Questions tagged [electronic-control-module]

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Software Number from ECU File

I have a ECU file. is there any way to find software number from my ECU file using php programming languages ?
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4 answers
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1986 truck running rough and intermittent fault codes. Faulty capacitor?

My 1986 truck is running rough and has fault codes that come and go. I think the electronic engine control module may be the culprit. I removed it and one of the capacitors has odd markings on the ...
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Is there any ecu(engine control unit)in a 70 cc bike like Honda cd 70?

I know that ecu is there in cars but I am confused is there any ecu(engine control unit) in a 70 cc bike like Honda cd 70?
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Why is my car wont start

My mechanic changed my ecm and programmed it to my 2001 buick regal he programmed both sets of keys i have now all of a sudden car will crank but wont start also battery keep draining. Before he ...
Donna Beal's user avatar
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Positive battery terminal is seized (rust or what not), can electrical work be still done with only the negative cable removed

Looks like positive would need to be cut out, it's completely locked shut. Disconnected the negative. Will there be an issue with electrical work conducted, curious
access_granted's user avatar
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2008 scion tc electrical issue

Hey there I have a 2008 scion tc manual transmission. I’ve ran into the problem of the car reading 12v at idle, 11.5 when lights and heat are on and 10.9 when driving. I checked that the alternator is ...
Jay sanz's user avatar
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Mercedes A35 AMG 2022, short circuit/won't start/no comms with any vehicle modules

I need some help or direction. I recently purchased a salvage a35 which had undercarriage damage. On inspection it appears the wiring cable underneath the vehicle had been destroyed, chafing the wires ...
Hassan Iqbal's user avatar
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Ford PCM how to open

I have a problem with a PCM hardware VK2-C3812(8C3A-12A650-BFD). Three connectors on the "front". I get the case to separated alright but the three connectors are glued to the upper(thinner) ...
George Csahanin's user avatar
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1 answer
125 views

Shorted battery on 2020 Mercedes A35, now car won't start

I recently had a short happen to me when I was looking at a broken plastic clip on the ECU housing. I was just trying to get the part # to replace it, so I wasn't expecting to work on the car and need ...
Pedram's user avatar
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ECM Acadia SLT with Enclave engine

I have a 2007 Acadia SLT with a 2008 Enclave engine . I have a couple of codes that keep coming back . P0036 P0024 they will not clear . Can I reprogram the ECM or do I have to get an ECM for that ...
Dennis Randall's user avatar
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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?
Henry's user avatar
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Is it required to claim an address with J1939?

I'm working on an ECU from a car engine. When powering the ECU I get a J1939 NAME message. I was wondering do I have to do the same by sending an address claim with my nodes NAME or not? The reason I'...
Smdeitz's user avatar
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Can a cheap OBDii reader plus an adapter cable read the fault codes from a 1999 BMW 316 compact?

I have a 1999 BMW 316 compact auto (e36) with a minor engine problem, I think it goes into "get you home mode" until it has warmed up. I also have a cheap Elm327 WiFi OBDii Interface ...
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Engine swapped my KIA but dont get a spark

I engine swapped my KIA optima 2.4L N/A with the 2.0L turbo variant, however when I use the original 2.4L N/A ECU I get spark from the plugs but when I swap the ECU to the 2.0L turbo variant I get no ...
Darius Nicoli's user avatar
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2017 VWPassat RLINE 1.8T

I basically put some acidic and corrosive fluids inside of my windshield wiper reservoir tank didn’t notice it until a few weeks later and plenty of trips, using my fluid and cleaning my windows that ...
Mbuser79593's user avatar
1 vote
1 answer
34 views

Engine swap & ecu

So I was thinking about putting a vw 2.0t into my 1999 eclipse gs. Would I have to get a standalone ecu or can I wire in the engines ecu in place of the eclipses oem. I'd be able to figure everything ...
QuickSixX42's user avatar
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Blower motor or resistor failed?

Yesterday my blower motor suddenly stopped working when I started the car in the morning and my climate control display started flashing (indicating a fault). I immediately suspected a faulty blower ...
Aden's user avatar
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2017 Ford explorer HVAC blower motor will occasionally start when the motor starts however will turn off shortly after

I have a 2017 Ford explorer which has an intermittent issue with the blower motor. About 95% of the time when starting up the car, the blower motor will not start at all and will not respond to any ...
tuskiomi's user avatar
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Got a new ECM for my 2012 chevy malibu LS (flex engine) and it is showing codes for the crank shaft sensor

So the car will run and drive(mostly) but has codes flashing saying the "crankshaft sensor" is unlearned and keeps going into limp home mode. Does it need to be programmed again? It was ...
Kacey Buckley's user avatar
2 votes
1 answer
214 views

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 ...
Stephen Arsenault's user avatar
1 vote
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174 views

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 ...
jamie1989's user avatar
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1 answer
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Multiple sensor returns on same wire

How does a PCM (Powertrain Control Module), a.k.a. ECM, know which sensor is which when multiple sensors' return signal is on the same wire? I have a 2004 F150 wiring diagrams manual and am perplexed ...
john gleason's user avatar
1 vote
2 answers
75 views

ABS ECU command while bleeding brakes

My OEM scanner gives me the option to command the ABS system to do something important while bleeding brakes. In the past (before I owned this scanner) I seemed able to bleed the brakes fine on the ...
TSG's user avatar
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2012 dodge charger 5.7 automatic

Installed new ecm and pcm already flashed by seller. Dash displays message "press clutch and press start button to start " car is automatic. No crank u0100
Daniel 's user avatar
1 vote
1 answer
119 views

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
Eugenijus 's user avatar
2 votes
2 answers
684 views

Charging car battery with charger without disconnecting from car

Got a Toyota Corolla E170 and it is only used for highway travels twice a month. Car has a tracker installed as well. I want to give the battery (lead acid 46AH) a top up using battery charger (10A) ...
Ali's user avatar
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I have a 2000 Jetta 1.8t. can I use a computer from a 2018 Jetta 1.8 t? And if so are the tunes different?

I have a 2000 Volkswagen Jetta 1.8T can I use a computer out of a 2018 Jetta same motor if so what are the advantages or disadvantages?
David Korn's user avatar
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I bought a used ECM off eBay for my vehicle. Same year, engine, options everything as mine. Do I still need to have it flashed to my car?

I bought an ECM off eBay for my 2004 Durango, donor vehicle is the same year, same engine (5.7), same tire size, same submodel. I think the only difference is the mileage, Do I still need to have it ...
Dan Hathaway's user avatar
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2001 Manual Mercedes C220 CDI - ECU replacement

Well bring a really typical blond I switched the jumper leads onto the wrong terminals on the battery.Red to black and Visa Versa. I blew up the on board computer. Hence I blew up the ECU. I really ...
Debbie's user avatar
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1 answer
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ECU update rate?

('07 Cobalt LS, 2.2L Ecotec) Using an OBDlink SX USB adapter and their OBDwiz app on an old laptop, I get the chart below. Engine is at steady (800 rpm?) idle, closed-loop. The displayed data has ...
George's user avatar
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1 vote
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250 views

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 ...
Bolo59's user avatar
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1 vote
1 answer
190 views

Check beforehand if will pass emissions test?

How can I check, using an Bluetooth ELM327 OBD-II dongle, whether my car will pass an emissions test?
Geremia's user avatar
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1 answer
569 views

Can an ELM327 adapter be used to flash a VIN?

Can a Bluetooth ELM327 adapter be used to flash a VIN? It's claimed here that The vin number is about the only thing in the PCM that's not a protected value.
Geremia's user avatar
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1 vote
1 answer
335 views

I replaced the PCM with one programmed to my vin but won't run

I ordered a preprogrammed to the vin# PCM for my 03 GMC Sonoma SLS after I installed it my truck will turn over but won't run, I haven't seen a padlock on the dash but the security light above the rpm ...
Nate's user avatar
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5 votes
2 answers
2k views

Original Ecu swap back into my car with correct VIN

I have a 2015 Ford fiesta SE. I purchase a ECU online which I had to give my VIN# for programming. When I receive ECU in mail install I'm my car,car didn't start so I had locksmith to program my key ...
Madrid Perrantes's user avatar
2 votes
0 answers
289 views

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 ...
giannisf's user avatar
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0 votes
1 answer
138 views

How to deactivate hacking of my ECU and an additional tracker that's placed without my consent

My fear / opinion is that my vehicle's ECU has been hacked. I'm worried about going full speed and someone suddenly stops my vehicle remotely with their installed immobilizer. I'm aware vehicles have ...
Curious bit's user avatar
0 votes
2 answers
197 views

Ford F150 2009 will not start!! (Has power)

Last update: we got our truck back and it was that someone who had checked about the lights "accidently" changed fuses out of place and some went missing. It works now. Update 2: We gave up ...
Maria's user avatar
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1 answer
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Ways to log data on Suzuki GSXR600-R Engine

I am working on a university project where we are building a race car with a Suzuki GSXR600-R Engine and ECU. I am wondering if there is any options for how i am able to record data off of this onto a ...
Callum Gourlay's user avatar
1 vote
0 answers
244 views

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 ...
ggariepy's user avatar
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1 vote
0 answers
61 views

Used preprogrammed ECM [closed]

Bought a refurbished ECM pre programmed to my Vin number Bottom vehicle a year ago used used and have had trouble with engine light and limp mode in the last 6 months 6 months we have replaced about ...
Rebecca Lynn Hogland's user avatar
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0 answers
110 views

Skoda Fabia AC not cooling after 35-40 minutes

My 2008 Petrol skoda fabia does not cool after 35-40 minutes. The Ac blows out air but it's not cool. Last year I had changed the compressor and condenser and the problem started since then. Earlier ...
Zaid's user avatar
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1 vote
0 answers
91 views

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 ...
Andreas Damen's user avatar
0 votes
1 answer
2k views

Does OBD-II have any means for reporting current oil pressure?

I recently had the low oil pressure warning light come on in my car. After letting the engine cool down, the warning was gone and I was able to drive home (which was just a few km) with no issues. I ...
user149408's user avatar
2 votes
1 answer
2k views

Understanding the Voltage coming into an Evap Purge Solenoid

I am trying to understand how the evap purge solenoid is controlled by the ECM. In my case we are talking a 2011 Wrangler JK, but I believe the system works similarly in many other vehicles. I ...
CRAIG's user avatar
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0 votes
1 answer
847 views

how to minimally connect MT-05 so that the LIN communication works

I have an MT05 (DELPHI-II) on the my desk. I tried to communicate with him via LIN, but he didn't answer. I provide the following links: ground, power, ignition and LIN (image below). When I connect ...
NikB's user avatar
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3 votes
1 answer
796 views

Can i use old ecu on replacement enigine with same model number

so basically head gasket went in my zafira, engine number z16xep. After all the damage to pistons and cylinder etc it is cheaper to get replacement engine.. that's what I did. Its the same 1.6 twin ...
karl frankham's user avatar
1 vote
0 answers
82 views

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 ...
Jay P's user avatar
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0 votes
2 answers
154 views

Chip tuning simultaneously decreasing fuel consumption and increasing performance

Recently, I came across the webpage of a tuning shop where the shop claims that by doing chip tuning they can simultaneously achieve superior performance and less fuel consumption (based on how they ...
mindthegap's user avatar
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1 answer
300 views

What OBD tool I can use to retard/advance ignition timing? I like to experiment on GM Suburban to burn hydrogen instead of gas

I know Hydrogen burns much faster, so in order to use this fuel in a modern car, the ignition timing tables must be modified. Is it possible to modify the timing so the ignition happens after tdc or ...
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