Use a digital ohm meter as opposed to attempting to read the lettering on the chip. This will give you an immediate value that will fall within the tolerance of the chip resistor.

No, it doesn't. It uses a "passlock" system. The resistor, or "chip" is part of the ignition lock cylinder.

The chip in the key is called "passkey", where there is a resistor in the key, which is quite visible.

capacitor,transistor,resistor,inductor

if it is a gm with the little resistor chip in it you could try to cleand the chip with alcohol to remove oils from skin and such

27Ω