Questions tagged [electronic-control-module]
The electronic-control-module tag has no usage guidance.
88
questions with no upvoted or accepted answers
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1995 VM Jetta/Vento - ECU pinout for my car
I own a 95 Vento GL (Jetta for the american market), with an 1.8 8v, 90hp ADD model engine. The ECU for this model is marked with part number 037 906 021A.
I have checked with VAG-COM software and it ...
3
votes
0
answers
119
views
How to find out if your ECU has been reflashed?
Vehicle
2010 Audi A4 Quattro, 2.0L TFSI engine, automatic transmission, 180,000 km.
Recent History
Friend bought this car used 2 months ago from a private party. The check engine light comes on with a ...
- 12.2k
3
votes
0
answers
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when I plugged in my OBD scanner, I got not connected to the vehicle and the dashboard going crazy
when I plugged in my OBD scanner, I got not connected to the vehicle and the dashboard going crazy, and when I unplug the ODB scanner everything going back to normal...
the vehicle I am talking about ...
3
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0
answers
578
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Mk4 Astra judders, runs hot p0420 p0170 p1130
I have a Mk4 Astra 1.8 petrol 2002 130k Miles.
When starting the idle speed revs up & down, it judders when driving the first 500metres. Plenty of oil, water was a bit low. During a 2 hour ...
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3
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0
answers
323
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SilLabs OBDscan can't connect to Alfa 147: latency too high!
I have an OBD Scan tools built around the Silicon Labs CP210x chipset, but I can't get it to connect to my car at all.
When I connect the scan tool to my laptop USB port I have a driver installed and ...
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3
votes
0
answers
292
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Overwhelming the Eng. management system, is there specific course of action to recover faster
Citroen C4 2005, Petrol, UK
Yesterday I managed to overwhelm my car (for the second time I've been having it, first time was about half an year go). What happened was I was at a rather busy stop ...
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2
votes
1
answer
139
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VIN Programming for new ECU on 2010 Jeep Wrangler 3.8l w/ Manual Transmission
I've run into an issue with a 2010 Jeep Wrangler.
We've recently replace the ECU with a brand new one from the dealer and unfortunately, it was not pre-programmed for the vehicles VIN. All local ...
2
votes
0
answers
237
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No voltage between ECU GND and 5V
I had a short circuit problem with my car because of a faulty fuse and some of the engine harness wires melted together. I repaired the harness the engine starts normally but I am getting Signal high ...
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2
votes
0
answers
106
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05 Buick Rainier engine reduction how to fix?
I'm having a problem getting the engine power reduction to go away. Usually I just have to turn off the vehicle and crank it back up and it's fine. Not this time. We have tried a number of things, ...
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2
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0
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136
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110cc scooter sputters under acceleration. Resetting ECU a temporary fix
This is driving my crazy. The dealership is just throwing parts at it. First time, they hooked it up to a little cylinder which has a guage and is connected to pressurized air and connects to the fuel ...
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2
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0
answers
64
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No resistance measured between two electrical parts, ECU fault?
I'm troubleshooting a car with a faulty Camshaft Sensor error.
I used the factory test plan to test the wiring between the sensor & ECU.
Here is the wiring:
ECU Pin87 -> Wireloom Pin 87 -> ...
- 21
2
votes
0
answers
92
views
Why is this RPM graph squarewave?
'07 Subaru Outback 3.0R 5 speed auto. I am logging using the excellent RomRaider and was kind of surprised that when graphed RPM looks like a square wave in most situations, don't know if it was ...
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77
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Why would this happen:
If anybody could help me understand this behavior, I'd be grateful:
2003 R1 5PW, Fuel-injected, has an alarm/immobilizer fitted, doesn't report any fault codes:
Motorcycle would occasionally (three ...
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2
votes
0
answers
4k
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U0100 Toyota Aygo CAN Stop Communication or DTC Diagnostics, which is right?
I spent a lot of time trying to resolve some problems with a 2006 Toyota Aygo.
The most important or significant code it has is U0100: No communication with ECM/PCM A.
Information for 1KR-FE engine, ...
2
votes
0
answers
206
views
Car keeps breaking fuel injectors?
Ok so i'm having quiet a strange issues with one of my cars (08 X5 E70 4.8L V8) that may be worth discussing. It seems to keep "blowing" through injectors on only one bank.
Suddenly i noticed CEL and ...
2
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0
answers
131
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Fuel Map and fooling the speed sensor
Sorry, I didn't know what kind of title I could put for this.
I have a '97 Subaru Impreza WRX STi and, as a technical project, I would like to remove the potential (haven't checked yet) 180km/h ...
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2
votes
0
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2k
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OBD request trouble code mode 3 and mode 7
I'm trying to get my own app on phone to read Trouble code in car...
I see that i have 3 mode to do this... first is to use the mode 01 with command 01 (but this command is generic) or the mode 03 and ...
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2
votes
0
answers
117
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Emissions per mile of high MPG lean-burn gas-powered cars versus standard gas-powered cars
I am wondering if there have been studies or calculations of the NOx emissions per mile of high MPG lean-burn gas-powered cars versus standard gas-powered cars.
Honda made some great lean-burn cars ...
user25009
2
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0
answers
233
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Cadillac CTS "Traction Control Off" displayed after driving 15 mins
After driving 15 mins the "Traction Control Off" light is displayed on dashboard and radio displays "Service Brake Assist".
All go away after engine is turned off for about 20 mins.
It recently got ...
2
votes
0
answers
1k
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2003 Honda Accord not responding to accelerator
2003 Honda Accord, a few months ago we started having problems with it. All of a sudden the CEL and traction control light came on with the d4 light blinking. Also it would idle low, shift hard, and ...
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2
votes
0
answers
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Corsa C electric power steering ECU 12V power polarity
I need to know the power polarity of Corsa C Electric Power Steering ECU 12V power connector. I suppose the power is the right connector in following photo (it has 2 flat pins vertically aligned):
If ...
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2
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0
answers
227
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Honda Civic Mk8 FK3 interfacing with ECU/body computer
I wanted to create a few improvements for a FK3 Civic, such as:
- automatic door locking
- automatic cornering lights
For those, I need to be able to read few parameters from the car's computers:
- ...
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2
votes
0
answers
47
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'93 Cavalier ECU issue
I have an old cavalier that loses power to the ECU randomly. It can take many attempts to start again. I do not lose battery power to the lights or stereo.
If I flick the keys to the on position ...
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1
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0
answers
45
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GMC c5500 TopKick
There is a transmission problem and a code on this truck but my scanners cannot read the PCM codes. What scanner should I use to read PCM codes on a GMC c5500 TopKick?
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1
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0
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65
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How to find the typical ranges for sensor values?
I've recently got an OBD scanner and have found some of the live data streams to be very useful, I was monitoring the timing advance value and observed it fluctuating at idle by 10 deg or so the range ...
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1
vote
1
answer
93
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If I change ecu and ignition with the keys wil engine start or will need coding or change pump.ldv van with transit engine ECU and immobiliser
If I change ECU and ignition with keys will engine start or will need coding or change and fuel pump . it's ldv convoy 2004 with transit engine ECU and immobiliser
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1
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0
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191
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Why is knock sensor tripping "check engine" light but only on warm-up (10 min/1 mi)
2011 Honda Pilot 4WD shows P0325 code but only until the car warms up (10 mins/1 mile). Reset with OBDII the code does NOT come back on. 87 octane gas from many stations in a 50 mile radius. Code does ...
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1
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177
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2010 Dodge Avenger : Battery light coming on, battery discharging
The patient is a 2010 Dodge Avenger R/T with the Federal-spec 2.4L I4/4 speed automatic. It has ~117K miles.
My son's original complaint was that the battery light had come on while driving to an ...
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1
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0
answers
70
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ECU leaks current
Im the proud owner of an ER-6F from 2009.
I just tested my bike for leaking current and noticed it did. When pulling the fuses I found the ECU to be the culprit. I assume this is not normal. What do i ...
1
vote
0
answers
73
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Can't find replacement ECU/ECM
I recently had some water damage to my 2016 Hyundai I-30 ECM and now I need a replacement, however I'm unable to find the exact Part using the part number. My part no. is 39127-2b693 but no luck ...
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72
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Dodge Grand Caravan Won't Turn Over
I have a Dodge Grand Caravan 2001 that was having running rough and the exhaust smelled like raw gas. I replaced some sensors and that didn't work so I decided to replace the ECU. I got a new ECU from ...
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0
answers
1k
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Mitsubishi mirage Code P1590 A/T torque reduction req. comm
The check engine light on my mitsubishi mirage is on and upon scanning the codes, I am getting the following codes:
U0131 EPS CAN timeout
U0101 T/M CAN timeout
U0121 ABS/ASC CAN timeout
P1590 A/T ...
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1
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0
answers
126
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What are the factors that rev hang depend on? Does rev hand depend on the engine load?
I know that rev hangs are intentionally introduced to modern vehicles that operate on electronic throttle bodies, by programming the ecu to close the throttle valve slowly (in gasoline engines) even ...
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Used motor and trans in my 09 escape limited 2.5l. Does it need to be reflashed?
It will start if starter relay is jumped and stay running but will not Shift into gear.
Replaced the starter switch with new one and new starter relay. No power to the starter switch as I tried to ...
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1
vote
1
answer
63
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Help Identifying Wiring Harness
I need to find out what this goes, the year and I think it’s to a corvette eco and wiring harness but don’t know for sure Help
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0
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I have a 2000 ford contour 2.0 runs fine but will not get any faster then 40 mph no matter how much throttle I give,
Motor runs fine transmission shits fine has full rpm range all gears but at 40 it will not run any faster no matter how much throttle you give
- 11
1
vote
0
answers
5k
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Why Long Term Fuel Trims Remains in Negative?
Dear Experts here im attaching log of 1SZ-FE, 1.0L engine for your kind consideration, please advice why my LTFT remains in -ive though MAF, Intake Air Temp sensor, ECT sensor and O2 sensor is working ...
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1
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1
answer
45
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'09 Prius II - No Start. Hybrid light and CEL on
I got a new (used) prius a couple weeks ago. Apparently sold by a weasle. It's never started reliably, and the red triangle light comes on / off. Jumping it would start it though. I replaced the low ...
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0
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72
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I have a seemingly very hard wiring problem to solve
Further to my last question :
I have a Renault Clio 1.2 2010 that keeps coming up with a P0638 (Throttle Actuator Control Range/Performance) error (according the the OBD2 device I have).
One thing I ...
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1
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0
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125
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2004 Vitz door/trunk control(ler?) problem
I have a 2004 Vitz which uses a key with built in 1 button remote. This remote is supposed to unlock the doors and allow the boot switch to operate. (Car is started with a regular key)
The doors work ...
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0
answers
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ECM questions on 1986 G30
Dumb question perhaps.....but I've gotten different answers. Does my 1986 G30 motorhome have an ECM....if so where is it located. Everything I've read says that a low idle problem cannot be adjusted ...
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4
answers
6k
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Can the original ECU be replaced with other ECU codes on the same vehicle?
Here is the original ECU of the car, but I have a question whether it can be replaced by another ECU with the same MEG code 17.9.12.1 but different from the 39110-04006 line (by uploading the original ...
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0
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Which Engine Control Module (ECM) Software version do I need to fix the Emissions Service Action 24DR for 2014 Volkswagen Passat?
Which Engine Control Module (ECM) Software version do I need to fix the Emissions Service Action 24DR issue for 2014 Volkswagen Passat?
Some details below:
The Emissions Service Action 24DR issue:
...
1
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0
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41
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Engine not rev over 3500 after new ECU installed same number
I have Honda civic vtec 1999 with D15 engine installed.
ECU/PCM reporting error and mechanic told me this computing having issue in IC
I bought new ECU same number but after connecting, car engine ...
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1
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0
answers
42
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Is it possible to reset a modified Airbag Control Unit to factory default?
I discovered my BMW E46 320d has been in a small crash and the airbag was deployed. The previous owner didn't fix it correctly and reused the airbag and modified the Airbag Control Unit (probably just ...
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Car Jump Started in wrong way
We switched the jumper cables when trying to jump start my Altezza 4 cylinder. Main fuse and other fuses were blown. I replaced all the damaged fuses and battery. When we eventually got the car to ...
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vote
0
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424
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Fault code retention on scania
I had an incident in a Scania which was showing an "ABS Malfunction" warning on the dash at the time.
My inquiry is if it is possible to "historically" look into the system and see the fault and any ...
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1
vote
0
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32
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Kia rio 2012 engi. 1.4 power supply relay
Dears,
I have checked a car kia rio 2012 using active test for engine in diagnostic tool all test are succeed except the power supply relay i tried to locate it but I failed. Could you help me to ...
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vote
0
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5 speed to 6 speed transmission swap reprogramming?
I have a 2003 Pontiac Vibe (which is the same as Toyota Matrix) that the transmission locked up. For what I researched it is a very common problem with the Vibe. Solution suggested was to swap it for ...
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vote
0
answers
291
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non v-tec swap to a v-tec
ive got a 98 civic dx engine is a D16y7 non v-tec I have swapped engines to a v-tec D16Z6. im having problems with the ecu it does not work on a v-tec motor. it does start the car but no v-tec ive ...
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