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Home >> Buick >> 2002 >> Regal LS >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P1381: Misfire Detected - No Communication With Brake Control Module >> Test Description
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Test Description

The numbers below refer to the step numbers in the diagnostic procedures.

  1. 2

    This step ensures that the EBCM is capable of transmitting serial data on the serial data circuit.
  2. 4

    Test the serial data circuit at the EBCM for correct voltage.