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Conditions for Setting the DTC

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

B1451 01 

Ignition output is not active and a short to battery is detected 3 consecutive times.

B1451 02 

Ignition output is active and a short to ground is detected 3 consecutive times.

B1451 04 

Ignition output is not active and an open circuit is detected 20 consecutive times.

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