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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.

B144A 01 

The ignition output is not active and a short to battery is detected 3 consecutive times on the ignition voltage circuit.

B144A 02 

A short to ground is detected on the run relay coil control circuit.

B144A 04 

The ignition output is not active and an open is detected 20 consecutive times on the ignition voltage circuit.

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