h
Voltage: 14.06 V
Lambda: 21.3 %
Lambda: -6.3 %
Bin. Bits: 00000000
Voltage: 0.000 V
I have the wire diagram (in german), but I'm not sure which is ground, positive etc.
The only reading I've done (ignition on) is connecting black probe to negative battery terminal and red probe to the 5 wire terminal pins. This reads with the DMM setting dc volts (20), from wire no.:
1:5.01v
2:0.02v
3:0.02v
4:0.02v
5:4.40v
I can't make too much of this, but in my understanding from looking at the diagram, wire 3 is ground, which is marked with (220) (Legend explains ground connection in motor wiring harness). Should I put black probe on this terminal and red to wire 2 (which is connected to the ECU j623) and read if there is a problem with correct voltage? Since wire 2 is G69 and the vcds error reads "signal too low - intermittent", this is what I should focus on first? What other wires should I check, and how, are they negative, positive? What is the "wrong" way to probe? positive from battery to positive wire?
I'm set on doing this, but I want to do it right. I have had issues with Egr and valve 4 years ago which have both been replaced by me. Yesterday I cleaned the terminal housing and wires with electronic cleaner, it did have some oil residue from the last time egr failed (electronic housing filled with oil). Haven't driven the car too much after this last MIL came on, but it seems that the MIL comes when accelerating harder. Driving soft and low rpm the MIL disappears after a while, before coming back.
I want to check the wires before I go on removing the valve and egr electronics, and the ECU to read resistance and continuity (which is a bit of a hassle in comparison).
Hope someone has some experience with this 
- #2
VAG current flow diagrams are a mystery to most people but I love them and have decades of experience with them but I need to be at my desk with ELSA open (it is annoying that VW is only in German on 6 but my technical German if fairly good) to be able to follow you as it is awkward on an iPad. Two points though, if you had a problem with the feed you would have a G247 fault and if it was the earth and whatever else is on line D220 and you would have a a G247 and line D101 issue if it was the earth. I would say you have a J338 problem rather than a wiring fault as these are very rare, also testing the violet/yellow from T5q/2 back to T60/41 means removing the ECU chastity belt which is intentionally difficult. It would help if we knew more about what the vehicle is but to me it sounds like a CAYC 1.6 CRTDI.
- #3
Manufacturer: VW, Date(s) Used: 10/2008-11/2009, Model: Golf/Variant/4Motion/R32, Engine Code: CBAB, 103Kw, 140PS, 2.0 Ltr, 4 Cyls, Remarks: Turbocharged Direct Injection Common Rail (TDI-CR) 16v Timing belt Timing gears
VAG Error Code: 16506/15338/2670/000290
EOBD II Error Code: P0122
Fault Location:
Throttle Position Sensor (G69) - Signal too Low/Short Circuit to Earth
Possible Cause:
Malfunction Indicator Lamp (MIL)(K83) active.
Fuse(s).
Signal wire short to earth.
Supply wire defective.
Throttle position sensor (G69).
Check for water ingress.
Possible Solutions:
Check/Replace all faulty Wiring/Connector(s).
Read Measuring Value Blocks (MVB).
Signal voltage < 0.20 V.
When is the code detected?:
An excessively low voltage from the Throttle Position (TPP) Sensor is sent to Engine Control Module (ECM).
Description:
The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the Engine Control Module (ECM).
Idle position of the throttle valve is determined by the Engine Control Module (ECM) receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
2012 Vw Golf Throttle Codes P0122, P0222, P0221
Google this YouTube link https://www.youtube.com/watch?v=MusagQ1W0mI
There is a bug in this forum as it doesn't show YouTube video links only a black square which has been reported many times.
As taken from my new EOBD II Fault Codes Software
- #4
VAG current flow diagrams are a mystery to most people but I love them and have decades of experience with them but I need to be at my desk with ELSA open (it is annoying that VW is only in German on 6 but my technical German if fairly good) to be able to follow you as it is awkward on an iPad. Two points though, if you had a problem with the feed you would have a G247 fault and if it was the earth and whatever else is on line D220 and you would have a a G247 and line D101 issue if it was the earth. I would say you have a J338 problem rather than a wiring fault as these are very rare, also testing the violet/yellow from T5q/2 back to T60/41 means removing the ECU chastity belt which is intentionally difficult. It would help if we knew more about what the vehicle is but to me it sounds like a CAYC 1.6 CRTDI.
Keithuk is correct, it's a cbab aka kebab. The point about the feed to G247 seems valid, I'm thinking I should start to disassemble the j338 and egr and check inside electronic housing for obvious signs of fault. It wouldn't be a surprise if they are oily, just like last time. I've also been reading that this can have something to do with the manifold gasket seal.. Which I'm also hoping not to remove. I do have the entire diagram, but as I said I'm not educated in this area. I can translate the German fine, but I don't know what are negative and positive and where to probe. I'll upload it here if anyone is interested.
View attachment 7629 part 1.
View attachment 7630 part 2.
Apart from removing the units for fault checking, any other ideas come to mind now that you know my engine?
HTML:
[QUOTE="Keithuk, post: 129544, member: 4926"]Manufacturer: VW, Date(s) Used: 10/2008-11/2009, Model: Golf/Variant/4Motion/R32, Engine Code: CBAB, 103Kw, 140PS, 2.0 Ltr, 4 Cyls, Remarks: Turbocharged Direct Injection Common Rail (TDI-CR) 16v Timing belt Timing gears VAG Error Code: 16506/15338/2670/000290 EOBD II Error Code: P0122 Fault Location: Throttle Position Sensor (G69) - Signal too Low/Short Circuit to Earth Possible Cause: Malfunction Indicator Lamp (MIL)(K83) active. Fuse(s). Signal wire short to earth. Supply wire defective. Throttle position sensor (G69). Check for water ingress. Possible Solutions: Check/Replace all faulty Wiring/Connector(s). Read Measuring Value Blocks (MVB). Signal voltage < 0.20 V. When is the code detected?: An excessively low voltage from the Throttle Position (TPP) Sensor is sent to Engine Control Module (ECM). Description: The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the Engine Control Module (ECM). Idle position of the throttle valve is determined by the Engine Control Module (ECM) receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control. 2012 Vw Golf Throttle Codes P0122, P0222, P0221 Google this YouTube link https://www.youtube.com/watch?v=MusagQ1W0mI There is a bug in this forum as it doesn't show YouTube video links only a black square which has been reported many times. As taken from my new EOBD II Fault Codes Software[/QUOTE] Thanks Keithuk, I've actually seen the video (among many others), but I watched it again. The video link is working fine btw. Too bad the conclusion was to replace the entire unit, would've liked to see what the real issue was. He did however not search his Mitchell software for the right fault code, instead of p0122 he typed p0121. Wonder if it would matter though as the other codes gave the same conclusion.
I'm gonna remove and open both j338 and egr and see what I'll find. Thanks guys, for your quick replies
- #5
Right, you have added you cars spec to your signature now, saves me guessing. With it being a 2009 Golf it could be a 5 (1K) or 6 (5K) but it having the CBAB engine it shows it is a Golf 6. Cleaning the EGR valve is a messy waste of time usually, I would just fit the revised unit, part number 03L 131 501 K.
- #6
I automatically assumed my car make would show as it was typed in when registering. It is indeed a mark 6, they made them from late 2008 in EU. I wasn't thinking about the carb cleaning, but checking for oil inside the electronic housing and also if some soldered wires have fallen off. I saw a video where one of the pins had a week solder point and wasn't touching. I'm not going to buy a new unit before checking "all" possibility's as the unit itself is typically fine but the parts inside can fail. I know the tooth wheel that opens the shudder valve is made of simple plastic and my previous one did indeed have some of its teeth broken.
Are there any other ideas you have regarding the low signal from the G69 sensor?
- #7
The G69 is inside the J338 EGR valve and yes the potentiometer can get contaminated with oil which naturally passes through the charge air system as a vapour and condenses inside the motor housing.
- #8
**UPDATE**
I haven't been able to do anything with the car the past week because we had to use it. Have only driven in city limits, no highway/freeway speeds.
I installed a new battery and ran some more vcds testing yesterday. New codes have now come up:
008448 - Throttle Actuator Control Circuit
P2100 - 000 - Open Circuit - Intermittent
008213 - Intake Manifold Flap Position Sensor (Bank 1)
P2015 - 000 - Implausible Signal - Intermittent
008198 - Intake Manifold Flap; Bank 1
P2006 - 000 - Stuck Closed - Intermittent
008196 - Intake Manifold Flap; Bank 1
P2004 - 000 - Stuck Open
Since my first error code was p0122, I'm wondering if this is related. I know the p2015 code can be fixed with a dieselgeek bracket, so I'm considering ordering it.
In the meantime, Crasher if you are still here should I check more for faulty wires with a DMM - and can you give me some tips where I should check? Could this be a fault with wires in ECM do you advise open it and check for corrosion etc?
I recorded adaption in vcds, I don't know if these values are correct if anyone could elaborate:
https://youtu.be/Wrky6jr-tNY
https://youtu.be/rOitplz6bE4
Full vcds scan log:
Code:
Saturday,03,October,2020,21:28:59:60826 VCDS -- Windows Based VAG/VAS Emulator Running on Windows 8.1 x64 VCDS Version: 19.6.1.0 Data version: 20190529 DS308.0 [URL="http://www.Ross-Tech.com"]www.Ross-Tech.com[/URL] VIN: xx License Plate: xx Mileage: 129870km-80697mi Repair Order: Chassis Type: 1K-VW36 (1K0) Scan: 01 03 08 09 10 15 16 17 19 25 42 44 46 52 56 62 72 VIN: WVWZZZ1KZ9W403730 Mileage: 129870km-80697miles 01-Engine -- Status: Malfunction 0010 03-ABS Brakes -- Status: OK 0000 04-Steering Angle -- Status: OK 0000 08-Auto HVAC -- Status: OK 0000 09-Cent. Elect. -- Status: Malfunction 0010 10-Park/Steer Assist -- Status: Malfunction 0010 15-Airbags -- Status: OK 0000 16-Steering wheel -- Status: OK 0000 17-Instruments -- Status: OK 0000 19-CAN Gateway -- Status: OK 0000 25-Immobilizer -- Status: OK 0000 42-Door Elect, Driver -- Status: OK 0000 44-Steering Assist -- Status: OK 0000 46-Central Conv. -- Status: OK 0000 52-Door Elect, Pass. -- Status: OK 0000 56-Radio -- Status: Malfunction 0010 62-Door, Rear Left -- Status: OK 0000 72-Door, Rear Right -- Status: OK 0000 ------------------------------------------------------------------------------- Address 01: Engine (CBA) Labels: 03L-906-022-CBA.clb Part No SW: 03L 906 022 AG HW: 03L 906 022 G Component: R4 2,0L EDC G000SG 6169 Revision: 13H01--- Serial number: Coding: 0000072 Shop #: WSC 21458 000 1048576 VCID: 6A6920F8FDFA1BA7CF-803E 5 Faults Found: 000290 - Throttle Position Sensor (G69) P0122 - 000 - Signal too Low - MIL ON Freeze Frame: Fault Status: 11100000 Fault Priority: 2 Fault Frequency: 63 Reset counter: 255 Mileage: 129222 km Time Indication: 0 Date: 2015.02.24 Time: 13:47:57 Freeze Frame: RPM: 1955 /min Speed: 32.0 km/h Voltage: 14.06 V Lambda: 21.3 % Lambda: -6.3 % Bin. Bits: 00000000 Voltage: 0.000 V 008448 - Throttle Actuator Control Circuit P2100 - 000 - Open Circuit - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 3 Reset counter: 255 Mileage: 129525 km Time Indication: 0 Freeze Frame: RPM: 0 /min Speed: 0.0 km/h Load: 0.0 % Load: 100.0 % Lambda: 99.4 % Mass Air / Rev.: 0.0 mg/str Temperature: 32.4°C 008213 - Intake Manifold Flap Position Sensor (Bank 1) P2015 - 000 - Implausible Signal - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 1 Reset counter: 255 Mileage: 129876 km Time Indication: 0 Date: 2015.02.24 Time: 01:27:45 Freeze Frame: RPM: 0 /min Speed: 0.0 km/h Load: 0.0 % Lambda: 7.9 % Lambda: 0.0 % Voltage: 0.380 V Bin. Bits: 00000001 008198 - Intake Manifold Flap; Bank 1 P2006 - 000 - Stuck Closed - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 1 Reset counter: 255 Mileage: 129876 km Time Indication: 0 Date: 2015.02.24 Time: 01:27:54 Freeze Frame: RPM: 0 /min Speed: 0.0 km/h Load: 0.0 % Load: 100.0 % Lambda: 6.3 % Mass Air / Rev.: 0.0 mg/str Temperature: 66.6°C 008196 - Intake Manifold Flap; Bank 1 P2004 - 000 - Stuck Open Freeze Frame: Fault Status: 01100000 Fault Priority: 2 Fault Frequency: 1 Reset counter: 255 Mileage: 129876 km Time Indication: 0 Date: 2015.02.24 Time: 01:27:55 Freeze Frame: RPM: 0 /min Speed: 0.0 km/h Load: 0.0 % Load: 100.0 % Lambda: 89.2 % Mass Air / Rev.: 0.0 mg/str Temperature: 66.6°C Readiness: 1 1 0 0 0 ------------------------------------------------------------------------------- Address 03: ABS Brakes (-----) Labels:. 1K0-907-379-60EC1F.clb Part No SW: 1K0 907 379 AD HW: 1K0 907 379 AD Component: ESP MK60EC1 H35 0106 Revision: 00H35001 Coding: 143B400D092200FD281202E7901900423400 Shop #: WSC 01357 011 00200 VCID: 747F14DA45A4277D3F-8020 No fault code found. ------------------------------------------------------------------------------- Address 08: Auto HVAC (J255) Labels:| 5K0-907-044.clb Part No SW: 5K0 907 044 AK HW: 5K0 907 044 AK Component: Climatronic 130 0303 Revision: 00002001 Coding: 0000000000 Shop #: WSC 00000 000 00000 ASAM Dataset: EV_Climatronic A01001 ROD: EV_ClimaAutoBasis_VW36.rod VCID: 747F14DA4DA4277D3F-8020 No fault code found. ------------------------------------------------------------------------------- Address 09: Cent. Elect. Cannot be reached Unable to communicate with address 09. Are you sure the doors are unlocked? ------------------------------------------------------------------------------- Address 10: Park/Steer Assist (J446) Labels:. 3C8-919-475.clb Part No SW: 5K0 919 475 HW: 5K0 919 475 Component: PARKHILFE 8K H07 0002 Revision: -------- Serial number: 60630821007341 Coding: 100001 Shop #: WSC 01357 011 00200 VCID: 737E12E541A92D6607-8026 1 Fault Found: 16347 - Control Module - EEPROM Error 014 - Defective Freeze Frame: Fault Status: 01101110 Fault Priority: 3 Fault Frequency: 1 Reset counter: 0 Mileage: 0 km Time Indication: 0 Freeze Frame: Temperature: 9.0°C ------------------------------------------------------------------------------- Address 15: Airbags (J234) Labels:| 5K0-959-655.clb Part No SW: 5K0 959 655 HW: 5K0 959 655 Component: AirbagVW10 020 0507 Serial number: 003C2D03KD7U Coding: 00003135 Shop #: WSC 01357 011 00200 ASAM Dataset: EV_AirbaVW10SMEVW360 A01003 ROD: EV_AirbaVW10SMEVW360.rod VCID: 777A0AD179B5550A27-8022 Crash sensor for side airbag: driver side: Subsystem 1 - Part No SW: 5K0 959 354 HW: 5K0 959 354 Component: S.Sens.Fahr.V U01 ---- Serial number: 50334142ZZZZZZZZZZZZ Crash sensor for side airbag: front passenger side: Subsystem 2 - Part No SW: 5K0 959 354 HW: 5K0 959 354 Component: S.Sens.Beif.V U01 ---- Serial number: 54711542ZZZZZZZZZZZZ Crash sensor for side airbag: rear: driver side: Component: S.Sens.Fahr.H --- ---- Serial number: 2C2C0D76ZZZZZZZZZZZZ Crash sensor for side airbag: rear: passenger side: Component: S.Sens.Beif.H --- ---- Serial number: 1A3E0C39ZZZZZZZZZZZZ No fault code found. ------------------------------------------------------------------------------- Address 16: Steering wheel Labels: 1K0-953-549-MY9.lbl Part No SW: 1K0 953 549 CF HW: 1K0 953 549 CF Component: J0527 055 0111 Coding: 0000532 Shop #: WSC 01357 011 00200 VCID: 787B0CD6B5B04F015F-802C Subsystem 1 - Part No: 3C8 959 537 Labels: 3C8-959-537.CLB Component: E221__MFL-TAP H2ÿ 0021 Coding: 00000226 Shop #: WSC 00000 No fault code found. ------------------------------------------------------------------------------- Address 17: Instruments (J285) Labels:| 5K0-920-xxx-17.clb-SRI1 Part No SW: 5K0 920 870 C HW: 5K0 920 870 C Component: KOMBI H21 0028 Serial number: 00000000000000 Coding: 170F00 Shop #: WSC 01357 011 00200 ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04020 ROD: EV_Kombi_UDS_VDD_RM09_004_VW32.rod VCID: 2D34A637210B890CF7-8078 No fault code found. ------------------------------------------------------------------------------- Address 19: CAN Gateway Labels:. 1K0-907-530-V3.clb Part No SW: 1K0 907 530 Q HW: 1K0 907 951 Component: J533 Gateway H07 5063 Revision: H07 01 Serial number: 180908F2002435 Coding: E9A07F060002020002 Shop #: WSC 01357 011 00200 VCID: 353C961F89E3D93437-8060 No fault code found. ------------------------------------------------------------------------------- Address 25: Immobilizer (J334) Labels:. 5K0-920-xxx-25.clb Part No SW: 5K0 920 870 C HW: 5K0 920 870 C Component: IMMO H21 0028 Serial number: ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03002 ROD: EV_Immo_UDS_VDD_RM09.rod VCID: 2D34A637210B890CF7-8078 No fault code found. ------------------------------------------------------------------------------- Address 42: Door Elect, Driver Labels:. 1K0-959-701-MAX3.clb Part No SW: 1K0 959 701 AN HW: 1K0 959 701 AN Component: Tuer-SG 008 2015 Coding: 0004278 Shop #: WSC 01357 011 00200 VCID: 7A7900C8BD8A7B174F-802E No fault code found. ------------------------------------------------------------------------------- Address 44: Steering Assist Labels: 1K0-909-14x-GEN3.clb Part No: 1K0 909 144 C Component: EPS_ZFLS Kl. 70 2301 Revision: 00H15000 Shop #: WSC 01324 785 00200 VCID: 2A29A038FD3A9B67CF-807E No fault code found. ------------------------------------------------------------------------------- Address 46: Central Conv. Cannot be reached ------------------------------------------------------------------------------- Address 52: Door Elect, Pass. Labels:. 1K0-959-702-MAX3.clb Part No SW: 1K0 959 702 AG HW: 1K0 959 702 AG Component: Tuer-SG 008 2033 Coding: 0004534 Shop #: WSC 01357 011 00200 VCID: 747F14DA85A4277D3F-8020 No fault code found. ------------------------------------------------------------------------------- Address 56: Radio (J503) Labels:. 5M0-035-1xx-56.clb Part No SW: 5M0 035 186 L HW: 5M0 035 186 L Component: Radio RCD310 004 0119 Revision: 01000001 Serial number: VWZ1Z2N1898372 Coding: 0500040004000C Shop #: WSC 01357 011 00200 VCID: 353C961F49E3D93437-8060 1 Fault Found: 03138 - Input AUX IN 011 - Open Circuit Freeze Frame: Fault Status: 01101011 Fault Priority: 5 Fault Frequency: 1 Reset counter: 189 Mileage: 129869 km Time Indication: 0 Date: 2015.02.24 Time: 18:48:18 ------------------------------------------------------------------------------- Address 62: Door, Rear Left Labels:. 1K0-959-703-GEN3.clb Part No SW: 1K0 959 703 AL HW: 1K0 959 703 AL Component: Tuer-SG 007 2009 Coding: 0000144 Shop #: WSC 01357 011 1012552 VCID: 7A7900C8BD8A7B174F-802E No fault code found. ------------------------------------------------------------------------------- Address 72: Door, Rear Right Labels:. 1K0-959-704-GEN3.clb Part No SW: 1K0 959 704 AL HW: 1K0 959 704 AL Component: Tuer-SG 007 2009 Coding: 0000144 Shop #: WSC 01357 011 1012552 VCID: 7B8602CDA1817D2E47-802E No fault code found. End-------------------------(Elapsed Time: 02:14)-------------------------- Any help here would be appreciated
- #9
New update
Yesterday I removed EGR and ASV and found some oil has leaked inside the ASV (pic 1-4). The gears look all ok and EGR (pic 6+7) didn't have a single oil drop inside electric housing. Som carbon build up in both units just a thin layer, but I guess that's normal. I cleaned a little around the egr lid (pic 8 before cleaning) just in case. The wheels/gears move easily with no obstruction opening the flaps and lid on asv and egr.
I sprayed electronics cleaner on the electronics inside asv and have let dry over night. My next step would be to reassemble the units back, but I would like to check with a multimeter if there is any way to do that? Need some guiding here!
I forgot to upload the j338 adaptation video in the last post, but here it is. Are these values correct or are they showing that something is wrong? They show (minus) -5.5% on both left columns and the voltage far right changes between 0.000V and 0.076V (one time very briefly up to 0.1xxV). Something is interfering in some way (bad connections between units/wires etc?) and asv doesn't get the full voltage its supposed to? In the other two adaptations linked in my other post they are considerably higher, at around 0.5xxv. What should "correct" voltage values be?
https://youtu.be/oxywRC_0cFI
Here are some pictures of the asv and egr: https://imgur.com/a/2hU7ELY
1-4: ASV gears/electronics
5: ASV flap
6: EGR gears (clean)
7: EGR electric terminal pin inside
8: EGR lid (some build up)
9: Intake manifold (this is where EGR connects, a thin layer of carbon here)
In the previous post the attached vcds log had an error with address 09: cent. elect. (J519) posting new here for this address (see attached two files). Would there be any correlation between faults here and the other faults (ASV++)? Disregard fault on headlamp cleaning system as I've removed the fuse here. The lights work so I don't know what fault it could be, but the bulbs are pretty old. Maybe just replacing them should fix it.
View attachment 7643
View attachment 7644
Before removing the asv and egr I checked to see if the asv flap would move turning the ignition on/off. It didn't. I heard some kind of a tick sound though. Could it have been switched off since its in "faulty mode"? Right before getting my hands dirty I had the motor running and switched off the ignition the flap seemed to work fine because there was no engine shake, which had previously been shaking for the last week/week and a half when switching off.
So I'm still thinking wire issues or maybe the oil leak inside asv caused this? Now that I have cleaned it, maybe that would fix the problem? But what about the manifold fault codes p2015, p2004/6 that recently came up? Are they just a symptom of the asv faults?
Last edited:
- #10
I've just resistance tested the asv terminal pins and the 12v motor (control the gears/flap) with a dmm. See below chart:
As you can see the resistance shows 0.6 and 0.7 on the terminal pin 4 and 5 which goes to 12v motor (see pic with arrows), so the housing terminal seems fine for those pins. And the 12v motor shows 0.6 so this is fine. These are my guesses.
EDIT: I finally got test results from the other 3 pins: They all show up fine about 0.6 - see chart for results!
Are there any other tests I can do with a dmm before i mount the valves back in the car?
12v motor
View attachment 7649
Last edit:
So my final question now is, I need help to probe the wires when connected to the car: Which wire can I test and how? I would start to disconnect negative on battery (turn on ignition?), place black probe on negative battery and where can I put red test probe now that I have the answers to what wire has which signal??
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- #11
I am sure I posted a reply to this yesterday???? I would not test like that as I do not have the time, the number of hours spent proving the part defective would cost more than the new part.
- #12
I see it as learning new things which I like and I hate paying for new stuff when there's a way to fix it. That's why I'm here. If you could guide me in the direction of probing the pins without damaging the electronics that would be awesome
- #13
That is being a proper mechanic but there is no place for it in the modern world as customers need results fast and cheap or they scrap the car... apparently that is eco friendly... scrap a ten year old car and buy electric!
- #14
That is being a proper mechanic but there is no place for it in the modern world as customers need results fast and cheap or they scrap the car... apparently that is eco friendly... scrap a ten year old car and buy electric!
Yes, that's the way the world is going towards! In the meantime if you would like to hand over some dough so I can buy me an electric ride that would be very nice if not I will have to continue with my fault findings, and I would be very happy if you would like to share any knowledge towards me trying to use the multimeter in the correct way
- #15
There is no VAG test procedure for checking the inputs to the V157 or the outputs from the integral G69. The plug has five wires
1) Yellow/blue which is a 5v supply from the ECU and also supplies a number of other components so if this was missing you would have at least five fault codes.
2) Lilac/yellow
3) Brown/red which is the earth and again provided by the ECU and shared with six components so the same would apply as in 1
4) Brown/lilac
5) Lilac
The diagram does not show what 2, 4 and 5 do apart from coming from the ECU to the G69 inside the V157.
- #16
There is no VAG test procedure for checking the inputs to the V157 or the outputs from the integral G69. The plug has five wires
1) Yellow/blue which is a 5v supply from the ECU and also supplies a number of other components so if this was missing you would have at least five fault codes.
2) Lilac/yellow
3) Brown/red which is the earth and again provided by the ECU and shared with six components so the same would apply as in 1
4) Brown/lilac
5) Lilac
The diagram does not show what 2, 4 and 5 do apart from coming from the ECU to the G69 inside the V157.
Did you check out the videos I posted? This shows measuring blocks group 124 "throttle valve control module (j338 adaptation), is it not a suitable test for my specific car model?
Compared to the other two videos the voltage is very low 0.076v at max. vs the other two have 0.5xxv.
Wire 2 is "OUT" what does that mean? And wire 4 is "motor" does it send a positive signal to the motor? Wire 5 is the thickest (same with wire 4) and a solid color does that point to being positive?
Does it seem right that j338 has wire 3+4+5 and G69 has wire 1+2 and where should I put the lead (positive or negative?) for voltage measuring?
- #17
I don't know what you should see on 2, 4 and 5, ELSA does not tell you. If it was being worked on with the ODIS system that would probably bring up a Guided Fault Finding test that would say what you should see. I don't think a V157 needs adapting, again ELSA does not mention it.
- #18
UPDATE
After reinstalling ASV I still get error p0122, but also had a couple errors from intake manifold before I removed the ASV, total 7 errors. The thing is they are all "intermittent". This must be a clue? The ASV ( J338 ) is operating but having intermittent faults. Should this be a sign of bad wires or maybe engine vibration on wires? I'm not sure where to check now. The p0122 fault is the only one that has frequent faults (70) the others have only 1 fault frequency (except p2100 "throttle actuator control circuit" which has faulted 4 times):
Code:
7 Faults Found:000290 - Throttle Position Sensor (G69) P0122 - 000 - Signal too Low - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 70 Reset counter: 255 Mileage: 129222 km Time Indication: 0 Date: 2015.03.10 Time: 13:47:57 Freeze Frame: RPM: 1955 /min Speed: 32.0 km/h Voltage: 14.06 V Lambda: 21.3 % Lambda: -6.3 % Bin. Bits: 00000000 Voltage: 0.000 V 008448 - Throttle Actuator Control Circuit P2100 - 000 - Open Circuit - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 4 Reset counter: 255 Mileage: 129885 km Time Indication: 0 Freeze Frame: RPM: 0 /min Speed: 0.0 km/h Load: 0.0 % Load: 100.0 % Lambda: 99.4 % Mass Air / Rev.: 0.0 mg/str Temperature: 32.4°C 008213 - Intake Manifold Flap Position Sensor (Bank 1) P2015 - 000 - Implausible Signal - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 1 Reset counter: 255 Mileage: 129876 km Time Indication: 0 Date: 2015.03.10 Time: 01:27:45 Freeze Frame: RPM: 0 /min Speed: 0.0 km/h Load: 0.0 % Lambda: 7.9 % Lambda: 0.0 % Voltage: 0.380 V Bin. Bits: 00000001 008198 - Intake Manifold Flap; Bank 1 P2006 - 000 - Stuck Closed - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 1 Reset counter: 255 Mileage: 129876 km Time Indication: 0 Date: 2015.03.10 Time: 01:27:54 Freeze Frame: RPM: 0 /min Speed: 0.0 km/h Load: 0.0 % Load: 100.0 % Lambda: 6.3 % Mass Air / Rev.: 0.0 mg/str Temperature: 66.6°C 008196 - Intake Manifold Flap; Bank 1 P2004 - 000 - Stuck Open - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 1 Reset counter: 255 Mileage: 129876 km Time Indication: 0 Date: 2015.03.10 Time: 01:27:55 Freeze Frame: RPM: 0 /min Speed: 0.0 km/h Load: 0.0 % Load: 100.0 % Lambda: 89.2 % Mass Air / Rev.: 0.0 mg/str Temperature: 66.6°C 001029 - EGR Sensor 1 P0405 - 000 - Signal too Low - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 1 Reset counter: 255 Mileage: 129885 km Time Indication: 0 Freeze Frame: RPM: 0 /min Speed: 0.0 km/h Voltage: 12.24 V Lambda: 99.4 % Lambda: -2.4 % Voltage: 0.000 V Bin. Bits: 00000000 005184 - EGR Valve (N18) P1440 - 000 - Open Circuit - Intermittent Freeze Frame: Fault Status: 00100000 Fault Priority: 2 Fault Frequency: 1 Reset counter: 255 Mileage: 129885 km Time Indication: 0 Freeze Frame: RPM: 0 /min Speed: 0.0 km/h Load: 0.0 % Load: 100.0 % Lambda: 99.4 % Mass Air / Rev.: 0.0 mg/str Temperature: 21.6°C Readiness: 0 1 0 0 0 I suspect the other faults were a bi-effect by the p0122 which has faulted 70 times. Should I check some fuses, someone at another forum suggested certain fuses but can't remember where. There are no fuses for these parts (ASV and EGR) but sometimes bad fuses can effect other parts??
In the last days after reinstalling the part the codes are always gone when I start the car.. Only to reappear, especially when harder accelerating. Have been very soft on the pedal last weeks and it seems to help some.. Low rpm
- #19
You do realise that on the CBAB engine the V157 is not the throttle body inlet flap before the EGR valve, it is the motor on the inlet manifold? The ASV flap is the "J338 Throttle Valve Control Unit" which contains the G69.
- #20
You do realise that on the CBAB engine the V157 is not the throttle body inlet flap before the EGR valve, it is the motor on the inlet manifold? The ASV flap is the "J338 Throttle Valve Control Unit" which contains the G69.
Are you saying this because I wrote something wrong?
Source: https://www.volkswagenforum.co.uk/threads/p0122-tps-help-reading-wire-diagram-for-fault-finding.36974/
Posted by: oscarprefontainee0193133.blogspot.com
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