Passat (B5) :: Code P1296 Cooling System Malfunction / P1654 Check DTC Memory Of Control Panel ECU
Nov 20, 2007
I am getting to check engine codes and I can't figure out what is causing them, one is P1296 cooling system malfunction, the other is P1654 Check DTC Memory of control panel ECU, any clues as to why I'm getting these, I did have a bad thermostat i changed that and it's still on, I also used the new prestone antifreeze for all makes and models, cause I am about 200 miles away from a dealership for g12.
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The MIL came on and I scanned for codes. First was P0118, Engine Coolant Temp Circuit High Input. Reset it and then received P1296 -Cooling System Malfunction. Temp gauge needle is positioned where it always is.
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I've recently started popping up a random P2181 performance malfunction in cooling system.
It's so random and shows no signs of any other problems that I'm confused. Temp gets hot, stays exactly where it should be, 200. Never gets a tick hotter, or even close to above 200. Air works, heat works fine. No loss of power. It only seems to come on when I really put my foot down.
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This code came up on my car, what it means or what part needs to be replaced.
008577 - Performance Malfunction in Cooling System
P2181 - 008 - Implausible Signal - MIL ON
Freeze Frame:
Fault Status: 11101000
Fault Priority: 0
Fault Frequency: 2
Mileage: 84971 km
[Code] .....
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My 02 Passat V6 is throwing this code. I have searched on this forum & the description for this problem is a coolant sensor problem...but my car doesn't exhibit this. The CEL I get is P1296 Manufacturer Control Fuel Air Metering. I ran it on the scan tool before & it threw a different code (which I forgot to write down) but it was basically something about a cylinder misfire...
Occasionally car is VERY difficult or impossible to start. Sometimes I have to wait an hour before retrying before I get it to start. When it does start it blows white smoke & has a VERY rich fuel smell. What could be causing this?
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The code in question is:
18613 - Performance Malfunction in Cooling System
P2181 - 008 - Implausible Signal - MIL ON
Long story short, there are 5 main reasons this problem can pop up, listed in order of likelihood, least to greatest:
1) Coolant sensor
2) Thermostat
3) Bad fans
4) Coolant mixture
5) Water pump
It's a fun catch-all code that can be thrown from any of those. Given that our cars are approaching the 6 year mark, the coolant sensor & thermostat are the most likely culprits. Most of us up on maintenance have already done the green-top sensor, so it's probably the thermostat. In which case, here is the official changing the thermostat DIY: [URL] .....
If you get this code, first check your fans. They're running? Okay, change your sensor & clear it. If it comes back, change the thermostat. If it still comes back, which has been known to happen, investigate further. [IMG] [URL] .....
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My MIL came on the other night so I brought it to the dealer today for diagnosis.
Per tech, "Found 1 DTC P2181 for cooling system malfunction, checked measuring values, found thermostat sticking open.
Recommendation is to replace thermostat with housing." I have 95K miles on the car, original owner...first time in a long time to have an issue.
The SA indicated the thermostat replacement. The tech indicated the thermostat is in the front of the engine which is hard to access.
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Back in March I started a thread regarding my 04 Santa Fe 3.5 which would not start after a spark plug change.
After a ton of research, & a smoke test on the intake I came to the conclusion that there was an issue with the throttle sensor as I unknowingly opened it when I was removing the intake to get to the last bolts behind the manifold. Shortly after my post, I decided to bite the bullet & buy a junkyard TB out of another Santa Fe 3.5.
After installing the new TB, the car now starts but runs extremely rich. I am now getting the code p2135 for Electronic Throttle Control System Malfunction.
Luckily up until this point I haven't needed the Santa Fe as it is mainly a winter vehicle. However, winter is quickly approaching & I would like to have her running before the snow starts to fly.
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Have an '07 2.0T w/92K on it. Check eng light came on over the weekend. Performance is fine etc. Went to AutoZone just to find the general area of the the trouble code since there's no one with a VAG Com nearby. The code is as the title indicates. For the last 5 months the temp gauge has been moving 1-2 ticks to the left (cooler) of the normal 200 degrees, then it will go back to 200 etc. It previously has always stayed on 200 once it warmed up. Does this sound like a thermostat?
If it is, I'm wondering if I could save some money while they were in there to go ahead and change the TB as well? From what I've researched the thermostat is in same area. I was planning on doing the TB at around 100-110k so while it would be earlier than planned I'd do it if it meant saving a bit from the combo work.
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I'm not too knowledgeable about wiring and electrical systems. I'm getting a P1451 code (EVAP Control System Canister Vent Solenoid Circuit Malfunction) on my 99 4.2. I've read that it could be a bad solenoid, bad wiring, or a blown fuse. So far I've;
- checked (and changed) the related fuse
- checked the wiring for damage at the connector
- checked voltage at the connector (12 volts)
- checked the resistance at the solenoid (around 60 ohms)
- actuated the solenoid with a 9V battery (can hear it opening and closing)
I haven't had a chance to check the wiring all the way back up the frame to yet, but I noticed that the ground at the trailer wiring harness has broken off the frame. Would this potentially cause a fault in the upstream wiring? I'm going to slap a new connector on and bolt it back down anyway, but as it's Labour (Labor) Day I'll have to wait for the stores to be open tomorrow.
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I was driving today when the CEL came on, I scanned the car which gave me 1 code: P1296.
I googled it and said it is possibly the coolant temp sensor?
The Engine temp was normal at 190' or just below even after quite a bit of driving today.
Would the problem just be the sensor or should I be looking for other problems as well?
The car is a 2002 B5.5 AWM 1.8T Tiptronic.
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My mechanic has diagnosed a trouble code P0601 (Internal Control Memory Fault) on my 2002 Dodge Grand Caravan. He and I feel the car is running fine. Do I need to get the PCM replaced (as I've been reading online) or can I drive it as is? We don't have emissions checks.
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Bought a mk4 1.8 gti golf last week and day after I got it I filled it up with petrol at Tesco. Since I did that, the engine management light has been on. It hasn't affected the drive or anything so haven't done anything about it yet.
One of the guys at work plugged in his computer thing to it to find out the fault and the code was coming up as 'cooling system malfunction'. He took the fault off so the light no longer comes on but now it makes the most horrendous noise like a grinder or something when the engine is running. I have not driven it anywhere and won't until it has been looked at but just wondered what others thoughts on it might be? Could the noise be something to do with the turbo? Had new cam belt, water pump etc at about 138000/139000 miles (November 2013) and hasn't done more than 10000 since.
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So I picked up this 24v vr6 in florida and it has the folowing codes:
p2181 malfunction in cooling system
p0303 misfire in cylinder 3
p0305 misfire in cylinder 5
p0300 random multiple misfires detected
p1570 engine control module disabled
I am thinking the ecu is fried? otherwise why else would that last code pop up. misfire codes im assuming are related to the ecu because theres new COP on each cylinder, newer starter, newer alternator, new spark plugs. Cooling system malfunction im thinking could be the ECT sensor, apparently the water pump was replaced a little while back.
If the ecu is fried can I buy a new one chipped from like APR or do they need the existing ecu and then they modify it?
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New owner of a 2003 1.8TPassat (29,000mi) as of the last 2 weeks and have just had my MIL come on. Scanned it at home with my Actron CP9125 scanner and got this code (P0455) which reads in the scanners manual as "EVAP Emission Control System Leak (Large)". Didn't know if this was a generic description of the code or VW has a more specific definition. What precisely this is in reference to, gas cap, vacuum hose????? Or what VW's actual description of this code is?
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Not enough cooling in the B5.5 Passat wagon.
I had the freon checked and it seems to be fine, however it takes a long time for the cabin to cool of here in North Carolina. THe air coming out of the vents doesn't seem as cold as my older 1998 Passat. I used to have a silver sedan 1.8T and the a/c was temperature was ice cold and it got very cold after 20 seconds or so. It reminded me of GM cars.
My wagon is dark blue and beige leather interior which is probably why it takes longer to cool off. If you go for a short trip and the car has been out in the sun it would take at least 15 to 20 minutes to get comfortable. The compressor generally cycles off only once and then it stays on for the duration. My old sedan was the same way. I use the a/c on the rec mode which keep the air colder but still not quite as cold as some other models.
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We have a 2003 Passat 1.8t. Had the Check engine Light come on. Went down to AutoZone and hookeded up the OBDII reader. Came up with P0171, Fuel System for Bank 1 was too lean. Probable causes:
1. Fuel Pressure of MAF (If Bank 1 & Bank 2 set codes together)
2. O2 Sensor
3. Ignition Misfire
4. Fuel Injector Problem
Car has 60K - has always run well. Wife says she thinks it's running a bit sluggish. I rarely drive the car, but I think she's right. Car is not missing or running rough.
I cleared the code & started the engine; Check Engine Light is off; then looked at the codes and I find a P0171 (Pending). She tells me that the light has been on before & then gone away. So I guess it clears itself, but eventually comes back.
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There’s a problem with my climate-control system. When I turn the fan on, there is no air blowing through the outlets on the instrument-panel. (There is air blowing thru the 2 vents immediately above the floor, and some air blowing at the base of the windshield). This problem exists regardless of what speed I turn the fan on, and regardless of which climate-control setting I choose (or whether I turn on the A/C).
This problem WAS occurring on an intermittent basis, and seemed to develop in RESPONSE TO my turning the knob to “defrost.” Now, however, the problem seems to be permanent. I wonder whether the basic problem is with the round knob that controls the various climate-control settings, as this knob seems somewhat hard to turn.
I have a 2004 Buick Century sedan, with automatic transmission (4speed) w/overdrive, V-6 engine 3.1 L.
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C1241 is low voltage warning and C1223 is an ABS control system malfunction.
Are or could these be related? Where should I start to troubleshoot the issue?
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I recently acquired a 2003 Dodge Neon and have also aquired a problem with the automatic transmission.The check engine light was on so I read the codes and they are noted below
P0700 Transmission Control System Malfunction
P0755 Shift Solenoid B Malfunction
Based upon some very basic research, I checked into replacing the Transmission Control solenoid.It sounded like this is a pretty common problem for this transmission, so hopefully this would fix the problem.
I was able to get the old one pulled off without to much trouble, but prir to installing the new one I was wondering if there would be a way to test the old one to verify that it was actually bad. I would prefer to not install the new $150 part only to find out that this was not the problem. (and then I could not return it once it had been installed) Maybe some low air pressure on the ports and verify that the ports / flow changes if 12 VDC is applied to the right pins?
A little more information in regards to the "failure" mode. The transmission appears to act the same no matter if it is placed in 1,3 or D. (reverse works fine) I would have expected that it would limit out with the motor taching up pretty high at about 20 MPH in 1(low). It goes down the road fine up to about 55 mph and then the engine starts taching up.
I also tried to reset the error codes with my "craftsman" code reader and it would not do it. I seem to recall seeing something about needing to reset codes before the new solenoid would work. Will pulling the battery for an hour clear the code? Do I need to clear the code?
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Last night on my way to go get hammered the check engine light popped on...
"Cooling System Performance"
I have read a few different post, and the last one I read referred to his radiator fans. I know for a fact one of them isn't working and I haven't replaced it yet because it hasn't advisable effected my driving.
So my question is what could be causing this? Also I'm not sure if this matters but my a/c doesn't work either.
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