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Obd Error code p2181 - Cars & Trucks

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Posted on Jan 02, 2017

SOURCE: CEL is ON. OBD code P2181. I already replaced the ECT.

P2181 is a overheating engine.  
Can be:
Bad fan themoswitch, temp sensor themostat water pump impeller fan motor or fuse on battery
check to see if fans work by turning on Air Conditioner (fans should run with A/C on). Turn A/C off, warm engine, check to see if fans come on, if they do NOT it may be thermo switch on radiator on lower left side, has 3 wire plug, takes 1-1/8" wrench/socket to remove.  This thermo switch controls fans when temp reaches 195F, if fans do not come on at engine temp 190-195F try  replace switch VW part number: 1J0-959--481-A  You can verify if the switch is bad by shorting wire 1 and 2 (fans should come on when jumpered).

Posted on Oct 26, 2008

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1 Answer

How to fix p2181 code


you did not say what car so I will give the obd-2 code reference It refers to cooling system performance===causes---radiator---coolant thermostat---engine coolant blower motor ( fan)ECT sensor.. If you have a heating problem then these causes will be close enough to give you some idea of where to look for the problem

Jan 24, 2014 | 2005 Audi A4

1 Answer

Error code p2181


something is up with your cooling system

Sep 09, 2013 | 2007 Chrysler Sebring 2.7

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My car is running codes P0011 and P2181. Can you tell me what that is please. 2004 vw jetta gl


P0011 - Camshaft positioning sensor
P2181 - Engine cooling temperature sensor.
If you have a repair manual (chilton/haynes/etc) these should be fairly simple fixes.
Camshaft positioning sensor for my car was $35 and took about 15 minutes to change.

2carpros.com suggested the P2181 is also fairly easy to replace
http://www.2carpros.com/questions/volkswagen-jetta-2004-volkswagen-jetta-code-p2181-engine-cooling-performance

Jul 24, 2011 | 2004 Volkswagen Jetta

1 Answer

Got a P2181 code?


CODE P2181 COOLING SYSTEM PERFORMANCE MALFUNCTION CONDITIONS. POSSIBLE CAUSE FAULTY ENGINE COOLANT TEMPERATURE SENSOR.FAULTY THERMOSTAT.

Feb 28, 2011 | 2005 Audi A4

1 Answer

I have a 2005 vw jetta gls 2.0L 4cyl throwing up codes p2181 p2181 and p0068 what are these


p2181 = cooling system performance

p0068 = Throttle position sensor inconsistent with mass air flow sensor.

Feb 25, 2011 | Volkswagen Jetta Cars & Trucks

1 Answer

I have a 2006 cayyanne and the code is p2181 what is it?


their is no such code in my porsche OBD codes ,i have tried transposing the number in my scientific calculator and still cannot use this number ,please contact the manufacturer of the code reader for the meaning of this code because as its a 2006 model then i know for a fact that a europeon market vehicle cannot be read or the ECU connected to via the OBDII ,only VW can do this via the internet with the factory ,sorry i cannot help

Nov 17, 2010 | Porsche Cayenne Cars & Trucks

2 Answers

5 error cods on my 2002 Jetta GLS 1.8 Turbo Engine


P0420= Catalyst System Efficiency Below Threshold Bank 1
P0300=Random/Multiple Cylinder Misfire Detected
P0301=Cylinder 1 Misfire Detected
P0172=System Too Rich Bank 1
P2181=Cooling System Performance
you need to write these down,have someone clear the codes in the car,then go for short ride and recheck which if any code reappears.it's like domino's affect,one sensor can start a chain affect with the others.

Dec 09, 2009 | 1998 Volkswagen Jetta

1 Answer

Getting ETC p2181 code for vw gti 1.8 t 02


punch one code at a time into google search check related symptoms

Sep 12, 2009 | 2002 Volkswagen GTI

1 Answer

CEL is ON. OBD code P2181. I already replaced the ECT 3 mo ago due to OBD code P0118.


P2181 is a overheating engine.  
Can be:
Bad fan themoswitch, temp sensor themostat water pump impeller fan motor or fuse on battery
check to see if fans work by turning on Air Conditioner (fans should run with A/C on). Turn A/C off, warm engine, check to see if fans come on, if they do NOT it may be thermo switch on radiator on lower left side, has 3 wire plug, takes 1-1/8" wrench/socket to remove.  This thermo switch controls fans when temp reaches 195F, if fans do not come on at engine temp 190-195F try  replace switch VW part number: 1J0-959--481-A  You can verify if the switch is bad by shorting wire 1 and 2 (fans should come on when jumpered).

Oct 15, 2008 | 2002 Volkswagen Jetta TDI

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