10 Jetta TDI code P0237

   #1  

rmunn

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I have a 2010 Jetta tdi in the shop with a code p0237. I replaced the manifold pressure sensor with a new one from vw, no change. I have scoped the power and grounds to the sensor, and they are fine. However the signal from the sensor to the ecu has downward spikes in it, when it has several in a row is when it throws the light on. What could be causing these spikes?
 
   #3  

Jack@European_Parts

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Hitting the throttle pedal.............

Sounds like a default is in order..........get us that auto-scan to get further destructions.

Are you sure you changed the correct sensor?
 
   #4  

rmunn

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VCDS Version: Release 12.12.3
Data version: 20140822

Monday,15,September,2014,09:52:00:13524

Chassis Type: AJ (7N0)
Scan: 01 02 03 08 09 15 16 17 19 1C 25 42 44 46 52 56 62 65 72 77


VIN: 3VWAL7AJ5AM181667

01-Engine -- Status: Malfunction 0010
02-Auto Trans -- Status: OK 0000
03-ABS Brakes -- Status: OK 0000
04-Steering Angle -- Status: OK 0000
08-Auto HVAC -- Status: Malfunction 0010
09-Cent. Elect. -- 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
1C-Position Sensing -- Status: OK 0000
25-Immobilizer -- Status: OK 0000
42-Door Elect, Driver -- Status: OK 0000
44-Steering Assist -- Status: Malfunction 0010
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
65-Tire Pressure -- Status: OK 0000
72-Door, Rear Right -- Status: OK 0000
77-Telephone -- Status: OK 0000

-------------------------------------------------------------------------------
Address 01: Engine (CJA) Labels: 03L-906-022-CBE.clb
Part No SW: 03L 906 019 CM HW: 03L 906 022 TS
Component: R4 2,0L EDC G000AG 9970
Revision: 12H08--- Serial number:
Coding: 0050078
Shop #: WSC 00066 000 00000
VCID: 78F5D7040BE79FDEA3D-802D

1 Fault Found:
000567 - Manifold Pressure / Boost Sensor (G31)
P0237 - 000 - Signal too Low - Intermittent
Freeze Frame:
Fault Status: 00100000
Fault Priority: 2
Fault Frequency: 1
Reset counter: 255
Mileage: 64973 km
Time Indication: 0
Date: 2045.14.12
Time: 00:14:44

Freeze Frame:
RPM: 1081 /min
Speed: 25.0 km/h
Voltage: 13.91 V
Absolute Pres.: 1009.8 mbar
Absolute Pres.: 418.2 mbar
Temperature: 25.2°C
Temperature: 39.6°C

Readiness: 0 0 0 0 1

-------------------------------------------------------------------------------
Address 02: Auto Trans Labels: 02E-927-770.lbl
Part No SW: 02E 300 052 G HW: 02E 927 770 AL
Component: GSG DSG AG6 511 2210
Revision: 05151112 Serial number: 00001007110249
Coding: 0000020
Shop #: WSC 02069 000 90108
VCID: 1835F7842BA77FDE43D-804D

No fault code found.

-------------------------------------------------------------------------------
Address 03: ABS Brakes (J104) Labels: 1K0-907-379-60EC1F.clb
Part No SW: 1K0 907 379 AT HW: 1K0 907 379 AT
Component: ESP MK60EC1 H30 0105
Revision: 00H30001
Coding: 114B400C492A00FB881102EA92200042310000
Shop #: WSC 00066 000 00000
VCID: 840D33F4072F4B3E3F5-80D1

No fault code found.

-------------------------------------------------------------------------------
Address 08: Auto HVAC (J301) Labels: 3C8-907-336.clb
Part No SW: 3C8 907 336 AJ HW: 3C8 907 336 AJ
Component: Climatic H14 0305
Revision: 00009001
Coding: 0000001002
Shop #: WSC 00066 000 00147
ASAM Dataset: EV_Climatic A01005
ROD: EV_ClimaBasis_SE36.rod
VCID: 75EBDE30D4F5E2B6B8B-8020

1 Fault Found:
9480469 - Control Circuit for A/C Compressor
B10A9 15 [009] - Open or Short to Plus
Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 2
Fault Frequency: 2
Reset counter: 12
Mileage: 64945 km
Date: 2045.14.09
Time: 04:33:52


-------------------------------------------------------------------------------
Address 09: Cent. Elect. Labels: None
VCID: 55ABBEB0BC3582B698B-FFFF

No Faults Found
or DTCs not supported by controller
or a communication error occurred

-------------------------------------------------------------------------------
Address 15: Airbags Labels: 1K0-909-605.lbl
Part No SW: 1K0 909 605 AD HW: 1K0 909 605 AD
Component: 04 AIRBAG VW8R 036 8900
Revision: 06036000 Serial number: 003EVM03JGJ+
Coding: 0012340
Shop #: WSC 00066 000 00000
VCID: 6ED9F15C79A3D16E791-803B

Subsystem 1 - Part No: 1K0 959 339 H
Component: BF-Gewichtsens. 007 0006

Subsystem 2 - Serial number: 6332MSME527255300

Subsystem 3 - Serial number: 6342MSME5424061C6

Subsystem 4 - Serial number: 6351HSME2312003AV

Subsystem 5 - Serial number: 6361HSME23200B4A0

Subsystem 6 - Serial number: 63727SME23032D26Y

Subsystem 7 - Serial number: 63827SME22500720M

No fault code found.

-------------------------------------------------------------------------------
Address 16: Steering wheel Labels: 1K0-953-549-MY9.lbl
Part No SW: 1K0 953 549 CD HW: 1K0 953 549 CD
Component: J0527 056 0111
Coding: 0001731
Shop #: WSC 00066 000 00000
VCID: 76E9D93C01F3E9AEB11-8023

Subsystem 1 - Part No: 5K0 959 542 Labels: 3C8-959-537.CLB
Component: E221__MFL-TAS H05 0010
Coding: 00000130
Shop #: WSC 00000

No fault code found.

-------------------------------------------------------------------------------
Address 17: Instruments (J285) Labels: 5K0-920-xxx-17.clb
Part No SW: 5M0 920 970 G HW: 5M0 920 970 G
Component: KOMBI H05 0305
Serial number: 00000000000000
Coding: 271F00
Shop #: WSC 00066 000 00184
ASAM Dataset: EV_Kombi_UDS_VDD_RM09 A04052
ROD: EV_Kombi_UDS_VDD_RM09_VW21.rod
VCID: 346D23349F0FBBBE4F5-8061

No fault code found.

-------------------------------------------------------------------------------
Address 19: CAN Gateway Labels: 7N0-907-530-V1.clb
Part No SW: 7N0 907 530 HW: 1K0 907 951
Component: J533 Gateway H27 5603
Revision: H27 Serial number: 16091001211068
Coding: ED807F0700160200001002
Shop #: WSC 00066 000 00000
VCID: EDDB7650F4A5AA76C0B-80B8

No fault code found.

-------------------------------------------------------------------------------
Address 1C: Position Sensing Labels: 1Kx-919-xxx-1C.lbl
Part No SW: 1K5 919 965 D HW: 1K5 919 965 D
Component: Kompass 001 0001
Revision: 00001000 Serial number: 1293324R56ZW06
Coding: 0000004
Shop #: WSC 00066 000 00000
VCID: 3C7D0B147F5F73FE875-8069

No fault code found.

-------------------------------------------------------------------------------
Address 25: Immobilizer (J334) Labels: 5K0-920-xxx-25.clb
Part No SW: 5K0 953 234 HW: 5K0 953 234
Component: IMMO H05 0305
Serial number:
Coding: 000000
Shop #: WSC 00000 000 00000
ASAM Dataset: EV_Immo_UDS_VDD_RM09 A03005
ROD: EV_Immo_UDS_VDD_RM09_SE36.rod
VCID: EAD17D4C0D4BBD4EA59-80BF

No fault code found.

-------------------------------------------------------------------------------
Address 42: Door Elect, Driver (J386) Labels: 3C0-959-70X-GEN4.clb
Part No SW: 3C0 959 701 B HW: 3C0 959 793
Component: TUER-SG FT 002 0307
Revision: 13101005 Serial number: 0001396447
Coding: 0004B5
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_DCU42BroseDriveSide A03004
ROD: EV_DCU42BroseDriveSide.rod
VCID: 2757C4785ED9C026FA7-8072

Slave Driver:
Subsystem 1 - Part No SW: 1K0 959 703 AH HW: 1K0 959 795 T Labels: 1K0-959-70X-GEN4.CLB
Component: J388__TSG-HL 006 1401
Serial number: 00000005084504
Coding: 000490

No fault code found.

-------------------------------------------------------------------------------
Address 44: Steering Assist Labels: 1Kx-909-14x-44.clb
Part No: 1K0 909 144 J
Component: EPS_ZFLS Kl. 70 3001
Revision: 00H17000
Shop #: WSC 02069 000 90108
VCID: 31632A20A81D8E96243-8064

1 Fault Found:
01316 - ABS Control Module
013 - Check DTC Memory - Intermittent
Freeze Frame:
Fault Status: 00101101
Fault Priority: 3
Fault Frequency: 13
Reset counter: 53
Mileage: 64959 km
Time Indication: 0
Date: 2045.14.10
Time: 05:54:10

Freeze Frame:
Voltage: 14.13 V
DU
Temperature: 34.0°C
RPM: 3034 /min
Speed: 24.0 km/h
Speed: 25.0 km/h
Count: 0


-------------------------------------------------------------------------------
Address 52: Door Elect, Pass. (J387) Labels: 3C0-959-70X-GEN4.clb
Part No SW: 3C0 959 702 B HW: 3C0 959 792
Component: TUER-SG BT 002 0307
Revision: 15101005 Serial number: 0001322188
Coding: 0004B4
Shop #: WSC 01383 790 50316
ASAM Dataset: EV_DCU52BrosePasseSide A03004
ROD: EV_DCU52BrosePasseSide.rod
VCID: 2855C74453C7CF5EF3D-807D

Slave Passenger:
Subsystem 1 - Part No SW: 1K0 959 704 AH HW: 1K0 959 794 T Labels: 1K0-959-70X-GEN4.CLB
Component: J389__TSG-HR 006 1401
Serial number: 00000005130662
Coding: 000490

No fault code found.

-------------------------------------------------------------------------------
Address 56: Radio (J503) Labels: 5M0-035-1xx-56.clb
Part No SW: 1K0 035 180 AC HW: 1K0 035 180 AC
Component: Radio Prem-8 H13 0043
Revision: -----26S Serial number: VWZ4Z7K3107294
Coding: 0500040004
Shop #: WSC 00066 000 00000
VCID: 61C39A60787D7E16F43-8034

1 Fault Found:
02635 - Tuner Not Enabled/Activated
000 - -
Freeze Frame:
Fault Status: 01100000
Fault Priority: 7
Fault Frequency: 1
Reset counter: 9
Mileage: 64925 km
Time Indication: 0
Date: 2045.14.08
Time: 01:29:29


-------------------------------------------------------------------------------
Address 65: Tire Pressure (J502) Labels: 1K0-937-08x-65.clb
Part No SW: 5K0 937 085 L HW: 5K0 937 085 L
Component: RDK 111 0821
Coding: 018705
Shop #: WSC 00066 000 00000
VCID: 3C7D0B14BF5F73FE875-8069

No fault code found.

-------------------------------------------------------------------------------
Address 77: Telephone Labels: 5P0-862-335.lbl
Part No SW: 1Z0 035 729 E HW: 1Z0 035 729 E
Component: FSE_2P8x H40 0190
Revision: 00000000 Serial number: 00000005288160
Coding: 0013077
Shop #: WSC 00066 000 00000
VCID: 3A710D0C756B4DCE959-806F

No fault code found.

End ---------------------------------------------------------------------
 
   #5  

Dana

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This appears to be a NAR market vehicle and I wasn't able to locate anything specific for us but I located 2 RoW TPIs:

1) TPI# 2026831/1 which appears to apply to RoW market PPD TDI engines so I added additional notes to the P0237 page. VW designed and sold an overlay harness (1KD 971 658) that you ran from G31/G42 (4-wire sensor with boost and temp in one assembly) to the controller itself to correct several similar fault codes.

This TPI doesn't apply but you may consider making an overlay harness from the sensor to the EDC to rule out any issues.

2nd) TPI # 2020544/2 isn't an exact match either but it is in the CR TDI ballpark. "Engine warning light on, entry P0237 boost pressure sender - A3 2.0l CR" "Engine warning light on and poor performance. Entry P0237 boost pressure sender, signal too small is logged in the engine control unit. In most cases, the complaint cannot be reproduced during a test drive."

In conclusion, the boost pressure hose (they list: 1K0 145 832 N and based on the parts catalog it could fit both VW and Audi models) fails and directly causes P0237. Even though that TPI is RoW and Audi A3 specific .. it is entirely possible that the measured values you see in addition to the "Signal too Low" description are the end result of an obstruction or leak of some sort. I would check all charge side connections for possible issues.
 
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