Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [immobilizer]

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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2006 Honda Civic EX - Green Key Light on dash

Problem: I try to start my car with the original factory key, as well tried with the other factory key (both have chips in them) and the car will start, run for a second then shut off. All the while there is a green key symbol flashing on the…
Kairan
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Ducati Monster 821 - Ignition problems

I have a 2015-Ducati Monster 821 that have started to argue with me. When i turn the key to on - i see the panel light up and the fuel pump etc starts. But when i klick the ignition button, nothing happens. engine starter dont turn, nothing. I…
Ripcurl6
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How does a cobra alarm system disable starting

I have a 1998 Mazda 626 with a cobra Auto security system. I suspect some problems I have been having are related to this system and was wondering exactly how it disables starting. Specifically one thing I'm wondering is if it disables the injectors…
Robert S. Barnes
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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 wrong? Situation: I've got a '93 Toyota MR2 with…
Dan
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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. Research suggested that a wire could be broken and…
jensgram
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OBD II Scanner refuses to communicate with the vehicle!

All the fuses check out All the relays check out Could I have a faulty ignition switch? Or an open somewhere? How do I go about troubleshooting this? It cycles through all the protocols, finds none and fails to communicate. What could be responsible…
ElectronicsNewbie
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What does it take to program a used ECU?

I own a Mazda MPV 2000 with a faulty ECU. The vehicle has an immobilizer. It will not start with the former ECU. It floods the engine with fuel. After extensive diagnostics on the vehicle and the ECU it was determined that I have a faulty ECU. How…
ElectronicsNewbie
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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 position to turn to ACC position. Looking for a…
ysap
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2003 Honda Accord Crank But no start

I did something really silly last night :( - I have a 03 Accord V6 sedan that I recently changed the transmission. After I hooked up the new tranny etc.. I noticed when I start the car the SRS, (!) and the ABS lights came on. I decided to research…
andre3wap
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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 capacity, this seems to be way over specification to…
SeanJ
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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 dash clocks go off. No crank, no start, nothing.…
finlay
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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 disconected battery and charged.when I went to start…
user6688
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My car doesn't start and my mechanic can't figure what the issue is

I do apologize for the non much descriptive title, I'll try to work out a better title. Yesterday my car all of a sudden stopped starting (namely I turned the key, the engine cranks that my car doesn't start). I'm not an expert but my only initial…
user8469759
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Immobilizer ring not detecting key chip in warm weather

I have had this peculiar problem since buying my Renault Master, 3 years ago. The immobilizer usually works fine however if I park the van in the hot sun, when I try to start it, I get the immobilizer light flashing rapidly. I have 2 keys and the…
Leonardo Seccia
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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 morning, however, it took about 20 attempts. I got…
Ricky
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