The Fastest Way to Add BMW E-series Key with AK90

Here we introduce the fastest way to add a BWM E-series key with AK90 Key Programmer. By reading a 1997-2006 BMW EWS3 immobilizer PCF7935 chip as an example.

Tool Required
Software: AK90 software
Hardware: BMW AK90 Programmer, EWS module, BMW key
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Procedure
Step1. Remove the EWS module from the car which is under the steering wheel.
* DO NOT switch on the ignition if the EWS module has been removed from the vehicle.

Step2. Use carburetor cleaner to remove the conformal coating from the Motorola chip pins.
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Step3. Attach the 10-pin connector to both the chip and AK90 programmer to read the Motorola chip and generate a new key.

Open AK90 software:
Connect >> Read EWS >> OK >> OK
Connect the 10-pin cable firmly to the Motorola pins after checking for any leftover conformal coating.
Reading 0D46J(MCU)…wait until 100%
Save the data file.
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Write Key >> Selected blank key position >> Write key >> PCF7930/35 >> Write key
Put BMW key to AK90 coil, write? Yes
Writing 7930+7935 … until 100%.
Write key OK.
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Step4. Start the car after reconnecting the EWS module. If it doesn’t start after 2 attempts, use a diagnostic tool to sync EWS to ECU.

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