How do you replace the pcm?

1994 LEXUS ES
143,000 MILES
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LARRYYARB
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I need to replace my pcm/engine control for my 1994 lexus. It looks as easy as just plugging in the replacement and turning on the car.


Do I need to program or disable anything for it to work?

thanks so much!!

Larry

Feb 23, 2012 at 8:06 PM
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HMAC300
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it needs to be reprogrammed as well just not replace it.
Feb 23, 2012 at 8:43 PM
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LARRYYARB
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Does it have to be programmed to match my VIN?
Feb 23, 2012 at 9:37 PM
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HMAC300
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no but it needs to be reprogrammed for your drivetrain
Feb 23, 2012 at 9:47 PM