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1kz-te Ecu immobilizer gets hot when transponder is connected.vehicle not starting

Vehicle cut off and not starting No power to injector pump

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 5 Answers

SOURCE: 1KZ-TE fuel into fuel pump, and bleeders but no

possable air lock ...
looen port 1 injecter and turn over engin ok but only for a few seconds then re tighten

Posted on Mar 08, 2009

SOURCE: I have a quantim D4D

Hi Hwiracing,
Check the power feeds to the managements system sounds as though you've lost one power feed to the computer. In the event of that failing check the connections to the transponder. It sounds as though the injectors circuit are not opening and that could be the transponder could be the problem. Just an after thought, as it's a diesel, have you removed all the air from the fuel system?
Regards Johngee10

Posted on Feb 06, 2011

  • 1 Answer

SOURCE: Surf 1KZ-TE Diesel wont fire

I have the same problem. it just wont start one morning. can you please help me in case you have solved your problem already.

Posted on Apr 09, 2009

NomadTrucker
  • 166 Answers

SOURCE: I have a 2002 Toyota

First thought is ignition being way off - the ignition system usually gets the crankshaft position from a proximity switch (crank position sensor) and calculates ignition timing from this pulse. When this switch gives faulty pulses everything is off. Check connector and cable and if possible test it.

Posted on Jun 29, 2011

emissionwiz
  • 75077 Answers

SOURCE: 2002 vauxhall engined 1.7 diesel combo wont start not the pump

Hello
The engine and automatic transmission in this vehicles drive train are fully electronically controlled by a computer called the PCM (Power Train Control Module). Whenever a problem like this occurs the computer stores a record of the problem (there are of course some exceptions to this, like the fuel pump, engine coolant temperature sensor and MAF sensor for instance) in the form of a fault code in its memory, to read these fault codes you must have the systems memory scanned with a special tool. Once the fault code(s) are read you then must perform the appropriate diagnostic testing to find and resolve the problem(s) DO NOT REPLACE ANY PARTS UNTIL A TRAINED TECHNICAIN HAS DIAGNOSED THE PROBLEM TO AVOID SPEDING YOUR HARD EARNED MONEY ON PARTS THAT MAY NOT CORRECT THE PROBLEM

Posted on Jul 25, 2012

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1 Answer

2004 Chevy aveo starts then kind of putts followed by shutting off just had the converter and O2 sensor replaced. The radio and lights work great car just won't stay running once u let go of the key


Anti-theft system problem , possibility ! Do you have a security light blinking ? Security Indicator
The security indicator is located in the clock on the top of the instrument panel. The light emitting diode (LED) displays the immobilizer system status. The immobilizer contains the LED driver hardware for direct connection of the LED.
Vehicle Theft Deterrent (VTD) Operation
The immobilizer system design prevents vehicle theft by interrupting the engine operation. The immobilizer system prevents the vehicle from starting. The engine operating functions interrupt if the immobilizer system does not recognize the transponder identification code of the ignition key. The immobilizer system and the content theft deterrent system do not interact. The system includes the following components:
?€¢
The ignition key


?€¢
The column-mounted theft deterrent module with integrated antenna


?€¢
The transponder


?€¢
The engine control module (ECM

Mar 03, 2016 | Cars & Trucks

2 Answers

The immobilizer light on my dash is flashing, and the vehicle will not start, can hear the fuel pump running when I turn the key, but no crank.


Most likely your key has failed. You should find and try your spare key if you still have it. If not, then you will require someone with a tool to scan immobilizer codes and verify if there is a fault in the immo system or if it simply is saying INVALID KEY. If its faulted, it will require repairs. If its invalid key, you can use your backup key, or have a new key programmed by a mechanic or locksmith with key programming tools

Nov 12, 2015 | 2001 Volvo V40

1 Answer

Why does the security light flash even when key is on and engine will not start?


The security light flashing is the indicator. The fuel pump is disabled by the ECU because the immobilizer system does not recognize the transponder chip inside the key.

There could be several causes.
a. Either the transponder chip inside the key is bad, not programmed, or missing
b. The antennae that is located around the ignition lock is bad and/or not reading the transponder chip inside the key.
c. There is a wiring issue between the ECU and antennae.
d. The ECU is bad

You may want to seek out a qualified mechanic or automotive locksmith for help, not all mechanics and/or locksmiths are capable of handling the immobilizer systems on these vehicles. So be clear when discussing your problem to them and make sure they are capable of handling this type of problem.

If the key is not original, check to see if it is a cloned key. Some cloned keys use batteries, when the battery inside the key dies, it no longer communicates with the vehicle. Although it's not common, regular transponder chips can go bad, usually due to physical damage.

An immobilizer transceiver coil tester can be used to test the signal from the antennae at the lock cylinder.

If the ECU is determined to be bad, a used ECU with matching part numbers can be used as a replacement. Contrary to what a dealership or some shops may tell you, all that is required is an immobilizer reset service on the used, replacement, ECU to get it to function with your vehicle. A used ECU and an Immobilizer Reset Service is much cheaper than a new ECU from the dealer. Make absolutely sure that this is the problem before going this route though.

Jun 11, 2014 | 2002 Toyota Sequoia

1 Answer

What is an immobilizer and what does it do


Vehicle immobilizers prevent auto theft. A transponder chip resides in the key for the vehicle and communicates with the vehicle's computer. Toyota 4Runners did not use transponders/immobilizers until 1999 in the USA. Also see: What is a Transponder Key?

Mar 15, 2014 | 1996 Toyota 4Runner

1 Answer

Hyundai accent 2000, turns over, but sometimes wont start


hi
No gearbox oil got nothing to do with it.

Possibly the ecu not sending correct signals

Jul 07, 2017 | 2000 Hyundai Accent

1 Answer

I have a quantim D4D 2.5 relaced with a new computer box, key system and transponder. The engine management light does not come on and the vehicle refuses to start. The injector box is getting power but...


Hi Hwiracing,
Check the power feeds to the managements system sounds as though you've lost one power feed to the computer. In the event of that failing check the connections to the transponder. It sounds as though the injectors circuit are not opening and that could be the transponder could be the problem. Just an after thought, as it's a diesel, have you removed all the air from the fuel system?
Regards Johngee10

Feb 06, 2011 | Toyota Passenger Cars & Trucks

1 Answer

STARTS BUT SHUTS OFF IN SECONDS? LOST THE IGNITION KEY AND BROKE THE STEERING LOCK TO START THE ENGINE. 1999 CHEVY BLAZER.


When the ignition switch is turned on, the immobilizer control module sends a challenge signal through the antenna around the ignition switch to the transponder chip in the ignition key. The transponder key responds with an encrypted key code. The immobilizer module then decodes the key code and compares it to the list of registered keys. When the engine is started, the ECM sends a request to the immobilizer module over the data bus to verify the key is correct. If an attempt is made to start the vehicle with an invalid ignition key, the immobilizer module sends a message over the data bus to the instrument cluster to flash the anti-theft indicator lamp. If the ECM does not receive a "valid key" message from the immobilizer module within 2 seconds of engine start up, the ECM will disable the fuel injectors to kill the engine. You'll need to get a new key and get it registered in the immobilizer control module. You'll need a scan tool, the VIN number, the date manufactured and a factory-assigned PIN number.

Nov 18, 2010 | 1999 Chevrolet Blazer

2 Answers

Surf 1KZ-TE Diesel wont fire


I have the same problem. it just wont start one morning. can you please help me in case you have solved your problem already.

Jan 20, 2009 | 1995 Toyota 4Runner

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