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9 votes
Accepted

How does a cobra alarm system disable starting

I'm afraid I have some bad news for you. Assuming that your alarm is a Thatcham approved alarm and was installed by an approved installer, it must disable the vehicle at a minimum of three different ...
Steve Matthews's user avatar
6 votes

OBD II Scanner refuses to communicate with the vehicle!

Courtesy of a SNAPON document If the scan tool does not receive data from an OBD II vehicle TEST 1: Connect the positive DMM lead to DLC pin 4 and the negative DMM lead to the negative battery ...
ElectronicsNewbie's user avatar
5 votes
Accepted

Ducati Monster 821 - Ignition problems

You stated that you can get it to start You need to fuss with the ignition switch and move the key in and out in order to get it to start. More than likely something to do with the physical ...
DucatiKiller's user avatar
  • 32.9k
4 votes
Accepted

Tec-tus 1 immobilizer programming

It turned out the alarm was not made by tec-tus, only the transponder. I emailed the right company, and got a reply rather early in the morning with pdf's with schematic and programming. Basicly the ...
Lenne's user avatar
  • 291
3 votes

What does it take to program a used ECU?

I went through the "replace a faulty engine computer" drill a year or so ago and it was quite an ugly experience. 1). The manufacturer did NOT sell replacement units. This car was 15 years old. If ...
zipzit's user avatar
  • 6,569
3 votes

2003 Honda Accord Crank But no start

Check circuit F28 for open. (Pin 9 DLC to A16 PCM) EDIT: Check pin 3 (Immobilizer) to 14 DLC for continuity. If okay, may be inclined to replace immobilizer as first course of action. After ...
Joey P's user avatar
  • 111
3 votes

How does a cobra alarm system disable starting

Having a Cobra alarm fitted to my 1985 Supra, I can confirm what Steve Matthews wrote. The alarm inhibits the ECU (thereby coil and injectors), fuel pump and starter motor. Fundamentally, this is done ...
Gargravarr's user avatar
2 votes

Ducati Monster 821 - Ignition problems

So i followed DucatiKiller's answer and sent it in to the dealership. They have no clue to what the problem can be - but are changing the starter. We will see how it will work out. New update ! ! ...
Ripcurl6's user avatar
  • 132
2 votes

MINI R53 won't turn over - immobiliser problem?

If you don't get a click at all, then I'd think that the signal isn't getting to the starter motor, so either an immobiliser problem as you suggest, or a problem with the switch as per JPhi's comment. ...
Nick C's user avatar
  • 28.8k
2 votes

What does it take to program a used ECU?

Experience with other vehicles means you will need the computer / linkcable / software (not an aftermarket one but usually a dealer level) that matches your vehicle and that will be able to code your ...
Solar Mike's user avatar
  • 34.6k
2 votes
Accepted

Mini Cooper R56 Completely Dead

Tested by auto electrician. POWER DISTRIBUTION BOX CONTROL MODULE was bad that takes the power from the battery and passes on. Not sure how exactly is this module different from the fuse box next to ...
gfdsal's user avatar
  • 175
2 votes

Ford Figo not starting immobilizer

The very first thing to do with this is get your battery checked. Then if bad, replace it. Then when you have a working battery, check the charging system. Make sure all battery and charging system ...
Jupiter's user avatar
  • 3,330
2 votes

Audi A3 2005 Damaged ignition barrel?

To answer my question. The ignition assembly is made of four parts: housing, ignition switch, ignition barrel and immobiliser coil. If the immobiliser coil is removed and fitted to the new assembly ...
Wintermute's user avatar
1 vote

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

Your ecu is not capable of doing the control you think, there would need to be an external device attached to it so you can simply check the wiring from the ecu and look for out of place parts. If ...
narkeleptk's user avatar
  • 3,780
1 vote

Honda Civic 2002 remote central locking and key stopped working

The fault was due to a faulty MICU replacing the MICU resolved the issue.
Wintermute's user avatar
1 vote

Cant reprogram my immobillizer cause my security light shuts off after five seconds chevy equinox 2012

The equinox of this year are a bit odd, is it a used ECM or new one? For the most part you are not be able to reprogram used ecms of this type unfortunately because the way the VIN and security data ...
narkeleptk's user avatar
  • 3,780
1 vote

2006 Honda Civic Sedan with flashing green key light on dashboard

There are a few possibilities that cause intermittent issues with the immobilizer. Here are a few I run into with 1 being the most common. The key gets damaged. If its the remote head key then this ...
narkeleptk's user avatar
  • 3,780
1 vote

My car doesn't start and my mechanic can't figure what the issue is

If this happened right after you re-cased your key then the most likely possibility is that you have damaged the transponders antenna on the pcb. They are very fragile. Generally the keyless entry ...
narkeleptk's user avatar
  • 3,780
1 vote
Accepted

What does it take to program a used ECU?

None of the provided answers are specific about programming a replacement PCM to a 2000 Mazda MPV so I wanted to chime in for any future visitors needing help. There are two things that need to be ...
narkeleptk's user avatar
  • 3,780
1 vote

How to program a transponder key of a 2000 Toyota Sienna

There's an easy way to add a new key to the computer, as designed by the manufacturer. This information has been taken from this site -- all credit there. Start with key out of the ignition, ...
Cullub's user avatar
  • 1,364

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