A vehicle anti-theft system that inhibits engine run unless certain requirements are met before a start attempt. The most common is an RFID chip in the ignition key.

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2
votes
1answer
43 views

MINI R53 won't turn over - immobiliser problem?

Mini Cooper S (2003) I've been noticing recently that it's been taking two attempts to get my car to turn over. I twist the key to the third position and nothing. I then try again and it works. This ...
2
votes
1answer
40 views

How do I reprogram an immobilizer system on a 2005 Honda Civic?

I'm currently working on an '05 Honda Civic. I replaced the steering column but now it has a different key. How do I reprogram the immobilizer system?
6
votes
1answer
76 views

Old immobiliser playing up, won't add new transponders

Is it possible that an immobilizer has malfunctioned to the point where the adding-new-fobs process doesn't work, but the actual immobilizer is still working? Or is it more likely I'm doing something ...
2
votes
2answers
509 views

Immobiliser starter relay versus fuel pump relay

I want to be be able to immobilize a vehicle. The use case is for theft prevention. All along I have been thinking in terms of disabling the starter relay, as discussed here, Current from key to ...
2
votes
1answer
455 views

Current from key to solenoid of starter motor relay

I am considering installing a starter motor immobilizing relay inline with the starter setting of the key and starter solenoid. I recently got a MAH-112-C-4 online. It has a 30A switching ...
4
votes
0answers
234 views

Volvo V40 wont start, red led light on speaker flashes rapidly

My Volvo V40 will not start. When I put the key to position 2, the red LED light on the left speaker on the dash flashes rapidly for 15 seconds. When I turn the key to position 3 the lights on the ...
5
votes
1answer
3k views

Citroen Xsara went into “Eco mode” then total blackout

I recently bought a used 2002 Citroen Xsara 2.0 Exclusive (petrol) which had a single electrical issue; the rear wiper did not stop in the "park" position but rather timed out in a random position. ...
1
vote
0answers
39 views

Ignition wire breaks while driving [closed]

I'm putting an immobilizer on the ignition circuitry. Worst case scenarios, if the immobilizer, (normally closed relay), broke what would happen? Would the car continue as normal and then not start ...
2
votes
1answer
481 views

How to add a new transponder / key to a Daihatsu immobiliser

How can I add a new key to a Daihatsu immobiliser? The key I have has a Texas 4C transponder, and is used in the Daihatsu Copen and Daihatsu YRV (to name just two).
4
votes
0answers
251 views

Renault modus 1.5 DCI imobilser will not go off

I have recently bought a 2005 Renault modus 1.5 DCI.The dash board displayed 'steering fault' which rendered power steering off. After leaving lights on over night,the battery was drained.I then ...
2
votes
1answer
226 views

Opel Frontera Electrical Problem - can't access diagnostics

I have an Opel Frontera 1999 2.2 Diesel. It refused to turn over a couple of years ago and it's taken me this long to get to doing anything about it. I was advised that it was something wrong with the ...
2
votes
3answers
759 views

How to program a transponder key of a 2000 Toyota Sienna

This is a follow-up question to my previous question regarding the replacement of the ignition switch cylinder in my car. In my 2000 Sienna there is an immobilizer circuit embedded in the switch. I ...
3
votes
2answers
9k views

Replacing the ignition switch tumbler (cylinder)

Recently we started having problems turning my 2000 Sienna's key in the switch past the OFF position. I have to wiggle the wheel for some time and play with the key, until it "catches" the right ...