What is a B0429 / B0429 err code? - Cars & Trucks

Here's a link to a forum about your code. B0249 and B0429 error codes

Here's a link to codes.
http://d-codes.com/trouble_codes/obd_codes.htm

Try pulling codes
To pull codes, put the key to on position without starting and of the three buttons on the right of speedo cluster hold down the right and left button for a few minutes until the speedo screen changes. Alternately you can get the codes pulled from autozone etc. for free.

If you are getting IPM b0429, it could be a control module. Google "b0429 cadillac forums" for more information.

B1845 Ignition Tamper Circuit Failure.
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OBD2 scanner

lower left dash on most gm vehicles

err 3 is not an engine system fault code, a tyupical code looks like this P0420, this happens to be a evaporative emission system fault code.

the whole sequence has to be entered fast. No pauses.

b0429 rear seat temperature control,b1819 rear wiper motor,p0741 clutch converter

turn key to <acc> turn radio will blink err. leave on for at least half hour.err will be replaced by enter code.