Hi..
In my lexus gs300 i checked the immobilizer coil it dsnt get any voltage from the transponder key amplifier but the amplifier itself has 5 inputs and 2 outputs.
The outputs goes to coil which shows no voltage but among the 5 inputs 3 inputs has 12v and remaining 2 no voltages... I thought it might be key amplifier problem so i changed with new one... But it also gave the same voltages... So i don't know what next... Do u hv any idea how much the coil should get as a supply voltage and the 5 inputs for amplifier where does it come from.. If possible share block diagram for key amplifier..
Thanks
Hi Paula, I looked on YouTube and programing a Key to a lexus immobilizer looks fairly easy, The link below is that YouTube video,Also there's other lexus videos down the right side of the link that may help as well........CHEERS..
Lexus Remote Immobilizer Key Programming
SOURCE: The immobilizer for my 2001 Audi A3 needs to be reprogramed. How
This will require factory VAG software to complete. Local repair facility may be able to help if not then you will have to go to the dealer.
SOURCE: what do I have to
HI!!
DTC B2797 sets when there is a signal
being emitted from key but not being processed by transponder key
amplifier. DTC indicates that problem is not w/key, but signal from key is
not getting to PCM. Suspect harness, transponder amp or PCM. Good Luck!! Keep me posted!! A HELPFUL - 4 THUMBS - rating for this solution would be greatly appreciated. Thank you for using FixYa.
Here are some things you should check to find out what the problem is:
1. CHECK TRANSPONDER KEY COIL
TRANSPONDER KEY COIL TEST
Check continuity between terminal No. 1 and No. 2. If continuity does not exist, replace transponder key coil.
2. CHECK CIRCUITS
3. REPLACE TRANSPONDER KEY AMPLIFIER
PIN VOLTAGE TEST GS300
VOLTAGE TEST (GS300)
BETWEEN TERMINALS VOLTAGE
E16-9 & E13-17 4.5 - 5.5
E16-10 & E13-17 10 - 14
E16-21 & E13-17 10 - 14
E16-22 & E13-17 10 - 14
E16-23 & E13-17 10 - 14
Related problems with vehicles equipped w/engine
immobilizer system.
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